EN5312QI-E View Datasheet(PDF) - Enpirion, Inc.

Part Name

Description

MFG CO.

EN5312QI-E

1A Synchronous Buck Regulator With Integrated Inductor

Enpirion, Inc. 

March 2007

Functional Block Diagram

EN5312QI

VIN

ENABLE

UVLO

Thermal Limit

Current Limit

Soft Start

(-)

PWM

Comp

(+)

Sawtooth

Generator

Logic

P-Drive

N-Drive

Compensation

Network

(-)

Error

Amp

(+)

VREF

DAC

Figure 3. Functional block diagram.

Switch

VOUT

GND

VSENSE

VFB

Voltage

Select

Package Boundry

VS0 VS1 VS2

©Enpirion 2007 all rights reserved, E&OE

3

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