FAN1540

更新时间： 2024-11-18 22:50:59

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
15页	260K
描述
1A/1.3A, LDO With Low Quiescent Current

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FAN1540 数据手册

www.fairchildsemi.com

FAN1539/FAN1540

1A/1.3A, LDO With Low Quiescent Current

Features

Description

• Very Low Ground Current (I

• Excellent Line Regulation

• Excellent Load Regulation

• Very Low Transient Overshoot

• Stable with low ESR Output Capacitor (ESR = 0mΩ)

• Thermal Shutdown

= 1mA)

The FAN1539/FAN1540 series of high current LDO (1.0A

and 1.3A) has been developed for portable applications

where low quiescent current is an important requirement.

The device features excellent line and load transient response

which does not exceed 10% of nominal output value for full

operating temperature range even during power ON cycle

and short circuit removal. Internally trimmed, temperature

compensated bandgap reference guarantees 2.5% accuracy

for full range of input voltage, output current and tempera-

ture. Included on the chip are accurate current limit and ther-

mal shutdown protection. Device stability is achieved with

only two external low ESR ceramic capacitors.

GND

• Current Limit

• Output Options: 3.3V and 1.8V

Applications

• Disk Drive Circuits

• Desktop Computers

• Laptop, Notebook Computers

• General purpose Three Terminal Regulator

The FAN1539/FAN1540 is available in thermally enhanced

3x3mm 6-lead MLP, 5x6mm 8-lead MLP package and

3-lead TO-252 packages. The 5x6mm MLP package version

features separate Kelvin sense pin for high precision applica-

tions.

Block Diagram

OUT

(Note1)

BANDGAP

REFERENCE

SENSE

(Note2)

CURRRENT

LIMIT

SRART-UP

CIRCUIT

ERROR

AMPLIFIER

THERMAL

SHUTDOWN

GND

Notes:

1. No connection for FAN1540MMPX.

2. V_SENavailable for FAN1540MMPX.

REV. 1.0.8 3/22/04

12 3 4 5 6 7...15

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FAN1540D18X	FAIRCHILD	获取价格	1A/1.3A, LDO with Low Quiescent Current
FAN1540DX	FAIRCHILD	获取价格	1A/1.3A, LDO with Low Quiescent Current
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FAN1540MMPX	FAIRCHILD	获取价格	1A/1.3A, LDO with Low Quiescent Current
FAN1540MPMX	FAIRCHILD	获取价格	暂无描述
FAN1540MPX	FAIRCHILD	获取价格	1A/1.3A, LDO with Low Quiescent Current
FAN1540MX	FAIRCHILD	获取价格	暂无描述
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