MCP1603 Просмотр технического описания (PDF) - Microchip Technology

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MCP1603

2.0 MHz, 500 mA Synchronous Buck Regulator

Microchip Technology 

MCP1603/B/L

Functional Block Diagram

VIN

UVLO

UVLO

Thermal

Shutdown

TSD

Slope

Comp.

+

+ OSC

Band

Gap

Soft Start

VREF

SHDN

IPEAKPWM

IPEAKPFM

ILIMPWM

IPK Limit

ILIMPFM

-ILPK

SQ

POFF NOFF

Switch Drive

LX

RQ

Logic and Timing

PWM/PFM - PWM ONLY

PWM-ONLY

PFM Error Amp

PWM/PFM

Logic

GND

VREF

PWM Error Amp

EA

IPEAKPFM

IPEAKPWM

-ILPK

-IPK Limit

VREF

VFB / VOUT

OV Threshold

UV Threshold

Disable

Switcher

UVLO

TSD

 2007-2012 Microchip Technology Inc.

DS22042B-page 3

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