Datasheet MC33269ST-3.3T3, MC33269T, MC33269DTRK-3.3, MC33269DTRK-5.0, MC33269DT-3.3 Datasheet (MOTOROLA)

 Semiconductor Components Industries, LLC, 2000

April, 2000 – Rev. 8

1 Publication Order Number:

MC33269/D

MC33269

Low Dropout Positive Fixed
and Adjustable Voltage
Regulators

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.

2.85 V version available as MC34268.

• 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

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
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

TO–220AB

T SUFFIX

CASE 221A

http://onsemi.com

See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.

ORDERING INFORMATION

8

1

8
7
6

5

1
2
3
4

Gnd/Adj

SOP–8
D SUFFIX
CASE 751

DPAK

DT SUFFIX

CASE 369A

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

3

1

2

123

(Top View)

SOT–223

ST SUFFIX

CASE 318E

1

3

MC33269

http://onsemi.com

2

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

for Adjustable Voltage

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)

for Adjustable Voltage

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)

(1.5 V ≤ V

out

≤ 3.3 V)

(5 V ≤ V

out

≤ 12 V)

I

Q

–
–

5.5
–

8.0
20

mA

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

http://onsemi.com

3

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

Minimum Required Load Current I

Load

mA
Fixed Output Voltage – – 0
Adjustable Voltage 8.0 – –

Adjustment Pin Current I

Adj

– – 120 µA

V

in

V

out

V

Adj Gnd

Trim Links

Internal Schematic

This device contains 38 active transistors.

MC33269

http://onsemi.com

4

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

,

DR

O

P

O

U

T

VOLTAG

E

(V)

20 ms/DIV

Cin = 10 µF
CO = 10 µF 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

,

OV

ER

VOLTAG

E

IN

PU

T

T

HRESH

OL

D

(

%

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

,

R

I

PP

L

E REJE

CTION

R

ATIO

(d

B

)

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 µF

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

http://onsemi.com

5

R , THERMAL RESIST ANCE

JAθ

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

θJA

2.0 oz. Copper

Figure 7. SOP–8 Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

R

,

T

HERM

AL

RES

I

S

TANC

E

,

JAθ

JU

NCTION–TO–AI

R

(

C/

W

)

°

R

θJA

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 RESISTANCE,

JAθ

JUNCTION–TO–AIR ( C/W)°

Figure 8. DPAK Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

L

2.0 oz. Copper

R

θJA

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

Figure 9. SOT–223 Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

MC33269

http://onsemi.com

6

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 µF

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 µF

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 µF

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

+

1.25

ǒ

1

)

R2
R1

Ǔ

)

I

Adj

R2

1.25
R

S

C

in

C

in

C

in

C

O

10 µF

C

in

C

in

Gnd

C

in

MC33269

http://onsemi.com

7

ORDERING INFORMATION

Device Package Shipping Information

MC33269D SO–8 98 Units / Rail
MC33269DR2 SO–8 2500 Units / Tape & Reel
MC33269DT DPAK 75 Units / Rail
MC33269DTRK DPAK 2500 Units / Tape & Reel
MC33269T TO–220 50 Units / Rail
MC33269D–3.3 SO–8 98 Units / Rail
MC33269DR2–3.3 SO–8 2500 Units / Tape & Reel
MC33269DT–3.3 DPAK 75 Units / Rail
MC33269DTRK–3.3 DPAK 2500 Units / Tape & Reel
MC33269ST–3.3T3 SOT–223 4000 Units / Tape & Reel
MC33269T–3.3 TO–220 50 Units / Rail
MC33269D–5.0 SO–8 98 Units / Rail
MC33269DR2–5.0 SO–8 2500 Units / Tape & Reel
MC33269DT–5.0 DPAK 75 Units / Rail
MC33269DTRK–5.0 DPAK 2500 Units / Tape & Reel
MC33269T–5.0 TO–220 50 Units / Rail
MC33269D–12 SO–8 98 Units / Rail
MC33269DR2–12 SO–8 2500 Units / Tape & Reel
MC33269DT–12 DPAK 75 Units / Rail
MC33269DTRK–12 DPAK 2500 Units / Tape & Reel
MC33269T–12 TO–220 50 Units / Rail

MC33269

http://onsemi.com

8

P ACKAGE DIMENSIONS

SOP–8

D SUFFIX

CASE 751–06

ISSUE T

DPAK

DT SUFFIX

CASE 369A–13

ISSUE Z

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 0.19 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 MILLIMETER.

3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.

5. DIMENSION B DOES NOT INCLUDE DAMBAR
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

http://onsemi.com

9

P ACKAGE DIMENSIONS

SOT–223

ST SUFFIX

CASE 318E–04

ISSUE K

TO–220AB

T SUFFIX

CASE 221A–09

ISSUE AA

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.

____

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

MC33269

http://onsemi.com

10

Notes

MC33269

http://onsemi.com

11

Notes

MC33269

http://onsemi.com

12

ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes

without further notice to any products herein. SCILLC makes no warranty , representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC 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 special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC 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. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC 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 SCILLC product could create a situation where personal injury or
death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold
SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer .

PUBLICATION ORDERING INFORMATION

CENTRAL/SOUTH AMERICA:

Spanish Phone: [phone] (Mon–Fri 8:00am to 5:00pm MST)

Email: ONlit–[e-mail]

ASIA/PACIFIC : LDC for ON Semiconductor – Asia Support

Phone: [phone] (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)

T oll Free from Hong Kong & Singapore:

001–800–4422–3781

Email: ONlit–[e-mail]

JAPAN: ON Semiconductor, Japan Customer Focus Center

4–32–1 Nishi–Gotanda, Shinagawa–ku, T okyo, Japan 141–8549

Phone: [phone]
Email: [e-mail]

ON Semiconductor Website: http://onsemi.com

For additional information, please contact your local
Sales Representative.

MC33269/D

NORTH AMERICA Literature Fulfillment:

Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA

Phone: [phone] or 800–344–3860 T oll Free USA/Canada
Fax: [phone] or 800–344–3867 Toll Free USA/Canada
Email: [e-mail]

Fax Response Line: 303–675–2167 or 800–344–3810 T oll Free USA/Canada

N. American Technical Support: 800–282–9855 Toll Free USA/Canada
EUROPE: LDC for ON Semiconductor – European Support

German Phone: [phone] (M–F 1:00pm to 5:00pm Munich Time)

Email: ONlit–[e-mail]

French Phone: [phone] (M–F 1:00pm to 5:00pm Toulouse T ime)

Email: ONlit–[e-mail]

English Phone: [phone] (M–F 12:00pm to 5:00pm UK Time)

Email: [e-mail]

EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781

*Available from Germany, France, Italy , England, Ireland