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LP38503TSX-ADJ

更新时间： 2024-11-14 11:38:55

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
16页	355K
描述
3A FlexCap Low Dropout Linear Regulator for 2.7V to 5.5V Inputs

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LP38503TSX-ADJ 数据手册

May 19, 2008

LP38501/3-ADJ, LP38501A/3A-ADJ

3A FlexCap Low Dropout Linear Regulator for 2.7V to 5.5V

Inputs

General Description

Features

National's FlexCap LDO's feature unique compensation that

allows the use of any type of output capacitor with no limits

on minimum or maximum ESR. The LP38501/3 series of low-

dropout linear regulators operates from a +2.7V to +5.5V input

supply. These ultra low dropout linear regulators respond very

quickly to step changes in load, which makes them suitable

for low voltage microprocessor applications. Developed on a

CMOS process, (utilizing a PMOS pass transistor), the

LP38501/3 has low quiescent current that changes little with

load current.

FlexCap: Stable with ceramic, tantalum, or aluminum

■

capacitors

Stable with 10 µF input/output capacitor

■

Adjustable output voltage from 0.6V to 5V

Low ground pin current

25 nA quiescent current in shutdown mode

Guaranteed output current of 3A

Available in TO-263, TO-263 THIN packages

Guaranteed V_ADJaccuracy of ±1.5% @ 25°C (A Grade)

Ground Pin Current: Typically 2 mA at 3A load current.

Disable Mode: Typically 25 nA quiescent current when the

Enable pin is pulled low.

Guaranteed V_ADJaccuracy of ±3.5% @ 25°C (STD)

Over-Temperature and Over-Current protection

■

−40°C to +125°C operating T_Jrange

Simplified Compensation: Stable with any type of output

capacitor, regardless of ESR.

Enable pin (LP38501)

Precision Output: "A" grade versions available with 1.5%

V_ADJtolerance (25°C) and 3% over line, load and tempera-

ture.

Applications

ASIC Power Supplies In:

■

Printers, Graphics Cards, DVD Players

Set Top Boxes, Copiers, Routers

DSP and FPGA Power Supplies

■

SMPS Regulator

Conversion from 3.3V or 5V Rail

Typical Application Circuit

30028119

300281

www.national.com

12 3 4 5 6 7...16

中文翻译

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与LP38503TSX-ADJ相关器件

型号	品牌	获取价格	描述	数据表
LP38503TSX-ADJ/NOPB	TI	获取价格	LP38501/3-ADJ, LP38501A/3A-ADJ 3A FlexCap Low Dropout Linear Regulator for 2.7V to 5.5V In
LP38511	TI	获取价格	800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag
LP38511_09	NSC	获取价格	800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag
LP38511_14	TI	获取价格	800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag
LP38511-1.8	NSC	获取价格	800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag
LP38511-ADJ	TI	获取价格	LP38511-ADJ 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator
LP38511-ADJ	NSC	获取价格	800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator
LP38511MR-ADJ	TI	获取价格	LP38511-ADJ 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator
LP38511MR-ADJ	NSC	获取价格	800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator
LP38511MR-ADJ/NOPB	TI	获取价格	800-mA, adjustable low-dropout voltage regulator with enable 8-SO PowerPAD -40 to 125

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