MIC2179 Просмотр технического описания (PDF) - Micrel

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Компоненты Описание

производитель

MIC2179

1.5A Synchronous Buck Regulator

Micrel 

Micrel, Inc.

PWM-Mode Functional Diagram

VIN

4.5V to 16.5V

MIC2179

CIN

VIN 16 17

IS E N S E

Amp.

110mΩ

P-channel

110mΩ

N-channel

Stop

S Y NC

13

200kHz

Oscillator

Corrective

Ramp

Reset

Pulse

COMP

CC

RC 8

R

Q

S

PWM

Comp.

Error

Amp.

VR EF1.245V

MIC2179 [Adjustable] PWM-Mode Signal Path

S G N D 9 10 11 12

( ) VOUT = 1.245

R1

R2

+

1

SW

3

PGND

1

2

19

20

L1

IL1

D

CO U T

VO U T

R1

FB

7

R2

VS W

Reset

Pulse

IL O A D

IL 1

∆IL1

Error Amp.

Output

IS E N S E

June 2009

9

M9999-063009

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