Datasheet > LP3962EMPX-3.3

LP3962EMPX-3.3

更新时间： 2024-11-26 00:01:07

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
22页	476K
描述
1.5A Fast Ultra Low Dropout Linear Regulators

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数据手册

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LP3962EMPX-3.3 数据手册

November 2001

LP3962/LP3965

1.5A Fast Ultra Low Dropout Linear Regulators

General Description

Features

n Ultra low dropout voltage

n Low ground pin current

n Load regulation of 0.04%

The LP3962/LP3965 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 fast to step

changes in load which makes them suitable for low voltage

microprocessor applications. The LP3962/LP3965 are de-

veloped on a CMOS process which allows low quiescent

current operation independent of output load current. This

CMOS process also allows the LP3962/LP3965 to operate

under extremely low dropout conditions.

n 15µA quiescent current in shutdown mode

n Guaranteed output current of 1.5A DC

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

n Output voltage accuracy 1.5%

n Error flag indicates output status (LP3962)

n Sense option improves better load regulation (LP3965)

n Extremely low output capacitor requirements

n Overtemperature/overcurrent protection

Dropout Voltage: Ultra low dropout voltage; typically 38mV

at 150mA load current and 380mV at 1.5A load current.

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

Ground Pin Current: Typically 5mA at 1.5A load current.

Shutdown Mode: Typically 15µA 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 (for LP3962).

SENSE: Sense pin improves regulation at remote loads.

(For LP3965)

n Post regulators

Precision Output Voltage: Multiple output voltage options

n High efficiency linear regulators

n Battery chargers

are available ranging from 1.2V to 5.0V and adjustable

(LP3965), with a guaranteed accuracy of 1.5% at room

temperature, and 3.0% over all conditions (varying line,

n Other battery powered applications

load, and temperature).

Typical Application Circuits

10126601

*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 applications

section for more information.

See Application Hints.

DS101266

www.national.com

12 3 4 5 6 7...22

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与LP3962EMPX-3.3相关器件

型号	品牌	获取价格	描述	数据表
LP3962EMPX-5.0	TI	获取价格	5V FIXED POSITIVE LDO REGULATOR, 0.55V DROPOUT, PDSO5, SOT-223, 5 PIN
LP3962EMPX-5.0	NSC	获取价格	1.5A Fast Ultra Low Dropout Linear Regulators
LP3962EMPX5.0EP	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.55 V DROPOUT, PDSO5, PLASTIC, SOT-223, 5 PIN,
LP3962EP	NSC	获取价格	1.5A Fast Ultra Low Dropout Linear Regulators
LP3962ES-1.8	NSC	获取价格	1.5A Fast Ultra Low Dropout Linear Regulators
LP3962ES-1.8	TI	获取价格	1.5A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125
LP3962ES-1.8/NOPB	NSC	获取价格	IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 0.7 V DROPOUT, PSSO5, TO-263, 5 PIN, Fixed Pos
LP3962ES-1.8/NOPB	TI	获取价格	1.5A Fast Ultra Low Dropout Linear Regulators
LP3962ES-2.5	NSC	获取价格	1.5A Fast Ultra Low Dropout Linear Regulators
LP3962ES-2.5	TI	获取价格	1.5A Fast Ultra Low Dropout Linear Regulators

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