MIC4690 查看數據表（PDF） - Micrel

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产品描述 (功能)

生产厂家

MIC4690

500kHz 1A SuperSwitcher™ Buck Regulator

Micrel 

MIC4690

Ordering Information

Part Number

Standard

Lead-Free

MIC4690BM

MIC4690YM

Voltage

Adjustable

Temperature Range

–40°C to +125°C

Package

8-lead SOP

Micrel

Pin Configuration

SHDN 1

VIN 2

SW 3

FB 4

8 GND

7 GND

6 GND

5 GND

SOP-8 (M)

Pin Description

Pin Number

1

2

3

4

5-8

Pin Name

SHDN

VIN

SW

FB

GND

Pin Function

Shutdown (Input): Logic low enables regulator. Logic high (>1.5V) shuts

down regulator.

Supply Voltage (Input): Unregulated +4V to +30V continuous supply

voltage, with a maximum +34V transient voltage.

Switch (Output): Emitter of NPN output switch. Connect to external storage

inductor and Schottky diode.

Feedback (Input): Connect to output on fixed output voltage versions, or to

1.23V-tap of voltage-divider network for adjustable version.

Ground

MIC4690

2

April 2005

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