General Description
The MAX15006/MAX15007 ultra-low quiescent-current
linear regulators are ideal for use in automotive and
battery-operated systems. These devices operate from an
input voltage of 4V to 40V, deliver up to 50mA of output
current, and consume only 10μA of quiescent current at
no load. The internal p-channel pass device keeps the
quiescent current low even at full load. The MAX15007
consumes only 3μA current when in shutdown.
The MAX15006A/MAX15007A have a fixed 3.3V output
while the MAX15006B/MAX15007B have a fixed 5V
output voltage. The MAX15006C/MAX15007C feature
an adjustable output from 1.8V to 10V. The MAX15007
includes an enable input to turn the device on or off. All
devices are short-circuit protected and include thermal
shutdown.
The MAX15006/MAX15007 operate over the -40°C to
+125°C automotive temperature range. These devices
are available in space-saving 3mm x 3mm 6-pin TDFN
and 8-pin SO thermally enhanced packages.
Applications
●Automotive
●Tire-Pressure Monitoring
●Industrial
●Telecom
●Networking
Features
●Wide Operating Input Voltage Range (4V to 40V)
●Guaranteed 50mA Output Current
●Low Quiescent Current
10μA (No Load) and 90μA (Full Load)
●Operates Through Cold-Crank Condition
●Withstands 45V Load Dump
●Low Dropout Voltage of 300mV
(MAX15006B/MAX15007B)
● Stable Operation with Tiny 2.2μF Output Capacitor
●Enable Input (MAX15007)
●Preset 3.3V and 5.0V Output Voltages
●1.8V to 10V Adjustable Output (MAX15006C/
MAX15007C)
●Thermal and Short-Circuit Protection
●-40°C to +125°C Operating Temperature Range
●Thermally Enhanced 3mm x 3mm 6-Pin TDFN/
8-Pin SO Packages
Ordering Information continued at end of data sheet.
19-0663; Rev 8; 3/15
Pin Configurations continued at end of data sheet.
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
*EP = Exposed pad.
PART TEMP RANGE PIN-
PACKAGE
TOP
MARK
MAX15006AASA+ -40°C to +125°C 8 SO-EP* —
MAX15006AASA/V+ -40°C to +125°C 8 SO-EP* —
MAX15006AATT+ -40°C to +125°C 6 TDFN-EP* APE
MAX15006AATT/V+ -40°C to +125°C 6 TDFN-EP* AUR
IN
OUT GND
N.C.IN
OUT (FB)
MAX15006A
MAX15006B
MAX15006C
123
EP
654
TDFN
+
+
TOP VIEW
N.C.
GND
EP
N.C.
1
2
8
7
OUT
N.C. (FB)N.C.
N.C.
IN
( ) FOR MAX15006C ONLY.
SO
3
4
6
5
MAX15006A
MAX15006B
MAX15006C
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
Pin Congurations
Ordering Information
IN to GND .............................................................. -0.3V to +45V
EN to GND ............................................................-0.3V to +45V
OUT, FB to GND ...................................................-0.3V to +12V
OUT Short-Circuit Duration .......................................Continuous
Maximum Current Into Any Pin (except IN and OUT) ......±50mA
Continuous Power Dissipation (TA = +70°C)
TDFN (derate 23.8mW/°C above +70°C) .................. 1904mW
SO (derate 18.90mW/°C above +70°C) ...............1509.40mW
Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ...................................................... +150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) ....................................... +260°C
TDFN
Junction-to-Ambient Thermal Resistance (θJA) ..........42°C/W
Junction-to-Case Thermal Resistance (θJC) .................9°C/W
SO
Junction-to-Ambient Thermal Resistance (θJA) ..........53°C/W
Junction-to-Case Thermal Resistance (θJC) .................7°C/W
(Note 1)
(VIN = 14V, IOUT = 1mA, CIN = 0.1μF, COUT = 2.2μF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical specifications are a
TA = +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Voltage Range VIN 4 40 V
Ground Current IGND
Regulator on,
measured at GND
IOUT = 0A (MAX15006A/B/D) 10 17
µA
IOUT = 0A (MAX15006C) 8 15
IOUT = 0A (MAX15007A/B) 11 18
IOUT = 0A (MAX15007C) 916
IOUT = 100µA (MAX15006A/
B/D) 10.5 18
IOUT = 100µA (MAX15006C) 8.5 16
IOUT = 100µA (MAX15007A/B) 11.5 19
IOUT = 100µA (MAX15007C) 9.5 17
IOUT = 1mA (MAX15006A/B/D) 12 20
IOUT = 1mA (MAX15006C) 10 18
IOUT = 1mA (MAX15007A/B) 13 21
IOUT = 1mA (MAX15007C) 11 19
IOUT = 50mA (MAX15006) 90 150
IOUT = 50mA (MAX15007) 93 150
IOUT = 60mA (MAX15006D) 110 150
Shutdown Supply Current ISHDN Regulator o󰀨 (MAX15007 only) 3 5 µA
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Thermal Characteristics
Electrical Characteristics
(VIN = 14V, IOUT = 1mA, CIN = 0.1μF, COUT = 2.2μF, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical specifications are a
TA = +25°C.) (Note 2)
Note 2: Limits at TA = -40°C are guaranteed by design.
Note 3: Output voltage regulation is guaranteed for IOUT ≥ 5μA.
Note 4: Dropout voltage is defined as (VIN - VOUT) when VOUT is 2% below the value of VOUT when VIN = VOUT + 3V.
Note 5: For VOUT = 3.3V, the 700mV dropout indicates VOUT does not reach 2% below VOUT at VIN = VOUT + 3V at minimum 4V
input voltage.
Note 6: Enable to regulation time is the time the output takes to reach 95% of its final value with VIN = 14V and EN is taken from
VIL to VIH in 5ns.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
REGULATOR
Guaranteed Output Current IOUT
VIN ≥ VOUT + ∆VDO 50 mA
VIN ≥ VOUT + ∆VDO (MAX15006D only) 60
Output Voltage (Note 3) VOUT IOUT = 1mA
MAX15006A/D, MAX15007A 3.25 3.3 3.35
VMAX15006B/MAX15007B 4.925 5.0 5.075
MAX15006C/MAX15007C 1.8 10
Dropout Voltage (Notes 4, 5) ∆VDO
IOUT = 5mA, MAX15006B/MAX15007B 30 53
mV
IOUT = 5mA, MAX15006C/MAX15007C 30 60
IOUT = 50mA, MAX15006B/MAX15007B 300 525
IOUT = 50mA, MAX15006C/MAX15007C 300 600
IOUT = 50mA, MAX15006A/MAX15007A 1000
IOUT = 60mA, MAX15006D 1000
Line Regulation 6V ≤ VIN ≤ 35V, IOUT = 1mA 0.25 %
Load Regulation
VIN = VOUT + 3V, IOUT = 100µA to 50mA 0.7 1.5
%
VIN = VOUT + 3V, IOUT = 100µA to 60mA
(MAX15006D) 0.7 1.5
Output Current Limit 80 350 mA
Output Voltage Noise 100Hz to 100kHz, IOUT =
50mA, COUT = 2.2µF
VOUT = 3.3V 115 µVRMS
VOUT = 5V 179
Power-Supply Rejection Ratio PSRR f = 100Hz, VIN_RIPPLE = 500mVP-P, IOUT = 50mA 66 dB
FB Threshold Voltage VFB ILOAD = 1mA (MAX15006C/MAX15007C only) 1.2 1.23 1.26 V
FB Input Current IFB VFB = 0V, 1.5V (MAX15006C/MAX15007C only) -100 +100 nA
ENABLE LOGIC
Enable Threshold Voltage VIL 0.4 V
VIH 1.4
Enable Threshold Hysteresis 60 mV
Enable Pulldown Current Internally pulled down to GND 0.5 µA
Enable to Regulation Time (Note 6) 0.4 2 ms
THERMAL SHUTDOWN
Thermal Shutdown TSHDN Junction temperature rising +165 °C
Thermal Shutdown Hysteresis THYST 20 °C
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Electrical Characteristics (continued)
(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
(MAX15006B/MAX15007B)
MAX15006 toc02
VIN (V)
VOUT (V)
353020 2510 155
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
0 40
IOUT = 0
OUTPUT VOLTAGE vs. TEMPERATURE
(MAX15006A/MAX15007A)
MAX15006 toc03
TEMPERATURE (°C)
V
OUT
(V)
12510050 750 25-25
3.18
3.21
3.24
3.27
3.30
3.33
3.36
3.39
3.42
3.45
3.15
-50 150
IOUT = 50mA
IOUT = 1mA
OUTPUT VOLTAGE vs. TEMPERATURE
(MAX15006B/MAX15007B)
MAX15006 toc04
TEMPERATURE (°C)
V
OUT
(V)
12510050 750 25-25
4.80
4.85
4.90
4.95
5.00
5.05
5.10
5.15
5.20
5.25
4.75
-50 150
IOUT = 50mA
IOUT = 1mA
DROPOUT VOLTAGE vs. LOAD CURRENT
(MAX15006B/MAX15007B)
MAX15006 toc05
I
OUT
(mA)
VDROPOUT (mV)
3530 454020 2510 155
50
100
150
200
250
300
350
400
450
500
0
0 50
TA = +125C
TA = +25C
TA = -40C
GROUND CURRENT vs. LOAD CURRENT
(MAX15006B/MAX15007B)
MAX15006 toc06
I
OUT
(mA)
I
GND
(µA)
3530 454020 2510 155
10
20
30
40
50
60
70
80
90
100
0
0 50
TA = +125°C
TA = +25°C
TA = -40°C
GROUND CURRENT vs. TEMPERATURE
(IOUT = 0)
MAX15006 toc07
TEMPERATURE (°C)
I
GND
(µA)
12510050 750 25-25
2
4
6
8
10
12
14
16
18
0
-50 150
VIN = +6V
VIN = +14V
VIN = +40V
OUTPUT VOLTAGE vs. INPUT VOLTAGE
(MAX15006A/MAX15007A)
MAX15006 toc01
VIN (V)
VOUT (V)
353020 2510 155
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3.3
3.0
3.6
0
0 40
IOUT = 0
GROUND CURRENT vs. TEMPERATURE
(IOUT = 50mA)
MAX15006 toc08
TEMPERATURE (°C)
IGND (µA)
12510050 750 25-25
91
92
93
94
95
96
97
98
99
100
90
-50 150
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX15006 toc09
TEMPERATURE (°C)
I
SHDN
(µA)
12510050 750 25-25
1
2
3
4
5
6
7
8
9
10
0
-50 150
VIN = +40V
VIN = +14V
VIN = +6V
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Typical Operating Characteristics
(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA = +25°C, unless otherwise noted.)
GROUND CURRENT DISTRIBUTION
(TA = -40°C)
MAX15006 toc10
IGND (µA)
NUMBER OF UNITS
10.910.8
10.7
10.6
10.5
3
6
9
12
15
18
21
24
27
0
10.4 11.0
MAX15007, IOUT = 0
50 UNITS TESTED
GROUND CURRENT DISTRIBUTION
(TA = +25°C)
MAX15006 toc11
IGND (µA)
NUMBER OF UNITS
11.311.2
11.1
11.0
10.9
3
6
9
12
15
18
21
24
27
0
10.8 11.4
MAX15007, IOUT = 0
50 UNITS TESTED
GROUND CURRENT DISTRIBUTION
(TA = +125°C)
MAX15006 toc12
IGND (µA)
NUMBER OF UNITS
12.0
11.9
11.8
11.7
3
6
9
12
15
18
21
24
27
0
11.6 12.1
MAX15007, IOUT = 0
50 UNITS TESTED
LOAD-TRANSIENT RESPONSE
(MAX15006B/MAX15007B)
MAX15006 toc13
400µs/div
VOUT
AC-COUPLED
200mV/div
50mA
IOUT
1mA
INPUT-VOLTAGE STEP RESPONSE
(MAX15006B/MAX15007B, IOUT = 1mA)
MAX15006 toc14
400µs/div
18V
VIN
14V
VOUT
AC-COUPLED
100mV/div
STARTUP RESPONSE
MAX15006 toc15
200µs/div
VIN
5V/div
VOUT
2V/div
MAX15006B/MAX15007B
IOUT = 1mA
ENABLE STARTUP RESPONSE
MAX15006 toc16
400µs/div
EN
1V/div
VOUT
2V/div
MAX15006B/MAX15007B
IOUT = 0
ENABLE STARTUP RESPONSE
MAX15006 toc17
400µs/div
EN
1V/div
VOUT
2V/div
MAX15006B/MAX15007B
IOUT = 50mA
ENABLE STARTUP RESPONSE
MAX15006 toc18
400µs/div
EN
1V/div
VOUT
2V/div
MAX15006B/MAX15007B
VIN = 40V, IOUT = 0
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Typical Operating Characteristics (continued)
(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA = +25°C, unless otherwise noted.)
ENABLE STARTUP RESPONSE
MAX15006 toc19
400µs/div
EN
1V/div
VOUT
2V/div
MAX15006B/MAX15007B
VIN = 40V, IOUT = 50mA
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX15006 toc20
FREQUENCY (kHz)
PSRR (dB)
1001 100.1
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
0.01 1000
IOUT = 50mA
COUT = 2.2µF
COUT = 10µF
OUTPUT-NOISE SPECTRAL DENSITY
vs. FREQUENCY
MAX15006 toc21
FREQUENCY (kHz)
OUTPUT-NOISE SPECTRAL DENSITY (µV/√Hz)
1 100.1
0.1
1
10
0.01
0.01 100
MAX15006A/MAX15007A
IOUT = 50mA
OUTPUT-NOISE SPECTRAL DENSITY
vs. FREQUENCY
MAX15006 toc22
FREQUENCY (kHz)
1 100.1
0.1
1
10
0.01
0.01 100
MAX15006B/MAX15007B
IOUT = 50mA
OUTPUT-NOISE SPECTRAL DENSITY (µV/
√Hz)
OUTPUT VOLTAGE NOISE
vs. LOAD CURRENT
MAX15006 toc23
IOUT (mA)
en (µVRMS)
403525 301510 205
15
30
45
60
75
90
105
120
135
150
0
0 5045
MAX15006A/MAX15007A
FB VOLTAGE vs. INPUT VOLTAGE
(MAX15007C, VOUT = 5V)
MAX15006 toc24
VIN (V)
VFB (V)
353025201510
1.226
1.227
1.228
1.229
1.230
1.225
5 40
FB VOLTAGE vs. TEMPERATURE
(MAX15007C, VOUT = 5V)
MAX15006 toc25
TEMPERATURE (°C)
VFB (V)
12510050 750 25-25
1.221
1.222
1.223
1.224
1.225
1.226
1.227
1.228
1.229
1.230
1.220
-50 150
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Typical Operating Characteristics (continued)
(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA = +25°C, unless otherwise noted.)
PIN
NAME FUNCTIONMAX15006A/B MAX15006C MAX15007A/B MAX15007C
TDFN SO TDFN SO TDFN SO TDFN SO
1, 2 1 1, 2 1 1, 2 1 1, 2 1 IN
Regulator Supply Input. Supply voltage ranges
from 4V to 40V. Bypass with a 0.1µF capacitor
to GND.
32, 3,
4, 6, 7 32, 3,
4, 6 —2, 4,
6, 7 — 2, 4, 6 N.C. No Connection. Not internally connected.
4 5 4 5 4 5 4 5 GND Ground
5, 6 8 6 8 5, 6 8 6 8 OUT Regulator Output. Bypass OUT to GND with a
low-ESR capacitor with a minimum 2.2µF.
— — 5 7 — — 5 7 FB
Feedback Regulation Set-Point. Connect an
external resistive divider network from OUT to FB
to GND to adjust the output voltage from 1.8V to
10V.
— — — — 3 3 3 3 EN
Active-High Enable Input. Force EN high (or
connect to VIN) to turn the regulator on. Pull EN
low (or leave unconnected) to place the device
in a low-power shutdown mode. EN is internally
pulled down to GND through a 0.5µA sink
current.
— — — — — — — — EP
Exposed Pad. Internally connected to GND.
Connect EP to the ground plane for enhanced
thermal performance. Do not use EP as a ground
connection.
OUTPUT VOLTAGE NOISE
vs. OUTPUT CAPACITANCE
MAX15006 toc26
COUT (µF)
en (µVRMS)
14128 104 62
15
30
45
60
75
90
105
120
135
150
0
0 221816 20
MAX15006A/MAX15007A
IOUT = 25mA
CLAMPED LOAD DUMP
(IOUT = 0)
MAX15006 toc27
100ms/div
40V
VIN
13.5V
VOUT
AC-COUPLED
20mV/div
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Typical Operating Characteristics (continued)
Pin Description
Figure 1. MAX15006 Simplified Functional Diagram
Figure 2. MAX15007 Simplified Functional Diagram
MAX15006
FET DRIVER
WITH
CURRENT LIMIT
THERMAL
SENSOR
1.242V
REF
ERROR
AMPLIFIER
+
-
OUT
FB
(FOR MAX15006C ONLY)
(FOR MAX15006A/B ONLY)
IN
GND
MAX15007
FET DRIVER
WITH
CURRENT LIMIT
THERMAL
SENSOR
CONTROL
LOGIC
1.242V
REF
ERROR
AMPLIFIER
+
-
OUT
IN
EN
GND
FB
(FOR MAX15007C ONLY)
(FOR MAX150076A/B ONLY)
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Functional Diagrams
Detailed Description
The MAX15006/MAX15007 high-voltage linear regula-
tors operate over a 4V to 40V input voltage range. These
devices guarantee 50mA load drive, and offer preset
output voltages of +3.3V (MAX15006A/MAX15007A) or
+5V (MAX15006B/MAX15007B) or an adjustable voltage
output from 1.8V to 10V (MAX15006C/MAX15007C).
Thermal shutdown and short-circuit protection prevent
damage during overtemperature and overcurrent condi-
tions. The MAX15007 includes an enable input (EN)
allowing the regulators to be turned on/off using a logic-
level voltage. Driving EN high turns on the device while
driving EN low places the device in a low-power shutdown
mode. In shutdown, the supply current is reduced to 3μA
(typ). The MAX15006/MAX15007 operate over the -40°C
to +125°C automotive temperature range. All devices are
available in thermally enhanced 6-pin TDFN and 8-pin SO
packages capable of dissipating 1.904W and 1.509W at
TA = +70°C, respectively.
Regulator
The regulator accepts an input voltage from 4V to 40V.
The MAX15006A/MAX15007A have a fixed 3.3V output
voltage while the MAX15006B/MAX15007B offer a fixed
5V output voltage. The MAX15006C/MAX15007C feature
an adjustable voltage output by connecting an external
resistive divider from OUT to FB and to GND (see the
Output Voltage Setting section).
EN Input (MAX15007 Only)
EN is an active-high, logic-level enable input that turns
the device on or off. Drive EN high to turn the device on.
An internal 0.5μA pulldown current keeps the MAX15007
in shutdown mode when driven by a three-state driver
in high-impedance mode, or an open-drain driver. While
in shutdown, the device consumes only 3μA (typ). EN
withstands voltages up to 40V, allowing it to be driven by
high input level voltages or connected to IN for always-on
operation.
Thermal Protection
When the junction temperature exceeds +165°C, an
internal thermal sensor turns the pass transistor off, and
allows the device to cool. The thermal sensor turns the
pass transistor on again after the junction temperature
cools by 20°C. This results in a cycled output during con-
tinuous thermal-overload conditions. Thermal protection
protects the MAX15006/MAX15007 in the event of fault
conditions. Operation at TJ = +150°C without going into
thermal shutdown is not guaranteed. Use Figures 3a and
3b to determine the minimum guaranteed output current.
Output Short-Circuit Current Limit
The MAX15006/MAX15007 feature a 175mA current limit.
The output can be shorted to GND for an indefinite period
of time without damage to the device. During a short
circuit, the power dissipated across the pass transistor
can quickly heat the device. When the die temperature
reaches +165°C, the MAX15006/MAX15007 shut down
and automatically restart after the die temperature cools
by 20°C.
Figure 3a. Minimum Output Current vs. Ambient Temperature
(6-Pin TDFN-EP)
Figure 3b. Minimum Output Current vs. Ambient Temperature
(8-Pin SO-EP)
MAX15006 fig03a
AMBIENT TEMPERATURE (°C)
125120110 11590 95 100 10585
5
10
15
20
25
30
35
40
45
50
55
0
80 130
VIN = 26V, VOUT = 5V
VIN = 18V, VOUT = 5V
VIN = 18V,
VOUT = 3.3V
VIN = 26V, VOUT = 3.3V
MAX15006 fig03b
AMBIENT TEMPERATURE (°C)
125120110 11590 95 100 10585
5
10
15
20
25
30
35
40
45
50
55
0
80 130
VIN = 26V, VOUT = 5V
VIN = 18V, VOUT = 5V
VIN = 18V,
VOUT = 3.3V
VIN = 26V, VOUT = 3.3V
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Applications Information
Output Voltage Setting
The MAX15006C/MAX15007C provide an adjustable
output voltage from 1.8V to 10V and do not operate in a
preset output voltage mode. Connect an external resis-
tive divider from OUT to FB to GND as shown in Figure 4
to set the desired output voltage. VOUT is calculated as
follows:
OUT FB
R1
V V1
R2

= ×+


where VFB = 1.23V and a 5μA minimum current is
required in the external divider for stability.
Available Output Current Calculation
The MAX15006/MAX15007 provide up to 50mA of con-
tinuous output current. The input voltage range extends
to 40V. Package power dissipation limits the amount of
output current available for a given input/output voltage
and ambient temperature. Figure 5 shows the maximum
allowable power dissipation for these devices to keep the
junction temperature below +150°C. Figure 5 assumes
that the exposed metal pad of the MAX15006/MAX15007
is soldered to 1in2 of PCB copper.
Use Figure 5 to determine the allowable package dissipa-
tion for a given ambient temperature. Alternately, use the
following formulas to calculate the allowable package dis-
sipation. For the TDFN package:
( )
A
D
AA
1.9048W for T 70 C
P W
1.9048W 0.0238 T – 70 C for 70 C T 125 C
C
≤+ °


=

− × ° + ° < ≤+ °

°

For the SO-EP package:
( )
A
D
AA
1.8605W for T 70 C
P W
1.8605W 0.0233 T – 70 C for 70 C T 125 C
C
≤+ °


=

− × ° + ° < ≤+ °

°

After determining the allowable package dissipation,
calculate the maximum allowable output current, without
exceeding the +150°C junction temperature, using the
following formula:
D
OUT(MAX) IN OUT
P
I 50mA
VV
= ≤
−
The above equations do not include the negligible power
dissipation from self-heating due to the IC ground current.
Example 1 (TDFN Package):
TA = +125°C
VIN = 26V
VOUT = 3.3V
Calculate the maximum allowable package dissipation at
the given temperature as follows:
( )
D
W
P 1.9048W 0.0238 125 C 70 C 595.8mW
C
= − °−°=
°
And establish the maximum output current:
OUT(MAX) 595.8mW
I 26.2mA
26V 3.3V
= =
−
Figure 4. Setting the Adjustable Output Voltage Figure 5. Calculated Maximum Power Dissipation vs. Ambient
Temperature
R1
2.2µF0.1µF
OFF
ON
+1.8V TO +10V
VOUT = VFB (1 + R1/R2)
VFB = 1.23V
+4V TO +40V
R2
IN
EN
GND
OUT
FB
MAX15007C
MAX15006 fig04
TEMPERATURE (°C)
PD (W)
140
120
100
40 60 80
20
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
0
0
1.9408W
(6-PIN TDFN)
1.8605W
(8-PIN SO-EP)
DERATE
23.8mW/C
DERATE
23.3mW/C
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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Example 2 (TDFN Package):
TA = +85°C
VIN = 14V
VOUT = 5V
Calculate the maximum allowable package dissipation at
the given temperature as follows:
( )
D
W
P 1.9048W 0.0238 85 C 70 C 1.5478W
C
= − °−°=
°
Then determine the maximum output current:
OUT(MAX)
OUT(MAX)
1.5478W
I 172mA I 50mA
14V 5V
==⇒=
−
Example 3 (TDFN Package):
TA = +50°C
VIN = 9V
VOUT = 5V
Calculate the maximum allowable package dissipation at
the given temperature as follows:
PD = 1.9048W
Find the maximum output current:
OUT(MAX)
OUT(MAX) 1.9048W
I 476mA I 50mA
9V 5V
==⇒=
−
In Examples 2 and 3, the maximum output current is cal-
culated as 172mA and 476mA, respectively; however, the
allowable output current cannot exceed 50mA.
Alternately, use Figures 6a and 6b to quickly determine
the maximum allowable output current for selected ambi-
ent temperatures and input voltages.
Output-Capacitor Selection
and Regulator Stability
For stable operation over the full temperature range and
with load currents up to 50mA, use a low-ESR 2.2μF (min)
ceramic or tantalum output capacitor. Use larger output-
capacitor values such as 22μF to reduce noise, improve
load-transient response, and power-supply rejection.
Some ceramic dielectrics exhibit large capacitance and
ESR variations with temperature. Ensure the minimum
capacitance under worst-case conditions does not drop
below 1.3μF to ensure output stability. With an X7R
dielectric, 2.2μF should be sufficient at all operating tem-
peratures.
Figure 6a. Calculated Maximum Output Current vs. Input
Voltage (6-Pin TDFN-EP)
Figure 6b. Calculated Maximum Output Current vs. Input
Voltage (8-Pin SO-EP)
MAX15006 fig05a
VIN (V)
IOUT(MAX) (mA)
353020 2510 155
5
10
15
20
25
30
35
40
45
50
55
60
0
0 40
TA = +85°C
TA = +70°C
TA = +125°C
VOUT = 5V
6-PIN TDFN
MAX15006 fig05b
VIN (V)
IOUT(MAX) (mA)
353020 2510 155
5
10
15
20
25
30
35
40
45
50
55
60
0
0 40
TA = +85°C
TA = +70°C
TA = +125°C
VOUT = 5V
8-PIN SO-EP
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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PART ENABLE INPUT FIXED OUTPUT
VOLTAGE (V)
ADJUSTABLE OUTPUT
VOLTAGE (V) PIN-PACKAGE
MAX15006AASA+ — 3.3 — 8 SO-EP
MAX15006AATT+ — 3.3 — 6 TDFN-EP
MAX15006BASA+ — 5 — 8 SO-EP
MAX15006BATT+ — 5 — 6 TDFN-EP
MAX15006CASA+ — — ADJ (1.8 to 10) 8 SO-EP
MAX15006CATT+ — — ADJ (1.8 to 10) 6 TDFN-EP
MAX15007AASA+ √3.3 — 8 SO-EP
MAX15007AATT+ √3.3 — 6 TDFN-EP
MAX15007BASA+ √5 — 8 SO-EP
MAX15007BATT+ √5 — 6 TDFN-EP
MAX15007CASA+ √— ADJ (1.8 to 10) 8 SO-EP
MAX15007CATT+ √— ADJ (1.8 to 10) 6 TDFN-EP
TOP VIEW
IN
OUT GND
ENIN
OUT (FB)
MAX15007A
MAX15007B
MAX15007C
123
654
TDFN
+
+
N.C.
GND
EP
EP N.C.
( ) FOR MAX15007C ONLY.
1
2
8
7
OUT
N.C. (FB)N.C.
EN
IN
SO
3
4
6
5
MAX15007A
MAX15007B
MAX15007C
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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│
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Selector Guide
Pin Congurations (continued)
+Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
*EP = Exposed pad.
PART TEMP RANGE PIN-
PACKAGE
TOP
MARK
MAX15006BASA+ -40°C to +125°C 8 SO-EP* —
MAX15006BASA/V+ -40°C to +125°C 8 SO-EP* —
MAX15006BATT+ -40°C to +125°C 6 TDFN-EP* APF
MAX15006BATT/V+ -40°C to +125°C 6 TDFN-EP* AUN
MAX15006CATT+ -40°C to +125°C 6 TDFN-EP* API
MAX15006CATT/V+ -40°C to +125°C 6 TDFN-EP* AVA
MAX15006DATT/V+ -40°C to +125°C 6 TDFN-EP* AVL
MAX15007AASA+ -40°C to +125°C 8 SO-EP* —
MAX15007AATT+ -40°C to +125°C 6 TDFN-EP* APG
MAX15007BASA+ -40°C to +125°C 8 SO-EP* —
MAX15007BATT+ -40°C to +125°C 6 TDFN-EP* APH
MAX15007BATT/V+ -40°C to +125°C 6 TDFN-EP* AVK
MAX15007CATT+ -40°C to +125°C 6 TDFN-EP* APJ
MAX15007CATT/V+ -40°C to +125°C 6 TDFN-EP* AUU
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
6 TDFN-EP T633+2 21-0137 90-0058
8 SO-EP S8E+12 21-0111 90-0150
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
www.maximintegrated.com Maxim Integrated
│
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Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages. Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
Chip Information
PROCESS: BiCMOS
Ordering Information (continued)
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 10/06 Initial release —
1 5/08 Added MAX15006C/MAX15007C adjustable version to data sheet including Ordering
Information, Electrical Characteristics, Pin Description, and Detailed Description 1–14
211/09 Added the MAX15006A/MAX15006B automotive packages to the Ordering Information 1, 13
3 12/10 Added the MAX15006CATT and MAX15007CATT automotive packages to the Ordering
Information 13
4 7/11 Added the MAX15006AASA and MAX15006BASA automotive packages to the Ordering
Information 1, 13
511/11 Changed the maximum IOUT = 50mA dropout of the MAX15006A/MAX15007A from
700mV to 1000mV 3
6 1/13 Added MAX15006DATT/V and MAX15007BATT/V 1–14
7 8/14 Corrected thermal resistance data in Package Thermal Characteristics section 2
8 3/15 Corrected continuous power dissipation for SO package in Absolute Maximum Ratings 2
8.1 Corrected typos in TOCs 6, 7, 8, and 9 4
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
MAX15006/MAX15007 40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
© 2015 Maxim Integrated Products, Inc.
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14
Revision History
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MAX15006DATT/V+T MAX15007BATT/V+T MAX15007AATT/V+T MAX15006CATT+ MAX15006BATT/V+
MAX15006BATT+ MAX15007CATT+ MAX15006CATT/V+ MAX15007CATT/V+ MAX15007BATT+ MAX15007AATT+
MAX15006DATT/V+ MAX15006AASA/V+ MAX15006AATT+ MAX15006AATT/V+