MM1257 查看數據表（PDF） - Mitsumi

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MM1257

High-Precision Three-Pin Regulator

Mitsumi 

MITSUMI

High-Precision Three-Pin Regulator MM1257

High-Precision Three-Pin Regulator

Monolithic IC MM1257

Outline

This IC is a high-precision high-voltage stabilized power supply device which stands out from ordinary low-

saturation three-pin regulators.

It can be used at a wide range of output voltages, from 3V to 12V, delivering output currents up to 100mA. It

is one of a series of devices available at lower prices than previous regulators.

Features

1. Input current

2. Output noise voltage

3. Maximum output current

4. No-load input current

5. Thermal shutdown circuit provided

6. Output voltage ranks

27V max.

200µVRMS typ.

100mA max.

500µA typ.

A : 12V±2% E : 6V±2%

B : 10V±2% F : 5V±2%

C : 9V±2% G : 3V±2%

D : 8V±2%

Package

TO-92A (MM1257 T)

MMP-4A (MM1257 M)

*The output voltage rank appears in the boxes.

Applications

1. Handheld computers

2. Portable transceivers

3. Cordless phones

Pin Assignment

4

3

1

NC

2

VIN

3

VOUT

1

2

4

GND

MMP-4A

1

2

3

123

TO-92A

VOUT

GND

VIN

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