Datasheet MC33269T, MC33269ST-3.3, MC33269ST, MC33269ST-12, MC33269DT-3.3 Datasheet (Motorola)

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)

V

in

NC

NC

1. Gnd/Adj

123

2. V

out

3. V

in

(Top View)

(Top View)

1

3

V

out

V

out

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. V

out

3. V

in

T SUFFIX

PLASTIC PACKAGE

CASE 221A

3

1

2

123

(Top View)

ST SUFFIX

PLASTIC PACKAGE

CASE 318E

(SOT–223)

1

3

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

SOP–8

MC33269DT

DPAK

MC33269ST

SOT–223

MC33269T

Insertion Mount

MC33269D–3.3

SOP–8

MC33269DT–3.3

DPAK

MC33269ST–3.3

SOT–223

MC33269T–3.3

°

°

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

2

MOTOROLA ANALOG IC DEVICE DATA

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Input Voltage V

in

20 V

Power Dissipation

Case 369A (DPAK)

TA = 25°C P

D

Internally Limited W

Thermal Resistance, Junction–to–Ambient θ

JA

92 °C/W

Thermal Resistance, Junction–to–Case θ

JC

6.0 °C/W

Case 751 (SOP–8)

TA = 25°C P

D

Internally Limited W

Thermal Resistance, Junction–to–Ambient θ

JA

160 °C/W

Thermal Resistance, Junction–to–Case θ

JC

25 °C/W

Case 221A

TA = 25°C P

D

Internally Limited W

Thermal Resistance, Junction–to–Ambient θ

JA

65 °C/W

Thermal Resistance, Junction–to–Case θ

JC

5.0 °C/W

Case 318E

TA = 25°C P

D

Internally Limited W

Thermal Resistance, Junction–to–Ambient θ

JA

245 °C/W

Thermal Resistance, Junction–to–Case θ

JC

15 °C/W

Operating Junction Temperature Range T

J

–40 to +150 °C

Storage Temperature T

stg

–55 to +150 °C

NOTE: ESD data available upon request.

ELECTRICAL CHARACTERISTICS (C

O

= 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 (I

out

= 10 mA, TJ = 25°C) V

O

V

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 Suffix (VCC = 14 V) 11.88 12 12.12

Output Voltage (Line, Load and Temperature) (Note 1) V

O

V

(1.25 V ≤ Vin – V

out

≤ 15 V , I

out

= 500 mA)

(1.35 V ≤ Vin – V

out

≤ 10 V , I

out

= 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 (I

out

= 10 mA, Vin – V

out

= 2.0 V , TJ = 25°C) V

ref

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 – V

out

≤ 15 V , I

out

= 500 mA)

(1.35 V ≤ Vin – V

out

≤ 10 V , I

out

= 800 mA)

Adjustable

Line Regulation Reg

line

– – 0.3 %

(I

out

= 10 mA, Vin = [V

out

+ 1.5 V] to Vin = 20 V, TJ = 25°C)

Load Regulation (Vin = V

out

+ 3.0 V , I

out

= 10 mA to 800 mA, TJ = 25°C) Reg

load

– – 0.5 %

Dropout Voltage Vin–V

out

V

(I

out

= 500 mA) – 1.0 1.25

(I

out

= 800 mA) – 1.1 1.35

Ripple Rejection RR 55 – – dB

(10 Vpp, 120 Hz Sinewave; I

out

= 500 mA)

Current Limit (Vin – V

out

= 10 V) I

Limit

800 – – mA

Quiescent Current (Fixed Output) I

Q

– 5.5 8.0 mA

Minimum Required Load Current I

Load

mA
Fixed Output – – 0
Adjustable 8.0 – –

Adjustment Pin Current I

Adj

– – 120 µA

NOTE 1: The MC33269–12, Vin – V

out

is limited to 8.0 V maximum, because of the 20 V maximum rating applied to Vin.

MC33269

3

MOTOROLA ANALOG IC DEVICE DATA

V

Adj Gnd

Trim Links

Internal Schematic

This device contains 38 active transistors.

MC33269

4

MOTOROLA ANALOG IC DEVICE DATA

IO, OUTPUT LOAD CURRENT (mA)

in

V

out

–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 µF
CO = 10

µ

F Tantalum
Vin = VO + 3.0 V
Preload = 0.1 A

0 A

0.5 A

100

, OUTPUTI

O

V

O

, OUTPUT

∆

VOLTAGE DEVIATIONCURRENT

TA = 25°C

TA = –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

, OVERVOL TAGE INPUT THRESHOLD (%V )

FB(OV) FB

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

2.0 4.0 6.0 8.0 10 12 14 16
INPUT–OUTPUT VOLTAGE 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)

100101.0

f, FREQUENCY (kHz)

Vin = 8.0 V
V

out

= 5.0 V
IL = 800 mA
C

Adj

= 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

R , THERMAL RESISTANCE

JA

θ

JUNCTION-TO-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)

P

D(max)

for TA = 50°C

Minimum
Size Pad

P

D

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

Figure 8. SOP–8 Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

R , THERMAL RESIST ANCE,

JA

θ

JUNCTION–TO–AIR ( C/W)

°

R

θ

JA

2.0 oz.

Copper

Graph represents symmetrical layout

3.0 mmL

L

P

D(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 RESIST ANCE,

JA

θ

JUNCTION–TO–AIR ( C/W)

°

Figure 9. DPAK Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

P

D

L

, MAXIMUM POWER DISSIPATION (W)

2.0 oz. Copper

R

θ

JA

Minimum
Size Pad

Free Air

Mounted

Vertically

P

D(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

6

MOTOROLA 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

V

in

V

out

Gnd

C

O

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

V

in

V

out

Adj

C

O

10

µ

F

C

Adj

*

R1

R2

*C

Adj

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

V

in

I

out

Adj

R

S

I

out

+

Figure 13. Battery Backed–Up Power Supply

MC33269–XX

V

in

V

out

MC33269–XX

Gnd

C

O

10 µF

Figure 14. Digitally Controlled Voltage Regulator

MC33269

V

in

V

out

Adj

C

O

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.

V

out

+

1.25ǒ1

)

R2
R1

Ǔ

)

I

Adj

R2

1.25
R

S

C

in

C

in

C

in

C

O

10

µ

F

C

in

C

in

Gnd

C

in

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

1

4

58

A0.25MCB

SS

0.25MB

M

h

q

C

X 45

_

L

DIM MIN MAX

MILLIMETERS

A 1.35 1.75

A1 0.10 0.25

B 0.35 0.49
C 0.18 0.25
D 4.80 5.00
E

1.27 BSCe

3.80 4.00

H 5.80 6.20
h

0 7

L 0.40 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

E

H

A

B

e

B

A1

C

A

0.10

D

A

K

B

R

V

S

F

L

G

2 PL

M

0.13 (0.005) T

E

C

U

J

H

–T–

SEATING
PLANE

Z

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A 0.235 0.250 5.97 6.35
B 0.250 0.265 6.35 6.73
C 0.086 0.094 2.19 2.38
D 0.027 0.035 0.69 0.88
E 0.033 0.040 0.84 1.01
F 0.037 0.047 0.94 1.19
G 0.180 BSC 4.58 BSC
H 0.034 0.040 0.87 1.01
J 0.018 0.023 0.46 0.58
K 0.102 0.114 2.60 2.89
L 0.090 BSC 2.29 BSC
R 0.175 0.215 4.45 5.46
S 0.020 0.050 0.51 1.27
U 0.020 ––– 0.51 –––
V 0.030 0.050 0.77 1.27
Z 0.138 ––– 3.51 –––

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

2. CONTROLLING DIMENSION: INCH.

123

4

MC33269

8

MOTOROLA 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

A 0.570 0.620 14.48 15.75
B 0.380 0.405 9.66 10.28
C 0.160 0.190 4.07 4.82
D 0.025 0.035 0.64 0.88
F 0.142 0.147 3.61 3.73
G 0.095 0.105 2.42 2.66
H 0.110 0.155 2.80 3.93
J 0.018 0.025 0.46 0.64
K 0.500 0.562 12.70 14.27
L 0.045 0.060 1.15 1.52
N 0.190 0.210 4.83 5.33
Q 0.100 0.120 2.54 3.04
R 0.080 0.110 2.04 2.79
S 0.045 0.055 1.15 1.39
T 0.235 0.255 5.97 6.47
U 0.000 0.050 0.00 1.27
V 0.045 ––– 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

M

K

J

DIMAMIN MAX MIN MAX

MILLIMETERS

0.249 0.263 6.30 6.70

INCHES

B 0.130 0.145 3.30 3.70
C 0.060 0.068 1.50 1.75
D 0.024 0.035 0.60 0.89

F 0.115 0.126 2.90 3.20
G 0.087 0.094 2.20 2.40
H 0.0008 0.0040 0.020 0.100
J 0.009 0.014 0.24 0.35
K 0.060 0.078 1.50 2.00
L 0.033 0.041 0.85 1.05
M 0 10 0 10
S 0.264 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. “T ypical” 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/Affirmative Action Employer.

Mfax is a trademark of Motorola, Inc.

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◊

MC33269/D