Order this document by MC33269/D
8
1
8
7
6
5
1
2
3
4
Gnd/Adj
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SOP–8)
800 mA
LOW DROPOUT
THREE–TERMINAL
VOLTAGE REGULATORS
DT SUFFIX
PLASTIC PACKAGE
CASE 369A
(DPAK)
Vin
NC
NC
1. Gnd/Adj
123 2. Vout
3. Vin
(Top View)
(Top View)
1
3
Vout Vout
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
Heatsink surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
Pin: 1. Gnd/Adj
2. Vout
3. Vin
T SUFFIX
PLASTIC PACKAGE
CASE 221A
3
12
123
(Top View)
ST SUFFIX
PLASTIC PACKAGE
CASE 318E
(SOT–223)
13
1
MOTOROLA ANALOG IC DEVICE DATA
The MC33269 series are low dropout, medium current, fixed and
adjustable, positive voltage regulators specifically designed for use in low
input voltage applications. These devices offer the circuit designer an
economical solution for precision voltage regulation, while keeping power
losses to a minimum.
The regulator consists of a 1.0 V dropout composite PNP–NPN pass
transistor, current limiting, and thermal shutdown.
•3.3 V, 5.0 V, 12 V and Adjustable Versions
•Space Saving DPAK, SOP–8 and SOT–223 Power Packages
•1.0 V Dropout
•Output Current in Excess of 800 mA
•Thermal Protection
•Short Circuit Protection
•Output Trimmed to 1.0% Tolerance
•No Minimum Load Requirement for Fixed Voltage Output Devices
ORDERING INFORMATION
Device Operating
Temperature Range Package
MC33269D
T40°125°C
SOP–8
MC33269DT
T40°125°C
DPAK
MC33269ST
T40°125°C
SOT–223
MC33269T
T40°125°C
Insertion Mount
MC33269D–3.3
T40°125°C
SOP–8
MC33269DT–3.3
T40°125°C
DPAK
MC33269ST–3.3
T40°125°C
SOT–223
MC33269T–3.3
TJ=–40
°
to +125
°
C
Insertion Mount
MC33269D–5.0
T
J = –
40°
t
o +
125°C
SOP–8
MC33269DT–5.0 DPAK
MC33269T–5.0 Insertion Mount
MC33269ST–5.0 SOT–223
MC33269D–12 SOP–8
MC33269DT–12 DPAK
MC33269T–12 Insertion Mount
MC33269ST–12 SOT–223
DEVICE TYPE/NOMINAL OUTPUT VOLTAGE
MC33269D Adj MC33269D–5.0 5.0 V
MC33269DT Adj MC33269DT–5.0 5.0 V
MC33269T Adj MC33269T–5.0 5.0 V
MC33269ST Adj MC33269ST–5.0 5.0 V
MC33269D–3.3 3.3 V MC33269D–12 12 V
MC33269DT–3.3 3.3 V MC33269DT–12 12 V
MC33269T–3.3 3.3 V MC33269T–12 12 V
MC33269ST–3.3 3.3 V MC33269ST–12 12 V
This document contains information on a new product. Specifications and information herein
are subject to change without notice. Motorola, Inc. 1997 Rev 4
MC33269
2MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
Rating Symbol Value Unit
Power Supply Input Voltage Vin 20 V
Power Dissipation
Case 369A (DPAK)
TA = 25°C PDInternally Limited W
Thermal Resistance, Junction–to–Ambient θJA 92 °C/W
Thermal Resistance, Junction–to–Case θJC 6.0 °C/W
Case 751 (SOP–8)
TA = 25°C PDInternally Limited W
Thermal Resistance, Junction–to–Ambient θJA 160 °C/W
Thermal Resistance, Junction–to–Case θJC 25 °C/W
Case 221A
TA = 25°C PDInternally Limited W
Thermal Resistance, Junction–to–Ambient θJA 65 °C/W
Thermal Resistance, Junction–to–Case θJC 5.0 °C/W
Case 318E
TA = 25°C PDInternally Limited W
Thermal Resistance, Junction–to–Ambient θJA 245 °C/W
Thermal Resistance, Junction–to–Case θJC 15 °C/W
Operating Junction Temperature Range TJ–40 to +150 °C
Storage Temperature Tstg –55 to +150 °C
NOTE: ESD data available upon request.
ELECTRICAL CHARACTERISTICS (CO = 10 µF, TA = 25°C, for min/max values TJ = –40°C to +125°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
Output Voltage (Iout = 10 mA, TJ = 25°C) VOV
3.3 Suffix (VCC = 5.3 V) 3.27 3.3 3.33
5.0 Suffix (VCC = 7.0 V) 4.95 5.0 5.05
12 Suf fix (V CC = 14 V) 11.88 12 12.12
Output Voltage (Line, Load and Temperature) (Note 1) VOV
(1.25 V ≤ Vin – Vout ≤ 15 V, Iout = 500 mA)
(1.35 V ≤ Vin – Vout ≤ 10 V, Iout = 800 mA)
3.3 Suffix 3.23 3.3 3.37
5.0 Suffix 4.9 5.0 5.1
12 Suffix 11.76 12 12.24
Reference Voltage (Iout = 10 mA, Vin – Vout = 2.0 V, TJ = 25°C) Vref 1.235 1.25 1.265 V
Adjustable
Reference Voltage (Line, Load and Temperature) (Note 1) V ref 1.225 1.25 1.275 V
(1.25 V ≤ Vin – Vout ≤ 15 V, Iout = 500 mA)
(1.35 V ≤ Vin – Vout ≤ 10 V, Iout = 800 mA)
Adjustable
Line Regulation Regline – – 0.3 %
(Iout = 10 mA, Vin = [Vout + 1.5 V] to Vin = 20 V, TJ = 25°C)
Load Regulation (Vin = Vout + 3.0 V, Iout = 10 mA to 800 mA, TJ = 25°C) Regload – – 0.5 %
Dropout Voltage Vin –V
out V
(Iout = 500 mA) – 1.0 1.25
(Iout = 800 mA) – 1.1 1.35
Ripple Rejection RR 55 – – dB
(10 Vpp, 120 Hz Sinewave; Iout = 500 mA)
Current Limit (Vin – Vout = 10 V) ILimit 800 – – mA
Quiescent Current (Fixed Output) IQ– 5.5 8.0 mA
Minimum Required Load Current ILoad mA
Fixed Output – – 0
Adjustable 8.0 – –
Adjustment Pin Current IAdj – – 120 µA
NOTE 1: The MC33269–12, Vin – Vout is limited to 8.0 V maximum, because of the 20 V maximum rating applied to Vin.
MC33269
3
MOTOROLA ANALOG IC DEVICE DATA
VAdj Gnd
Trim Links
Internal Schematic
This device contains 38 active transistors.
MC33269
4MOTOROLA ANALOG IC DEVICE DATA
IO, OUTPUT LOAD CURRENT (mA)
in
Vout
–V
Figure 1. Dropout Voltage versus
Output Load Current
1.5
1.3
1.1
0.9
0.7
0.5 0 200 400 600 800 1000
Figure 2. Transient Load Regulation
, DROPOUT VOLTAGE (V)
20 ms/DIV
Cin = 10
µ
F
CO = 10
µ
F Tantalum
Vin = VO + 3.0 V
Preload = 0.1 A
0 A
0.5 A
100
, OUTPUTIOVO, OUTPUT
∆
VOLTAGE DEVIATIONCURRENT
TA = 25
°
CTA = –40
°
C
TA = 125
°
C
mV/Div
–55
900 –25 0 25 50 75 100 125
940
980
1020
1060
1100
Figure 3. Dropout Voltage
versus Temperature Figure 4. MC33269–XX Output DC Current versus
Input–Output Differential Voltage
V
TA, AMBIENT TEMPERATURE (
°
C)
IO = 800 mA
, OVERVOLTAGE INPUT THRESHOLD (%V )
FB(OV) FB
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
02.0 4.0 6.0 8.0 10 12 14 16
INPUT–OUTPUT VOLT AGE DIFFERENTIAL (V)
TA = 25
°
C
MC33269D–XX
L = 25 mm Copper
OUTPUT CURRENT (A)
70
0.1 1.0 10 100
60
50
40
30
20
Figure 5. MC33269 Ripple Rejection
versus Frequency Figure 6. MC33269–ADJ Ripple Rejection
versus Frequency
RR, RIPPLE REJECTION RATIO (dB)
f, FREQUENCY (kHz)
20
30
40
50
60
70
RR, RIPPLE REJECTION RATIO (dB)
100101.0f, FREQUENCY (kHz)
Vin = 8.0 V
Vout = 5.0 V
IL = 800 mA
CAdj = 22
µ
F
TA = 25
°
C
0.1
Vin = VO + 3.0 V
IL = 800 mA
TA = 25
°
C
VO = 12 V
VO = 3.3 V or 5.0 V
MC33269
5
MOTOROLA ANALOG IC DEVICE DATA
ÏÏÏ
ÏÏÏ
ÏÏÏ
R , THERMAL RESISTANCE
JA
θ
JUNCTION-T O-AIR ( C/W)
°
40
80
120
160
200
240
280
0.35
0.42
0.50
0.63
0.83
1.25
2.50
010203025155.0
L, LENGTH OF COPPER (mm)
PD(max) for TA = 50
°
C
Minimum
Size Pad
PD
L
L
, MAXIMUM POWER DISSIPATION (W)
Free Air
Mounted
Vertically
R
θ
JA
2.0 oz. Copper
Figure 7. SOT–223 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
ÏÏÏ
ÏÏÏ
ÏÏÏ
Figure 8. SOP–8 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
R , THERMAL RESISTANCE,
JA
θ
JUNCTION–T O–AIR ( C/W)
°
R
θ
JA
ÏÏÏ
ÏÏÏ
ÏÏÏ
ÏÏÏ
ÏÏÏ
2.0 oz.
Copper
Graph represents symmetrical layout
3.0 mmL
L
PD(max) for TA = 50
°
C
30
50
70
90
110
130
150
170
L, LENGTH OF COPPER (mm)
02030504010 0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
R , THERMAL RESISTANCE,
JA
θ
JUNCTION–T O–AIR ( C/W)
°
Figure 9. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
PD
L
ÏÏÏ
ÏÏÏ
ÏÏÏ
ÏÏÏ
, MAXIMUM POWER DISSIPATION (W)
2.0 oz. Copper
R
θ
JA
Minimum
Size Pad
Free Air
Mounted
Vertically
PD(max) for TA = 50
°
C
L
40
50
60
70
80
90
100
010203025155.0
L, LENGTH OF COPPER (mm)
0
0.4
0.8
1.2
1.6
2.0
2.4
MC33269
6MOTOROLA ANALOG IC DEVICE DATA
APPLICATIONS INFORMATION
Figures 10 through 14 are typical application circuits. The
output current capability of the regulator is in excess of
800 mA, with a typical dropout voltage of less than 1.0 V.
Internal protective features include current and thermal
limiting.
The MC33269 is not internally compensated and thus
requires an external output capacitor for stability. The
capacitor should be at least 10 µF with an equivalent series
resistance (ESR) of less than 10 Ω over the anticipated
operating temperature range. With economical electrolytic
capacitors, cold temperature operation can pose a problem.
As temperature decreases, the capacitance also decreases
and the ESR increases, which could cause the circuit to
oscillate. Solid tantalum capacitors may be a better choice if
small size is a requirement. Also capacitance and ESR of a
solid tantalum capacitor is more stable over temperature. An
input bypass capacitor is recommended to improve transient
response or if the regulator is connected to the supply input
filter with long wire lengths. This will reduce the circuit’s
sensitivity to the input line impedance at high frequencies. A
0.33 µF or larger tantalum, mylar , ceramic, or other capacitor
having low internal impedance at high frequencies should be
chosen. The bypass capacitor should be mounted with
shortest possible lead or track length directly across the
regulator’s input terminals. Applications should be tested
over all operating conditions to insure stability.
Internal thermal limiting circuitry is provided to protect the
integrated circuit in the event that the maximum junction
temperature is exceeded. When activated, typically at 170°C,
the output is disabled. There is no hysteresis built into the
thermal limiting circuit. As a result, if the device is
overheating, the output will appear to be oscillating. This
feature is provided to prevent catastrophic failures from
accidental device overheating. It is not intended to be used
as a substitute for proper heatsinking.
Figure 10. Typical Fixed Output Application
MC33269–XX
Vin Vout
Gnd
CO
10
µ
F
An input capacitor is not necessary for stability, however
it will improve the overall performance.
Figure 11. Typical Adjustable Output Application
MC33269
Vin Vout
Adj CO
10
µ
F
CAdj*
R1
R2
*CAdj is optional, however it will improve the ripple rejection.
The MC34269 develops a 1.25 V reference voltage between the
output and the adjust terminal. Resistor R1, operates with
constant current to flow through it and resistor R2. This current
should be set such that the Adjust Pin current causes negligible
drop across resistor R2. The total current with minimum load
should be greater than 8.0 mA.
Figure 12. Current Regulator
MC33269
Vin Iout
Adj
RS
Iout
+
Figure 13. Battery Backed–Up Power Supply
MC33269–XX
Vin Vout
MC33269–XX
Gnd
CO
10
µ
F
Figure 14. Digitally Controlled Voltage Regulator
MC33269
Vin Vout
Adj CO
10
µ
F
R1
R2
R2 sets the maximum output voltage. Each transistor
reduces the output voltage when turned on.
The Schottky diode in series with the ground leg of the upper
regulator shifts its output voltage higher by the forward
voltage drop of the diode. This will cause the lower device
to remain off until the input voltage is removed.
Vout
+
1.25
ǒ
1
)
R2
R1
Ǔ)
IAdj R2
1.25
RS
Cin Cin
Cin CO
10
µ
F
Cin
Cin
Gnd
Cin
MC33269
7
MOTOROLA ANALOG IC DEVICE DATA
D SUFFIX
PLASTIC PACKAGE
CASE 751–05
(SOP–8)
ISSUE R
OUTLINE DIMENSIONS
DT SUFFIX
PLASTIC PACKAGE
CASE 369A–13
(DPAK)
ISSUE Y
SEATING
PLANE
14
58
A0.25 MCBSS
0.25 MBM
h
q
C
X 45
_
L
DIM MIN MAX
MILLIMETERS
A1.35 1.75
A1 0.10 0.25
B0.35 0.49
C0.18 0.25
D4.80 5.00
E1.27 BSCe3.80 4.00
H5.80 6.20
h
0 7
L0.40 1.25
q
0.25 0.50
__
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. DIMENSIONS ARE IN MILLIMETERS.
3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
D
EH
A
Be
B
A1
CA
0.10
D
A
K
B
R
V
S
FL
G
2 PL
M
0.13 (0.005) T
E
C
U
J
H
–T–
SEATING
PLANE
Z
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.235 0.250 5.97 6.35
B0.250 0.265 6.35 6.73
C0.086 0.094 2.19 2.38
D0.027 0.035 0.69 0.88
E0.033 0.040 0.84 1.01
F0.037 0.047 0.94 1.19
G0.180 BSC 4.58 BSC
H0.034 0.040 0.87 1.01
J0.018 0.023 0.46 0.58
K0.102 0.114 2.60 2.89
L0.090 BSC 2.29 BSC
R0.175 0.215 4.45 5.46
S0.020 0.050 0.51 1.27
U0.020 ––– 0.51 –––
V0.030 0.050 0.77 1.27
Z0.138 ––– 3.51 –––
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
123
4
MC33269
8MOTOROLA ANALOG IC DEVICE DATA
ST SUFFIX
PLASTIC PACKAGE
CASE 318E–04
ISSUE H
(SOT–223)
T SUFFIX
PLASTIC PACKAGE
CASE 221A–06
ISSUE Y
OUTLINE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION Z DEFINES A ZONE WHERE ALL
BODY AND LEAD IRREGULARITIES ARE
ALLOWED.
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.570 0.620 14.48 15.75
B0.380 0.405 9.66 10.28
C0.160 0.190 4.07 4.82
D0.025 0.035 0.64 0.88
F0.142 0.147 3.61 3.73
G0.095 0.105 2.42 2.66
H0.110 0.155 2.80 3.93
J0.018 0.025 0.46 0.64
K0.500 0.562 12.70 14.27
L0.045 0.060 1.15 1.52
N0.190 0.210 4.83 5.33
Q0.100 0.120 2.54 3.04
R0.080 0.110 2.04 2.79
S0.045 0.055 1.15 1.39
T0.235 0.255 5.97 6.47
U0.000 0.050 0.00 1.27
V0.045 ––– 1.15 –––
Z––– 0.080 ––– 2.04
B
Q
H
Z
L
V
G
N
A
K
F
123
4
D
SEATING
PLANE
–T–
C
S
T
U
R
J
H
S
F
A
B
D
G
L
4
123
0.08 (0003)
C
MK
J
DIM
AMIN MAX MIN MAX
MILLIMETERS
0.249 0.263 6.30 6.70
INCHES
B0.130 0.145 3.30 3.70
C0.060 0.068 1.50 1.75
D0.024 0.035 0.60 0.89
F0.115 0.126 2.90 3.20
G0.087 0.094 2.20 2.40
H0.0008 0.0040 0.020 0.100
J0.009 0.014 0.24 0.35
K0.060 0.078 1.50 2.00
L0.033 0.041 0.85 1.05
M0 10 0 10
S0.264 0.287 6.70 7.30
NOTES:
1 DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2 CONTROLLING DIMENSION: INCH.
____
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Af firmative Action Employer . Mfax is a trademark of Motorola, Inc.
How to reach us:
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◊MC33269/D
