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LM117QML 3-Terminal Adjustable Regulator
Check for Samples: LM117QML,LM117QML-SP
1FEATURES DESCRIPTION
The LM117 series of adjustable 3-terminal positive
2• Available with Radiation Ensured voltage regulators is capable of supplying either 0.5A
– High Dose Rate 100 krad(Si) or 1.5A over a 1.2V to 37V output range. They are
– ELDRS Free 100 krad(Si) exceptionally easy to use and require only two
external resistors to set the output voltage. Further,
• Specified max. 0.3% Load Regulation (LM117) both line and load regulation are better than standard
• Specified 0.5A or 1.5A Output Current fixed regulators.
• Adjustable Output Down to 1.2V In addition to higher performance than fixed
• Current Limit Constant with Temperature regulators, the LM117 series offers full overload
• 80 dB Ripple Rejection protection available only in IC's. Included on the chip
are current limit, thermal overload protection and safe
• Output is Short-Circuit Protected area protection. All overload protection circuitry
remains fully functional even if the adjustment
terminal is disconnected.
Normally, no capacitors are needed unless the device
is situated more than 6 inches from the input filter
capacitors in which case an input bypass is needed.
An optional output capacitor can be added to improve
transient response. The adjustment terminal can be
bypassed to achieve very high ripple rejection ratios
which are difficult to achieve with standard 3-terminal
regulators.
Besides replacing fixed regulators, the LM117 is
useful in a wide variety of other applications. Since
the regulator is "floating" and sees only the input-to-
output differential voltage, supplies of several
hundred volts can be regulated as long as the
maximum input to output differential is not exceeded,
i.e., avoid short-circuiting the output.
Also, it makes an especially simple adjustable
switching regulator, a programmable output regulator,
or by connecting a fixed resistor between the
adjustment pin and output, the LM117 can be used
as a precision current regulator. Supplies with
electronic shutdown can be achieved by clamping the
adjustment terminal to ground which programs the
output to 1.2V where most loads draw little current.
For the negative complement, see LM137 series data
sheet.
1Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Copyright © 2006–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
N/C N/C1 16
N/C N/C2 15
ADJ N/C3 14
N/C OUTPUT/SENSE4 13
INPUT OUTPUT5 12
N/C N/C6 11
N/C N/C7 10
N/C N/C
89
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CONNECTION DIAGRAMS
CASE IS OUTPUT
CASE IS OUTPUT
Figure 1. 2-Pin TO Metal Can Package Figure 2. 3-Pin PFM Metal Can Package
Bottom View Bottom View
See K Package See NDT0003A Package
For the Ceramic SOIC device to function properly, the "Output" and
"Output/Sense" pins must be connected on the users printed circuit
board. Figure 3. 16-Pin CFP Figure 4. 20-Pin LCCC
Top View Top View
See NAJ0020A Package
Table 1. LM117 Series Packages
Part Design
Number Package Load
Suffix Current
K TO 1.5A
H PFM 0.5A
WG, GW CFP 0.5A
E LCCC 0.5A
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These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings(1)
Power Dissipation(2) Internally Limited
Input-Output Voltage Differential +40V, −0.3V
Storage Temperature −65°C ≤TA≤+150°C
Maximum Junction Temperature (TJmax +150°C
Lead Temperature Metal Package 300°C
Thermal Resistance θJA T0 Still Air 39°C/W
T0 500LF/Min Air flow 14°C/W
PFM Still Air 186°C/W
PFM 500LF/Min Air flow 64°C/W
CFP "WG" (device 03, 05) Still Air 115°C/W
CFP "WG" (device 03, 05) 500LF/Min Air flow 66°C/W
CFP "GW" (device 06, 07) Still Air 130°C/W
CFP "GW" (device 06, 07) 500LF/Min Air flow 80°C/W
LCCC Still Air 88°C/W
LCCC 500LF/Min Air flow 62°C/W
θJC T0 1.9°C/W
PFM Metal Can 21°C/W
CFP "WG" (device 03, 05)(3) 3.4°C/W
CFP "GW" (device 06, 07) 7°C/W
LCCC 12°C/W
Package Weight PFM Metal Can 960mg
CFP "WG" (device 03, 05) 365mg
CFP "GW" (device 06, 07) 410mg
ESD Tolerance (4) 3KV
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the
Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions.
(2) The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax (maximum junction temperature),
θJA (package junction to ambient thermal resistance), and TA(ambient temperature). The maximum allowable power dissipation at any
temperature is PDmax = (TJmax - TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. "Although power
dissipation is internally limited, these specifications are applicable for power dissipations of 2W for the PFM, LCCC, and CFP packages,
and 20W for the TO package."
(3) The package material for these devices allows much improved heat transfer over our standard ceramic packages. In order to take full
advantage of this improved heat transfer, heat sinking must be provided between the package base (directly beneath the die), and either
metal traces on, or thermal vias through, the printed circuit board. Without this additional heat sinking, device power dissipation must be
calculated using θJA, rather than θJC, thermal resistance. It must not be assumed that the device leads will provide substantial heat
transfer out the package, since the thermal resistance of the leadframe material is very poor, relative to the material of the package
base. The stated θJC thermal resistance is for the package material only, and does not account for the additional thermal resistance
between the package base and the printed circuit board. The user must determine the value of the additional thermal resistance and
must combine this with the stated value for the package, to calculate the total allowed power dissipation for the device.
(4) Human body model, 100 pF discharged through a 1.5 kΩresistor.
Recommended Operating Conditions
Operating Temperature Range −55°C ≤TA≤+125°C
Input Voltage Range 4.25V to 41.25V
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Table 2. Quality Conformance Inspection
MIL-STD-883, Method 5005 - Group A
Subgroup Description Temp (°C)
1 Static tests at +25
2 Static tests at +125
3 Static tests at -55
4 Dynamic tests at +25
5 Dynamic tests at +125
6 Dynamic tests at -55
7 Functional tests at +25
8A Functional tests at +125
8B Functional tests at -55
9 Switching tests at +25
10 Switching tests at +125
11 Switching tests at -55
12 Settling time at +25
13 Settling time at +125
14 Settling time at -55
LM117H & LM117WG Electrical Characteristics
DC Parameters
The following conditions apply, unless otherwise specified. VDiff = (VI−VO), IL= 8mA Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VDiff = 3V 100 µA 1
IAdj Adjustment Pin Current VDiff = 3.3V 100 µA 2, 3
VDiff = 40V 100 µA 1, 2, 3
VDiff = 3V, VO= 1.7V 5.0 mA 1
IQMinimum Load Current VDiff = 3.3V, VO= 1.7V 5.0 mA 2, 3
VDiff = 40V, VO= 1.7V 5.0 mA 1, 2, 3
VDiff = 3V 1.2 1.3 V 1
VRef Reference Voltage VDiff = 3.3V 1.2 1.3 V 2, 3
VDiff = 40V 1.2 1.3 V 1, 2, 3
3V ≤VDiff ≤40V, -8.9 8.9 mV 1
VO= 1.2V
VRLine Line Regulation 3.3V ≤VDiff ≤40V, -22.2 22.2 mV 2, 3
VO= 1.2V
VDiff= 3V, -15 15 mV 1
IL= 10mA to 500mA
VDiff= 3.3V, -15 15 mV 2, 3
IL= 10mA to 500mA
VRLoad Load Regulation VDiff= 40V, -15 15 mV 1
IL= 10mA to 150mA
VDiff= 40V, -15 15 mV 2, 3
IL= 10mA to 100mA
VDiff = 3V, -5.0 5.0 µA 1
IL= 10mA to 500mA
VDiff = 3.3V, -5.0 5.0 µA 2, 3
IL= 10mA to 500mA
ΔIAdj / Load Adjustment Current Change VDiff = 40V, -5.0 5.0 µA 1
IL= 10mA to 150mA
VDiff = 40V, -5.0 5.0 µA 2, 3
IL= 10mA to 100mA
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LM117H & LM117WG Electrical Characteristics
DC Parameters (continued)
The following conditions apply, unless otherwise specified. VDiff = (VI−VO), IL= 8mA Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
3V ≤VDiff ≤40V -5.0 5.0 µA 1
ΔIAdj / Line Adjustment Current Change 3.3V ≤VDiff ≤40V -5.0 5.0 µA 2, 3
IOS Short Circuit Current VDiff = 10V 0.45 1.6 A 1
TA= 25°C, t = 20mS, VDiff = 40V, IL-6.0 6.0 mV 1
θRThermal Regulation = 150mA
VDiff ≤15V See(1) 0.5 A 1, 2, 3
ICL Current Limit VDiff = 40V See(1) 0.15 A 1
(1) Specified parameter, not tested.
LM117H & LM117WG Electrical Characteristics
AC Parameters Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VI= +6.25V, VO= VRef,
RR Ripple Rejection ƒ= 120Hz, eI= 1VRMS, See(1) 66 dB 4, 5, 6
IL= 125mA
(1) Tested @ 25°C; specified, but not tested @ 125°C & −55°C
LM117K Electrical Characteristics
DC Parameters
The following conditions apply, unless otherwise specified.VDiff = (VI−VO), IL= 10mA Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VDiff = 3V 100 µA 1
IAdj Adjustment Pin Current VDiff = 3.3V 100 µA 2, 3
VDiff = 40V 100 µA 1, 2, 3
VDiff = 3V, VO= 1.7V 5.0 mA 1
IQMinimum Load Current VDiff = 3.3V, VO= 1.7V 5.0 mA 2, 3
VDiff = 40V, VO= 1.7V 5.0 mA 1, 2, 3
VDiff = 3V 1.2 1.3 V 1
VRef Reference Voltage VDiff = 3.3V 1.2 1.3 V 2, 3
VDiff = 40V 1.2 1.3 V 1, 2, 3
3V ≤VDiff ≤40V, -8.9 8.9 mV 1
VO= 1.2V
VRLine Line Regulation 3.3V ≤VDiff ≤40V, -22.2 22.2 mV 2, 3
VO= 1.2V
VDiff= 3V, -15 15 mV 1
IL= 10mA to 1.5A
VDiff= 3.3V, -15 15 mV 2, 3
IL= 10mA to 1.5A
VRLoad Load Regulation VDiff= 40V, -15 15 mV 1
IL= 10mA to 300mA
VDiff= 40V, -15 15 mV 2, 3
IL= 10mA to 195mA
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LM117K Electrical Characteristics
DC Parameters (continued)
The following conditions apply, unless otherwise specified.VDiff = (VI−VO), IL= 10mA Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VDiff = 3V, -5.0 5.0 µA 1
IL= 10mA to 1.5A
VDiff = 3.3V, -5.0 5.0 µA 2, 3
IL= 10mA to 1.5A
ΔIAdj / Load Adjustment Current Change VDiff = 40V, -5.0 5.0 µA 1
IL= 10mA to 300mA
VDiff = 40V, -5.0 5.0 µA 2, 3
IL= 10mA to 195mA
3V ≤VDiff ≤40V -5.0 5.0 µA 1
ΔIAdj / Line Adjustment Current Change 3.3V ≤VDiff ≤40V -5.0 5.0 µA 2, 3
IOS Short Circuit Current VDiff = 10V 1.6 3.4 A 1
TA= 25°C, t = 20mS,
θRThermal Regulation -10.5 10.5 mV 1
VDiff = 40V, IL= 300mA
VDiff ≤15V See(1) 1.5 A 1, 2, 3
ICL Current Limit VDiff = 40V See(1) 0.3 A 1
(1) Specified parameter, not tested.
LM117K Electrical Characteristics
AC Parameters Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VI= +6.25V, VO= VRef,
RR Ripple Rejection ƒ= 120Hz, eI= 1VRMS, See(1) 66 dB 4, 5, 6
IL= 0.5A
(1) Tested @ 25°C; specified, but not tested @ 125°C & −55°C
LM117E Electrical Characteristics
DC Parameters
The following conditions apply, unless otherwise specified. VDiff = (VI−VO), IL= 8mA, PD≤1.5W Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VDiff = 3V 100 µA 1
IAdj Adjustment Pin Current VDiff = 3.3V 100 µA 2, 3
VDiff = 40V 100 µA 1, 2, 3
VDiff = 3V, VO= 1.7V 5.0 mA 1
IQMinimum Load Current VDiff = 3.3V, VO= 1.7V 5.0 mA 2, 3
VDiff = 40V, VO= 1.7V 5.0 mA 1, 2, 3
VDiff = 3V 1.2 1.3 V 1
VRef Reference Voltage VDiff = 3.3V 1.2 1.3 V 2, 3
VDiff = 40V 1.2 1.3 V 1, 2, 3
3V ≤VDiff ≤40V, -8.9 8.9 mV 1
VO= 1.2V
VRLine Line Regulation 3.3V ≤VDiff ≤40V, -22.2 22.2 mV 2, 3
VO= 1.2V
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LM117E Electrical Characteristics
DC Parameters (continued)
The following conditions apply, unless otherwise specified. VDiff = (VI−VO), IL= 8mA, PD≤1.5W Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VDiff= 3V, -15 15 mV 1
IL= 10mA to 100mA
VDiff= 3.3V, -15 15 mV 2, 3
IL= 10mA to 100mA
VDiff= 40V, -15 15 mV 1,2
VRLoad Load Regulation IL= 10mA to 100mA −25 25 mV 3
VDiff= 3V, -15 15 mV 1
IL= 10mA to 500mA
VDiff= 3.3V, -15 15 mV 2, 3
IL= 10mA to 500mA
VDiff = 3V, -5.0 5.0 µA 1
IL= 10mA to 500mA
VDiff = 3.3V,
ΔIAdj / Load Adjustment Current Change -5.0 5.0 µA 2, 3
IL= 10mA to 500mA
VDiff = 40V, -5.0 5.0 µA 1, 2, 3
IL= 10mA to 100mA
3V ≤VDiff ≤40V -5.0 5.0 µA 1
ΔIAdj / Line Adjustment Current Change 3.3V ≤VDiff ≤40V -5.0 5.0 µA 2, 3
IOS Short Circuit Current VDiff = 10V 0.45 1.6 A 1
TA= 25°C, t = 20mS,
θRThermal Regulation -6.0 6.0 mV 1
VDiff = 40V, IL= 75mA
VDiff ≤15V See(1) 0.5 A 1, 2, 3
ICL Current Limit VDiff = 40V See(1) 0.15 A 1
(1) Specified parameter, not tested.
LM117E Electrical Characteristics
AC Parameters Sub-
Symbol Parameter Conditions Notes Min Max Unit groups
VI= +6.25V, VO= VRef,
RR Ripple Rejection ƒ= 120Hz, eI= 1VRMS, See(1) 66 dB 4, 5, 6
IL= 100mA, CAdj = 10µf
(1) Tested @ 25°C; specified, but not tested @ 125°C & −55°C
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LM117H & LM117WG RH Electrical Characteristics
DC Parameters(1)(2)
Symbol Parameter Conditions Notes Min Max Unit Sub-
groups
VI= 4.25V, IL= -5mA 1.2 1.3 V 1, 2, 3
VI= 4.25V, IL= -500mA 1.2 1.3 V 1, 2, 3
VOOutput Voltage VI= 41.25V, IL= -5mA 1.2 1.3 V 1, 2, 3
VI= 41.25V, IL= -50mA 1.2 1.3 V 1, 2, 3
4.25V ≤VI≤41.25V, -9.0 9.0 mV 1
VRLine Line Regulation IL= -5mA -23 23 mV 2,3
VI= 6.25V, -12 12 mV 1, 2, 3
-500mA ≤IL≤-5mA
VRLoad Load Regulation VI= 41.25V, -12 12 mV 1, 2, 3
-50mA ≤IL≤-5mA
VRTh Thermal Regulation VI= 14.6V, IL= -500mA -12 12 mV 1
VI= 4.25V, IL= -5mA -100 -15 µA 1, 2, 3
IAdj Adjust Pin Current VI= 41.25V, IL= -5mA -100 -15 µA 1, 2, 3
4.25V ≤VI≤41.25V,
ΔIAdj/ Line Adjust Pin Current Change -5.0 5.0 µA 1, 2, 3
IL= -5mA
VI= 6.25V,
ΔIAdj / Load Adjust Pin Current Change -5.0 5.0 µA 1, 2, 3
-500mA ≤IL≤-5mA
VI= 4.25V, -3.0 -0.5 mA 1, 2, 3
Forced VO= 1.4V
VI= 14.25V,
IQMinimum Load Current -3.0 -0.5 mA 1, 2, 3
Forced VO= 1.4V
VI= 41.25V, -5.0 -1.0 mA 1, 2, 3
Forced VO= 1.4V
VI= 4.25V -1.8 -0.5 A 1, 2, 3
IOS Output Short Circuit Current VI= 40V -0.5 -0.05 A 1, 2, 3
VI= 4.25V, RL= 2.5Ω,1.2 1.3 V 1, 2, 3
CL= 20µF
VO(Recov) Output Voltage Recovery VI= 40V, RL= 250Ω1.2 1.3 V 1, 2, 3
VOOutput Voltage VI= 6.25V, IL= -5mA See(3) 1.2 1.3 V 2
VI= 4.25V, RL= 2.5Ω,
VStart Voltage Start-Up 1.2 1.3 V 1, 2, 3
CL= 20µF, IL= -500mA
(1) Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the "Post
Radiation Limits" table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect.
Radiation end point limits for the noted parameters are ensured only for the conditions as specified in Mil-Std-883, Method 1019.5,
Condition A.
(2) Low dose rate testing has been performed on a wafer-by-wafer basis, per test method 1019 condition D of MIL-STD-883, with no
enhanced low dose rate sensitivity (ELDRS) effect.
(3) Tested @ TA= 125°C, correlated to TA= 150°C
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LM117H & LM117WG RH Electrical Characteristics
AC Parameters(1)(2)
Symbol Parameter Conditions Notes Min Max Unit Sub -
groups
VNO Output Noise Voltage VI= 6.25V, IL= -50mA 120 µVRMS 7
VI= 6.25V, ΔVI= 3V,
ΔVO/ΔVILine Transient Response 6.0 mV/V 7
IL= -10mA
VI= 6.25V, ΔIL= -200mA,
ΔVO/ΔILLoad Transient Response 0.6 mV/mA 7
IL= -50mA
VI= 6.25V, IL= -125mA,
ΔVI/ΔVORipple Rejection 65 dB 4
EI= 1VRMS at ƒ = 2400Hz
(1) Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the "Post
Radiation Limits" table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect.
Radiation end point limits for the noted parameters are ensured only for the conditions as specified in Mil-Std-883, Method 1019.5,
Condition A.
(2) Low dose rate testing has been performed on a wafer-by-wafer basis, per test method 1019 condition D of MIL-STD-883, with no
enhanced low dose rate sensitivity (ELDRS) effect.
LM117H & LM117WG RH Electrical Characteristics
DC Drift Parameters
The following conditions apply, unless otherwise specified.
Deltas performed on QMLV devices at Group B, Subgroup 5, only.
Symbol Parameter Conditions Notes Min Max Unit Sub-
groups
VI= 4.25V, IL= -5mA -0.01 0.01 V 1
VI= 4.25V, IL= -500mA -0.01 0.01 V 1
VOOutput Voltage VI= 41.25V, IL= -5mA -0.01 0.01 V 1
VI= 41.25V, IL= -50mA -0.01 0.01 V 1
4.25V ≤VI≤41.25V,
VRLine Line Regulation -4.0 4.0 mV 1
IL= -5mA
IAdj Adjust Pin Current VI= 4.25V, IL= -5mA -10 10 µA 1
VI= 41.25V, IL= -5mA -10 10 µA 1
VI= 4.25V, RL= 2.5Ω,-0.01 0.01 V 1
CL= 20µf
VO(Recov) Output Voltage Recovery VI= 40V, RL= 250Ω-0.01 0.01 V 1
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LM117H & LM117WG RH Electrical Characteristics
AC/DC Post Radiation Limits @ +25°C(1)(2)
Symbol Parameter Conditions Notes Min Max Unit Sub-
groups
VI= 4.25V, IL= -5mA 1.2 1.35 V 1
0
VI= 4.25V, IL= -500mA 1.2 1.35 V 1
0
VOOutput Voltage VI= 41.25V, IL= -5mA 1.2 1.35 V 1
0
VI= 41.25V, IL= -50mA 1.2 1.35 V 1
0
4.25V ≤VI≤41.25V,
VRLine Line Regulation -25 25 mV 1
IL= -5mA
VI= 6.25V, IL= -125mA
ΔVI/ΔVORipple Rejection 60 dB 4
EI= 1VRMS at f = 2400Hz
VI= 4.25V, RL= 2.5Ω, 1.35
1.20 V 1
CL= 20µf 0
VO(Recov) Output Voltage Recovery VI= 40V, RL= 250Ω1.35
1.20 V 1
0
(1) Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the "Post
Radiation Limits" table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect.
Radiation end point limits for the noted parameters are ensured only for the conditions as specified in Mil-Std-883, Method 1019.5,
Condition A.
(2) Low dose rate testing has been performed on a wafer-by-wafer basis, per test method 1019 condition D of MIL-STD-883, with no
enhanced low dose rate sensitivity (ELDRS) effect.
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LM117K RH Electrical Characteristics
DC Parameters(1)
Symbol Parameter Conditions Notes Min Max Unit Sub-
groups
VI= 4.25V, IL= -5mA 1.2 1.3 V 1, 2, 3
VI= 4.25V, IL= -1.5A 1.2 1.3 V 1, 2, 3
VOOutput Voltage VI= 41.25V, IL= -5mA 1.2 1.3 V 1, 2, 3
VI= 41.25V, IL= -200mA 1.2 1.3 V 1, 2, 3
4.25V ≤VI≤41.25V, -9.0 9.0 mV 1
VRLine Line Regulation IL= -5mA -23 23 mV 2,3
VI= 6.25V, -3.5 3.5 mV 1
-1.5A ≤IL≤-5mA -12 12 mV 2, 3
VRLoad Load Regulation VI= 41.25V, -3.5 3.5 mV 1
-200mA ≤IL≤-5mA -12 12 mV 2, 3
VRTh Thermal Regulation VI= 14.6V, IL= -1.5A -12 12 mV 1
VI= 4.25V, IL= -5mA -100 -15 µA 1, 2, 3
IAdj Adjust Pin Current VI= 41.25V, IL= -5mA -100 -15 µA 1, 2, 3
4.25V ≤VI≤41.25V,
ΔIAdj/ Line Adjust Pin Current Change -5.0 5.0 µA 1, 2, 3
IL= -5mA
VI= 6.25V,
ΔIAdj / Load Adjust Pin Current Change -5.0 5.0 µA 1, 2, 3
-1.5A ≤IL≤-5mA
VI= 4.25V, -3.0 -0.2 mA 1, 2, 3
Forced VO= 1.4V
VI= 14.25V,
IQMinimum Load Current -3.0 -0.2 mA 1, 2, 3
Forced VO= 1.4V
VI= 41.25V, -5.0 -0.2 mA 1, 2, 3
Forced VO= 1.4V
VI= 4.25V -3.5 -1.5 A 1, 2, 3
IOS Output Short Circuit Current VI= 40V -1.0 -0.18 A 1, 2, 3
VI= 4.25V, RL= 0.833Ω,1.2 1.3 V 1, 2, 3
CL= 20µF
VO(Recov) Output Voltage Recovery VI= 40V, RL= 250Ω1.2 1.3 V 1, 2, 3
VOOutput Voltage VI= 6.25V, IL= -5mA See(2) 1.2 1.3 V 2
VI= 4.25V, RL= 0.833Ω,
VStart Voltage Start-Up 1.2 1.3 V 1, 2, 3
CL= 20µF, IL= -1.5A
(1) Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the "Post
Radiation Limits" table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect.
Radiation end point limits for the noted parameters are ensured only for the conditions as specified in Mil-Std-883, Method 1019.5,
Condition A.
(2) Tested @ TA= 125°C, correlated to TA= 150°C
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LM117K RH Electrical Characteristics
AC Parameters(1)
Symbol Parameter Conditions Notes Min Max Unit Sub-
groups
VNO Output Noise Voltage VI= 6.25V, IL= -100mA 120 µVRMS 7
VI= 6.25V, ΔVI= 3V,
ΔVO/ΔVILine Transient Response See(2) 18 mV 7
IL= -10mA
VI= 6.25V, ΔIL= -400mA,
ΔVO/ΔILLoad Transient Response See(3) 120 mV 7
IL= -100mA
VI= 6.25V, IL= -500mA,
ΔVI/ΔVORipple Rejection 65 dB 4
EI= 1VRMS at ƒ = 2400Hz
(1) Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the "Post
Radiation Limits" table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect.
Radiation end point limits for the noted parameters are ensured only for the conditions as specified in Mil-Std-883, Method 1019.5,
Condition A.
(2) SMD limit of 6mV/V is equivalent to 18mV
(3) SMD limit of 0.3mV/V is equivalent to 120mV
LM117K RH Electrical Characteristics
DC Drift Parameters
The following conditions apply, unless otherwise specified.
Deltas performed on QMLV devices at Group B, Subgroup 5, only.
Symbol Parameter Conditions Notes Min Max Unit Sub-
groups
VI= 4.25V, IL= -5mA -0.01 0.01 V 1
VI= 4.25V, IL= -1.5A -0.01 0.01 V 1
VOOutput Voltage VI= 41.25V, IL= -5mA -0.01 0.01 V 1
VI= 41.25V, IL= -200mA -0.01 0.01 V 1
4.25V ≤VI≤41.25V,
VRLine Line Regulation -4.0 4.0 mV 1
IL= -5mA
VI= 4.25V, IL= -5mA -10 10 µA 1
IAdj Adjust Pin Current VI= 41.25V, IL= -5mA -10 10 µA 1
VI= 4.25V, RL= 0.833Ω,-0.01 0.01 V 1
CL= 20µS
VO(Recov) Output Voltage Recovery VI= 40V, RL= 250Ω-0.01 0.01 V 1
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LM117K RH Electrical Characteristics
AC/DC Post Radiation Limits @ +25°C(1)
Symbol Parameter Conditions Notes Min Max Unit Sub-
groups
VI= 4.25V, IL= -5mA 1.35
1.2 V 1
0
VI= 4.25V, IL= -1.5A 1.35
1.2 V 1
0
VOOutput Voltage VI= 41.25V, IL= -5mA 1.35
1.2 V 1
0
VI= 41.25V, IL= -200mA 1.35
1.2 V 1
0
4.25V ≤VI≤41.25V,
VRLine Line Regulation -25 25 mV 1
IL= -5mA
VI= 6.25V, -7.0 7.0 mV 1
-1.5A ≤IL≤-5mA
VRLoad Load Regulation VI= 41.25V, -7.0 7.0 mV 1
-200mA ≤IL≤-5mA
VI= 6.25V, IL= -500mA
ΔVI/ΔVORipple Rejection 60 dB 4
EI= 1VRMS at f = 2400Hz
VI= 4.25V, RL= 0.833Ω, 1.35
1.20 V 1
CL= 20µS 0
VO(Recov) Output Voltage Recovery VI= 40V, RL= 250Ω1.20 1.35 V 1
0
(1) Pre and post irradiation limits are identical to those listed under AC and DC electrical characteristics except as listed in the "Post
Radiation Limits" table. These parts may be dose rate sensitive in a space environment and demonstrate enhanced low dose rate effect.
Radiation end point limits for the noted parameters are ensured only for the conditions as specified in Mil-Std-883, Method 1019.5,
Condition A.
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Typical Performance Characteristics
Output Capacitor = 0μF unless otherwise noted
Load Regulation Current Limit
Figure 5. Figure 6.
Adjustment Current Dropout Voltage
Figure 7. Figure 8.
Temperature Stability Minimum Operating Current
Figure 9. Figure 10.
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Typical Performance Characteristics (continued)
Output Capacitor = 0μF unless otherwise noted
Ripple Rejection Ripple Rejection
Figure 11. Figure 12.
Ripple Rejection Output Impedance
Figure 13. Figure 14.
Line Transient Response Load Transient Response
Figure 15. Figure 16.
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APPLICATION HINTS
In operation, the LM117 develops a nominal 1.25V reference voltage, VREF, between the output and adjustment
terminal. The reference voltage is impressed across program resistor R1 and, since the voltage is constant, a
constant current I1then flows through the output set resistor R2, giving an output voltage of
(1)
Since the 100μA current from the adjustment terminal represents an error term, the LM117 was designed to
minimize IADJ and make it very constant with line and load changes. To do this, all quiescent operating current is
returned to the output establishing a minimum load current requirement. If there is insufficient load on the output,
the output will rise.
EXTERNAL CAPACITORS
An input bypass capacitor is recommended. A 0.1μF disc or 1μF solid tantalum on the input is suitable input
bypassing for almost all applications. The device is more sensitive to the absence of input bypassing when
adjustment or output capacitors are used but the above values will eliminate the possibility of problems.
The adjustment terminal can be bypassed to ground on the LM117 to improve ripple rejection. This bypass
capacitor prevents ripple from being amplified as the output voltage is increased. With a 10μF bypass capacitor
80dB ripple rejection is obtainable at any output level. Increases over 10μF do not appreciably improve the ripple
rejection at frequencies above 120Hz. If the bypass capacitor is used, it is sometimes necessary to include
protection diodes to prevent the capacitor from discharging through internal low current paths and damaging the
device.
In general, the best type of capacitors to use is solid tantalum. Solid tantalum capacitors have low impedance
even at high frequencies. Depending upon capacitor construction, it takes about 25μF in aluminum electrolytic to
equal 1μF solid tantalum at high frequencies. Ceramic capacitors are also good at high frequencies; but some
types have a large decrease in capacitance at frequencies around 0.5MHz. For this reason, 0.01μF disc may
seem to work better than a 0.1μF disc as a bypass.
Although the LM117 is stable with no output capacitors, like any feedback circuit, certain values of external
capacitance can cause excessive ringing. This occurs with values between 500 pF and 5000 pF. A 1μF solid
tantalum (or 25μF aluminum electrolytic) on the output swamps this effect and insures stability. Any increase of
the load capacitance larger than 10μF will merely improve the loop stability and output impedance.
LOAD REGULATION
The LM117 is capable of providing extremely good load regulation but a few precautions are needed to obtain
maximum performance. The current set resistor connected between the adjustment terminal and the output
terminal (usually 240Ω) should be tied directly to the output (case) of the regulator rather than near the load. This
eliminates line drops from appearing effectively in series with the reference and degrading regulation. For
example, a 15V regulator with 0.05Ωresistance between the regulator and load will have a load regulation due to
line resistance of 0.05Ω× IL. If the set resistor is connected near the load the effective line resistance will be
0.05Ω(1 + R2/R1) or in this case, 11.5 times worse.
Figure 17 shows the effect of resistance between the regulator and 240Ωset resistor.
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Figure 17. Regulator with Line Resistance in Output Lead
With the TO package, it is easy to minimize the resistance from the case to the set resistor, by using two
separate leads to the case. However, with the PFM package, care should be taken to minimize the wire length of
the output lead. The ground of R2 can be returned near the ground of the load to provide remote ground sensing
and improve load regulation.
PROTECTION DIODES
When external capacitors are used with any IC regulator it is sometimes necessary to add protection diodes to
prevent the capacitors from discharging through low current points into the regulator. Most 10μF capacitors have
low enough internal series resistance to deliver 20A spikes when shorted. Although the surge is short, there is
enough energy to damage parts of the IC.
When an output capacitor is connected to a regulator and the input is shorted, the output capacitor will discharge
into the output of the regulator. The discharge current depends on the value of the capacitor, the output voltage
of the regulator, and the rate of decrease of VIN. In the LM117, this discharge path is through a large junction that
is able to sustain 15A surge with no problem. This is not true of other types of positive regulators. For output
capacitors of 25μF or less, there is no need to use diodes.
The bypass capacitor on the adjustment terminal can discharge through a low current junction. Discharge occurs
when either the input or output is shorted. Internal to the LM117 is a 50Ωresistor which limits the peak discharge
current. No protection is needed for output voltages of 25V or less and 10μF capacitance. Figure 18 shows an
LM117 with protection diodes included for use with outputs greater than 25V and high values of output
capacitance.
D1 protects against C1
D2 protects against C2
Figure 18. Regulator with Protection Diodes
When a value for θ(H−A) is found using the equation shown, a heatsink must be selected that has a value that is
less than or equal to this number.
θ(H−A) is specified numerically by the heatsink manufacturer in the catalog, or shown in a curve that plots
temperature rise vs power dissipation for the heatsink.
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Typical Applications
*Min. output ≊1.2V
Figure 19. 5V Logic Regulator with Electronic Shutdown*
Figure 20. Slow Turn-On 15V Regulator
†Solid tantalum
*Discharges C1 if output is shorted to ground
Figure 21. Adjustable Regulator with Improved Ripple Rejection
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Figure 22. High Stability 10V Regulator
‡Optional—improves ripple rejection
†Solid tantalum
*Minimum load current = 30 mA
Figure 23. High Current Adjustable Regulator
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Full output current not available at high input-output voltages
Figure 24. 0 to 30V Regulator
Figure 25. Power Follower
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†Solid tantalum
*Lights in constant current mode
Figure 26. 5A Constant Voltage/Constant Current Regulator
Figure 27. 1A Current Regulator
*Minimum load current ≊4 mA
Figure 28. 1.2V–20V Regulator with Minimum Program Current
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Figure 29. High Gain Amplifier
†Solid tantalum
*Core—Arnold A-254168-2 60 turns
Figure 30. Low Cost 3A Switching Regulator
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†Solid tantalum
*Core—Arnold A-254168-2 60 turns
Figure 31. 4A Switching Regulator with Overload Protection
Figure 32. Precision Current Limiter
Figure 33. Tracking Preregulator
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(Compared to LM117's higher current limit)
—At 50 mA output only ¾ volt of drop occurs in R3and R4
Figure 34. Current Limited Voltage Regulator
*All outputs within ±100 mV
†Minimum load—10 mA
Figure 35. Adjusting Multiple On-Card Regulators with Single Control*
Figure 36. AC Voltage Regulator
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Use of RSallows low charging rates with fully charged battery.
Figure 37. 12V Battery Charger
Figure 38. 50mA Constant Current Battery Charger
Figure 39. Adjustable 4A Regulator
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Full output current not available at high input-output voltages
*Needed if device is more than 6 inches from filter capacitors.
†Optional—improves transient response. Output capacitors in the range of 1μF to 1000μF of aluminum or tantalum
electrolytic are commonly used to provide improved output impedance and rejection of transients.
Figure 40. 1.2V–25V Adjustable Regulator
*Sets peak current (0.6A for 1Ω)
**The 1000μF is recommended to filter out input transients
Figure 41. Current Limited 6V Charger
*Sets maximum VOUT
Figure 42. Digitally Selected Outputs
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REVISION HISTORY
Date Released Revision Section Changes
03/17/06 A New Release to corporate format 5 MDS data sheets were consolidated into one
corporate data sheet format. Clarified ΔIAdj/ Line
versus ΔIAdj/ Load by separating the parameters in all
of the tables. MNLM117–K Rev 1C1, MNLM117–X
Rev 0A0, MNLM117–E Rev 0B1, MRLM117–X-RH
Rev 2A0, MRLM117–K-RH Rev 3A0 will be archived.
06/29/06 B Features, Ordering Information Table, Rad Deleted NSID LM117WGRQML, no longer available.
Hard Electrical Section for PFM and CFP Added Available with Radiation Ensured, Low Dose
packages and Notes NSID's to table 5962R9951705VXA
LM117HRLQMLV, 5962R9951705VZA
LM117WGRLQMLV, and reference to Note 11 and
12. Note 12 to Rad Hard Electrical Heading for PFM
and CFP packages. Note 12 to Notes. Archive
Revision A.
11/30/2010 C Features, Ordering Table, Absolute Ratings, Added radiation info., Update with current device
LM117H, WG and K RH Drift Electrical Table information and format, T0–39 Pkg weight, Vo
(Recov). Revision B will be Archived.
09/06/2011 D Ordering Information, Absolute Ratings Order Info: Added 'GW' NSIDS and SMD numbers.
Abs Max Ratings: Added 'GW' Theta JA and Theta JC
along with 'GW' weight. Revision C will be Archived.
Deleted Ordering Information table.
04/17/2013 D Changed layout of National Data Sheet to TI format.
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PACKAGE OPTION ADDENDUM
www.ti.com 16-Apr-2013
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish MSL Peak Temp
(3)
Op Temp (°C) Top-Side Markings
(4)
Samples
5962R9951703V9A ACTIVE DIESALE Y 0 42 Green (RoHS
& no Sb/Br) Call TI Level-1-NA-UNLIM -55 to 125
5962R9951703VXA ACTIVE TO NDT 3 20 TBD Call TI Call TI -55 to 125 LM117HRQMLV
5962R9951703VXA Q
ACO
5962R9951703VXA Q
>T
5962R9951704VYA ACTIVE TO K 2 50 TBD Call TI Call TI -55 to 125 LM117KRQMLV
5962R99517
04VYA Q ACO
04VYA Q >T
5962R9951705V9A ACTIVE DIESALE Y 0 42 Green (RoHS
& no Sb/Br) Call TI Level-1-NA-UNLIM -55 to 125
5962R9951705VXA ACTIVE TO NDT 3 20 TBD Call TI Call TI -55 to 125 LM117HRLQMLV
5962R9951705VXA Q
ACO
5962R9951705VXA Q
>T
5962R9951706VZA ACTIVE CFP NAC 16 42 TBD Call TI Call TI -55 to 125 LM117GWR
QMLV Q
5962R99517
06VZA ACO
06VZA >T
5962R9951707VZA ACTIVE CFP NAC 16 42 TBD Call TI Call TI -55 to 125 LM117GWRL
QMLV Q
5962R99517
07VZA ACO
07VZA >T
LM117E/883 ACTIVE LCCC NAJ 20 50 TBD Call TI Call TI -55 to 125 LM117E
/883 Q ACO
/883 Q >T
LM117GW/883 ACTIVE CFP NAC 16 42 TBD Call TI Call TI LM117GW
/883 Q ACO
/883 Q >T
LM117GWRLQMLV ACTIVE CFP NAC 16 42 TBD Call TI Call TI -55 to 125 LM117GWRL
QMLV Q
5962R99517
PACKAGE OPTION ADDENDUM
www.ti.com 16-Apr-2013
Addendum-Page 2
Orderable Device Status
(1)
Package Type Package
Drawing Pins Package
Qty Eco Plan
(2)
Lead/Ball Finish MSL Peak Temp
(3)
Op Temp (°C) Top-Side Markings
(4)
Samples
07VZA ACO
07VZA >T
LM117GWRQMLV ACTIVE CFP NAC 16 42 TBD Call TI Call TI -55 to 125 LM117GWR
QMLV Q
5962R99517
06VZA ACO
06VZA >T
LM117H MDE ACTIVE DIESALE Y 0 42 Green (RoHS
& no Sb/Br) Call TI Level-1-NA-UNLIM -55 to 125
LM117H MDR ACTIVE DIESALE Y 0 42 Green (RoHS
& no Sb/Br) Call TI Level-1-NA-UNLIM -55 to 125
LM117H/883 ACTIVE TO NDT 3 20 TBD Call TI Call TI -55 to 125 LM117H/883 Q ACO
LM117H/883 Q >T
LM117HRLQMLV ACTIVE TO NDT 3 20 TBD Call TI Call TI -55 to 125 LM117HRLQMLV
5962R9951705VXA Q
ACO
5962R9951705VXA Q
>T
LM117HRQMLV ACTIVE TO NDT 3 20 TBD Call TI Call TI -55 to 125 LM117HRQMLV
5962R9951703VXA Q
ACO
5962R9951703VXA Q
>T
LM117K/883 ACTIVE TO K 2 50 TBD Call TI Call TI -55 to 125 LM117K
/883 Q ACO
/883 Q >T
LM117KRQMLV ACTIVE TO K 2 50 TBD Call TI Call TI -55 to 125 LM117KRQMLV
5962R99517
04VYA Q ACO
04VYA Q >T
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
PACKAGE OPTION ADDENDUM
www.ti.com 16-Apr-2013
Addendum-Page 3
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a
continuation of the previous line and the two combined represent the entire Top-Side Marking for that device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF LM117QML, LM117QML-SP :
•Military: LM117QML
•Space: LM117QML-SP
NOTE: Qualified Version Definitions:
•Military - QML certified for Military and Defense Applications
•Space - Radiation tolerant, ceramic packaging and qualified for use in Space-based application
MECHANICAL DATA
NAJ0020A
www.ti.com
E20A (Rev F)
MECHANICAL DATA
NAC0016A
www.ti.com
WG16A (RevG)
K0002C
MECHANICAL DATA
www.ti.com
4214774/A 03/2013
K02C (Rev E)
NOTES:
1. All linear dimensions are in millimeters. Dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M.
2. This drawing is subject to change without notice.
3. Leads not to be bent greater than 15º
MECHANICAL DATA
NDT0003A
www.ti.com
H03A (Rev D)
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