LM26003

更新时间： 2024-11-22 05:42:03

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器开关
页数	文件大小	规格书
18页	435K
描述
3A Switching Regulator with High Efficiency Sleep Mode

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LM26003 数据手册

August 28, 2008

LM26003

3A Switching Regulator with High Efficiency Sleep Mode

General Description

Features

The LM26003 is a switching regulator designed for the high

efficiency requirements of applications with stand-by modes.

The device features a low-current sleep mode to maintain ef-

ficiency under light-load conditions and current-mode control

for accurate regulation over a wide input voltage range. Qui-

escent current is reduced to 10.8 µA typically in shutdown

mode and less than 40 µA in sleep mode. Forced PWM mode

is also available to disable sleep mode.

High efficiency sleep mode

■

40 µA typical Iq in sleep mode

10.8 µA typical Iq in shutdown mode

3.0V minimum input voltage

4.0V to 38V continuous input range

1.5% reference accuracy

Cycle-by-cycle current limit

The LM26003 can deliver up to 3A of continuous load current

with a fixed current limit, through the internal N-channel

switch. The part has a wide input voltage range of 4.0V to 38V

and can operate with input voltages as low as 3V during line

transients.

Adjustable Frequency (150 kHz to 500 kHz)

Synchronizable to an external clock

Power Good Flag

Forced PWM function

Operating frequency is adjustable from 150 kHz to 500 kHz

with a single resistor and can be synchronized to an external

clock.

Adjustable Soft-start

TSSOP-20 exposed pad package

Thermal Shut Down

Other features include Power good, adjustable soft-start, en-

able pin, input under-voltage protection, and an internal boot-

strap diode for reduced component count.

Applications

Automotive Telematics

■

Navigation systems

In-Dash Instrumentation

Battery Powered Applications

Stand-by power for home gateways/set-top boxes

■

Typical Application Circuit

30067601

300676

www.national.com

12 3 4 5 6 7...18

中文翻译

下载PDF

与LM26003相关器件

型号	品牌	获取价格	描述	数据表
LM26003_15	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003MH	NSC	获取价格	3A Switching Regulator with High Efficiency Sleep Mode
LM26003MH/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003MHX	NSC	获取价格	3A Switching Regulator with High Efficiency Sleep Mode
LM26003MHX/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003-Q1	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003QMH/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM26003QMHX/NOPB	TI	获取价格	LM26003-xx 3-A Switching Regulator With High Efficiency Sleep Mode
LM2601	NSC	获取价格	Adapter Interface Circuit
LM2601616AB	LIGHTKEY	获取价格	LM2601616A/B Series â 1.60 inch 16x16 Dot M