A4402 데이터 시트보기 (PDF) - Allegro MicroSystems

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A4402

Constant On-Time Buck Converter With Integrated Linear Regulator

Allegro MicroSystems 

A4402

Constant On-Time Buck Converter

With Integrated Linear Regulator

Selection Guide

Part Number

A4402ELPTR-T

A4402KLPTR-T

Ambient Operating

Temperature, TA

–40°C to 85°C

–40°C to 150°C

Packing

4000 pieces per 13-in. reel

Package

16-pin TSSOP with exposed thermal pad

Absolute Maximum Ratings

Characteristic

VIN1 Pin

VIN2 Pin

LX Pin

ISEN Pin

ENB Pin

VO2 Pin

WDI Pin

TON Pin

FB1 and FB2 Pins

NPOR

TSET Pin

POR Pin

BOOT Pin

Ambient Operating Temperature

Junction Temperature

Storage Temperature Range

Symbol

VIN1

VIN2

VLX

VISEN

VENB

VO2

VWDI

VTON

VFBx

VNPOR

VTSET

VPOR

VBOOT

TA

TJ(max)

Tstg

Range E

Range K

Notes

Rating

Unit

–0.3 to 50

V

–0.3 to 7

V

–1 to 50

V

–0.5 to 1

V

–0.3 to 7

V

–0.3 to 7

V

–0.3 to 6

V

–0.3 to 7

V

–0.3 to 7

V

–0.3 to 6.5

V

–0.3 to 7

V

–0.3 to 6

V

VLX to VIN1+ 7

V

–40 to 85

°C

–40 to 150

°C

150

°C

–40 to 150

°C

Thermal Characteristics

Characteristic

Symbol

Test Conditions*

Package Thermal Resistance

RθJA

On 4-layer PCB based on JEDEC standard

*Additional thermal information available on the Allegro website.

Value Unit

34 ºC/W

Allegro MicroSystems, Inc.

2

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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