MM1482 查看數據表（PDF） - Mitsumi

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MM1482

IC for Regulator+Reset

Mitsumi 

MITSUMI

IC for Regulator+Reset

Monolithic IC MM1482

IC for Regulator+Reset MM1482

June 23, 1999

Outline

This IC, developed for use in CD-ROM drives, combines a 3V regulator adapted to low power consumption

with a much-sought reset function (regulator input monitoring), with internal delay circuit, set to detect 4.2V.

Features

1. Large output current

300mA max.

2. High ripple rejection rate

80dB typ.

3. Internal thermal shutdown circuit.

4. Internal current-limiting circuit.

5. Adjustment-free reset detection voltage

4.2V typ.

6. Easy to set delay time from voltage detection to reset release.

7. Operating temperature range and ripple elimination rate are available separately for 3 ranks.

Package

SOP-8D

Applications

1. CD-ROM drive

2. Optical disc drivers

Pin Assignment

8765

1234

SOP-8D

(TOP VIEW)

Equivalent Circuit Diagram

1

N. C

---------------------------------------------------------------------

2

RESET

3

Cf

4

VIN

5

VOUT

6

N. C

7

GND

8

Cd

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