A4447SLJTR-T 参数 Datasheet PDF下载

A4447

High Voltage Step Down Regulator

Absolute Maximum Ratings

Characteristic

VIN Supply Voltage

VBIAS Input Voltage

SW Switching Voltage

ENB Input Voltage Range

Operating Ambient Temperature Range

Junction Temperature

Storage Temperature

Symbol

V

IN

V

BIAS

V

S

V

ENB

T

A

T

J

(max)

T

stg

Conditions

Min.

–

–0.3

–1

–0.3

–20

–

–55

Typ.

–

–

–

–

–

–

–

Max.

50

7

–

7

85

150

150

Units

V

V

V

V

°C

°C

°C

*Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed

the specified current ratings, or a junction temperature, T

J

, of 150°C.

Package Thermal Characteristics*

Package

LJ

R

θJA

(°C/W)

35

PCB

4-layer

* Additional information is available on the Allegro website.

Ordering Information

Use the following complete part numbers when ordering:

Part Number

A4447SLJTR-T

Packing

13-in. reel, 3000 pieces/reel

Description

LJ package, SOIC surface mount with

exposed thermal pad; leadframe plating

100% matte tin.

Allegro MicroSystems, Inc.

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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