MIC4574BN 查看數據表（PDF） - Micrel

零件编号

产品描述 (功能)

生产厂家

MIC4574BN

200kHz Simple 0.5A Buck Voltage Regulator

Micrel 

MIC4574

Block Diagrams

+24V max.

VIN

CIN

Shutdown

Enable

SHDN

Internal

Regulator

200kHz

Oscillator

Thermal

Shutdown

Current

Limit

Com-

parator

Error

Amp.

MIC4574-x.x

Driver

0.5A

Switch

1.23V

Bandgap

R1

R2

GND

SW

L1

D1

FB

Block Diagram with External Components

Fixed Step-Down Regulator

VOUT

COUT

+24V max.

VIN

Shutdown

Enable

SHDN

Internal

Regulator

200kHz

Oscillator

Thermal

Shutdown

Current

Limit

Com-

parator

Error

Amp.

MIC4574 [Adjustable]

Driver

1.23V

Bandgap

0.5A

Switch

GND

CIN

VOUT

R1

VREF R2 + 1

R1 R2 VOUT 1

VREF

SW

L1

D1

VOUT

COUT

R1

FB

R2

Block Diagram with External Components

Adjustable Step-Down Regulator

April 1998•

4-95

Micrel

4

Share Link: