8

Micro–8

MC33264

SEMICONDUCTOR

TECHNICAL DATA

LOW DROPOUT

MICROPOWER VOLTAGE

REGULATORS WITH

ON/OFF CONTROL

DM SUFFIX

PLASTIC PACKAGE

CASE 846A

(Micro–8)

8

1

1

7

6

5

2

3

4

(Top View)

Input

On/Off

On/Off

Output

PIN CONNECTIONS

Order this document by MC33264/D

8

1

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

N/C

Base

Gnd

Adjust

Device

Operating

Temperature Range Package

ORDERING INFORMATION

MC33264D–2.8

MC33264D–3.0

MC33264D–3.3

MC33264D–3.8

MC33264D–4.0

MC33264D–4.75

MC33264D–5.0

TA = – 40° to +85°C

SO–8

MC33264DM–2.8

MC33264DM–3.0

MC33264DM–3.3

MC33264DM–3.8

MC33264DM–4.0

MC33264DM–4.75

MC33264DM–5.0

1

MOTOROLA ANALOG IC DEVICE DATA

Micropower smallCAP™

Voltage Regulators with

On/Off Control

The MC33264 series are micropower low dropout voltage regulators

available in SO–8 and Micro–8 surface mount packages and a wide range of

output voltages. These devices feature a very low quiescent current (100

µA

in the ON mode; 0.1

µA in the OFF mode), and are capable of supplying

output currents up to 100 mA. Internal current and thermal limiting protection

is provided. They require only a small output capacitance for stability.

Additionally, the MC33264 has either active HIGH or active LOW control

(Pins 2 and 3) that allows a logic level signal to turn–off or turn–on the

regulator output.

Due to the low input–to–output voltage differential and bias current

specifications, these devices are ideally suited for battery powered

computer, consumer, and industrial equipment where an extension of useful

battery life is desirable.

MC33264 Features:

131 mV at 50 mA

0.22

µF for 4.0 V, 4.75 V and 5.0 V Output Voltages

0.33

µF for 2.8 V, 3.0 V, 3.3 V and 3.8 V Output Voltages

On/Off

Representative Block Diagram

This device contains 37 active transistors.

Thermal and

Anti–Sat

Protection

1.23 V

Vref

Vout

Base

Adj

Gnd

Vin

On/Off

1

2

3

8

7

6

5

MC33264

52.5 k

Rint

© Motorola, Inc. 1998

Rev 3