FAN1538

更新时间： 2024-11-18 22:50:59

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		稳压器软启动
页数	文件大小	规格书
6页	77K
描述
Dual Channel 1A Low Dropout Linear Regulator with UVLO and Soft-start

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FAN1538 数据手册

www.fairchildsemi.com

FAN1538

Dual Channel 1A Low Dropout

Linear Regulator with UVLO and Soft-start

Features

General Description

• Two independent outputs

The FAN1538 provides two output voltages: a ﬁxed 3.3V

ouput and either a ﬁxed 2.5V or adjustable output with 1A

output current capability. Refer to Ordering Information for

details.

• Load regulation: 0.05% typical

• Under-voltage lockout and softstart

• Over Temperature protection

• T0-252 DPAK, 5-lead SPAK packages

• Fixed 3.3V and adjustable or ﬁxed 2.5V output

Current limit protects against short circuit currents and on

chip over temperature circuitry limits the maximum die tem-

perature.

Applications

• Hard Disk Drives, CD-Roms

• Set-top Boxes

• ADSL line cards

Under voltage lockout and softstart circuitry protects against

unregulated output voltages when the input voltage is below

speciﬁcation.

• Motherboards with multiple supplies

Block Diagram

FAN1538A

3.3V at 1.0A

2.5V at 1.0A

VIN = 5V

22µF

V_IN

GND

22µF

FAN1538B

3.3V at1.0A

VIN = 5V

22µF

1.5V at1.0A

250

GND

22µF

1250

V2 = VREF (1 + R1/R2)

REV. 1.0.2 12/17/03

12 3 4 5 6

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FAN1538PAX	FAIRCHILD	获取价格	Dual Channel 1A Low Dropout Linear Regulator with UVLO and Soft-start
FAN1538PBX	FAIRCHILD	获取价格	Dual Channel 1A Low Dropout Linear Regulator with UVLO and Soft-start
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FAN1539MPX	FAIRCHILD	获取价格	1A/1.3A, LDO with Low Quiescent Current
FAN1540	FAIRCHILD	获取价格	1A/1.3A, LDO With Low Quiescent Current
FAN1540BMPX	ROCHESTER	获取价格	3.3 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, QCC6, 3 X 3 MM, LEAD FREE, MO-229WEEA,