LP3852EMPX-3.3

更新时间： 2024-11-13 22:46:59

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器
页数	文件大小	规格书
19页	382K
描述
1.5A Fast Response Ultra Low Dropout Linear Regulators

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数据手册

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LP3852EMPX-3.3 数据手册

March 2004

LP3852/LP3855

1.5A Fast Response Ultra Low Dropout Linear

Regulators

General Description

Features

n Ultra low dropout voltage

The LP3852/LP3855 series of fast ultra low-dropout linear

regulators operate from a +2.5V to +7.0V input supply. Wide

range of preset output voltage options are available. These

ultra low dropout linear regulators respond very quickly to

step changes in load, which makes them suitable for low

voltage microprocessor applications. The LP3852/LP3855

are developed on a CMOS process which allows low quies-

cent current operation independent of output load current.

This CMOS process also allows the LP3852/LP3855 to op-

erate under extremely low dropout conditions.

n Stable with selected ceramic capacitors

n Low ground pin current

n Load regulation of 0.06%

n 10nA quiescent current in shutdown mode

n Guaranteed output current of 1.5A DC

n Available in TO-263, TO-220 and SOT-223 packages

n Output voltage accuracy 1.5%

n Error flag indicates output status

n Sense option improves load regulation

n Overtemperature/overcurrent protection

n −40˚C to +125˚C junction temperature range

Dropout Voltage: Ultra low dropout voltage; typically 24mV

at 150mA load current and 240mV at 1.5A load current.

Ground Pin Current: Typically 4mA at 1.5A load current.

Shutdown Mode: Typically 10nA quiescent current when

the shutdown pin is pulled low.

Applications

n Microprocessor power supplies

n GTL, GTL+, BTL, and SSTL bus terminators

n Power supplies for DSPs

n SCSI terminator

Error Flag: Error flag goes low when the output voltage

drops 10% below nominal value.

SENSE: Sense pin improves regulation at remote loads.

Precision Output Voltage: Multiple output voltage options

are available ranging from 1.8V to 5.0V with a guaranteed

accuracy of 1.5% at room temperature, and 3.0% over all

conditions (varying line, load, and temperature).

n Post regulators

n High efficiency linear regulators

n Battery chargers

n Other battery powered applications

Typical Application Circuits

20031001

**SD and ERROR pins must be pulled high through a 10kΩ pull-up resistor. Connect the ERROR pin to ground if this function is not used. See Application Hints

for more information.

DS200310

www.national.com

12 3 4 5 6 7...19

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与LP3852EMPX-3.3相关器件

型号	品牌	获取价格	描述	数据表
LP3852EMPX-3.3/NOPB	TI	获取价格	1.5A Fast Response Ultra Low Dropout Linear Regulators 5-SOT-223 -40 to 125
LP3852EMPX-3.3/NOPB	NSC	获取价格	IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.435 V DROPOUT, PDSO5, SOT-223, 5 PIN, Fixed
LP3852EMPX-5.0	NSC	获取价格	1.5A Fast Response Ultra Low Dropout Linear Regulators
LP3852EMPX-5.0/NOPB	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.435 V DROPOUT, PDSO5, SOT-223, 5 PIN, Fixed Po
LP3852ES-1.8	NSC	获取价格	1.5A Fast Response Ultra Low Dropout Linear Regulators
LP3852ES-1.8	TI	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 0.38V DROPOUT, PSSO5, TO-263, 5 PIN
LP3852ES-1.8/NOPB	NSC	获取价格	IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 0.38 V DROPOUT, PSSO5, TO-263, 5 PIN, Fixed Po
LP3852ES-1.8/NOPB	TI	获取价格	1.5-A Fast Response Ultra-Low Dropout Linear Regulators
LP3852ES-1.8/NOPB	ROCHESTER	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 0.38V DROPOUT, PSSO5, TO-263, 5 PIN
LP3852ES-2.5	NSC	获取价格	1.5A Fast Response Ultra Low Dropout Linear Regulators

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