Datasheet > LM3940S

LM3940S

更新时间： 2024-09-25 22:51:51

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
3页	147K
描述
1.25A High Current Low Dropout

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

LM3940S 数据手册

Bay Linear

Inspire the Linear Power

1.25A High Current Low Dropout

LM3940

Voltage Regulator for Convert 5V & 3.3V

Description

The Bay Linear LM3940 is a 1.25A high accuracy, low dropout

voltage regulator with only 40mV at light loads and

350mV(Typ.)@ 1.0A) and low quiescent current of 240µA typical.

Features

•

High output accuracy of 1%

Fix Output 5.0v & 3.3V

Output Current of 1.25A

Low Dropout Voltage

Low quiescent current

Extremely Tight Load & Line Regulation

Reverse-battery and “Load Dump” Protection

Zero Current Shutdown Mode (5-pin version)

Offer in TO-263, TO-252, TO-220, SOT-223, &

New Slim LPDD

The LM3940 is designed for low voltage a application that requires

lower dropout voltage and faster transient response. This device is

an excellent choice for use in powering low voltage applications

where require a lower dropout, faster transient response to regulate

from +2.5V to 3.8V supplies and as a post regulator for switching

supplies applications.

•

Similar to industry Standard LM3940

The LM3940 offers full protection against over-current faults,

reversed input polarity, reversed load insertion, and positive and

negative transient voltage. On-Chip trimming adjusts the reference

voltage to 1%.

Applications

•

Powering VGA & Sound Card

LCD Monitor

The LM3940 are offered in a 3-pin SOT-223, TO-220 & TO-263

package compatible with other 3 terminal regulators. The LM3940

is also offer in a new LPDD (Low Profile TO-263) package from

4.47 mm (DD) tickness down to only 1.27 mm (LPDD) total

tickness.

Battery Powered Equipments/Laptop & Notebook

SMPS Post Regulator / DC to DC Modules

High Efficiency Linear Power Supply

Adjustable Power Supply

Bar Code Scanners

Pin Connection

Ordering Information

Devices

Package

TO-220-3

TO-263-3

TO-252

SOT-223-3

LPDD-3

Temp.

LM3940T

-40 °C to 125 °C

LM3940S

LM3940D

LM3940N

LM3940J

XX=Output Voltage

Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556

www.baylinear.com

12 3

中文翻译

下载PDF

与LM3940S相关器件

型号	品牌	获取价格	描述	数据表
LM3940T	ETC	获取价格	1.25A High Current Low Dropout
LM3940WG-3.3-QML	NSC	获取价格	1A Low Dropout Regulator for 5V to 3.3V Conversion
LM3940WG3.3-SCD	NSC	获取价格	3.3V FIXED POSITIVE LDO REGULATOR, 1V DROPOUT, CDSO16, CERAMIC, SOIC-16
LM394BH	NSC	获取价格	LM194/LM394 Supermatch Pair
LM394CH	NSC	获取价格	LM194/LM394 Supermatch Pair
LM394CH/NOPB	TI	获取价格	20mA, 20V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, METAL CAN-6
LM394CN	NSC	获取价格	LM194/LM394 Supermatch Pair
LM394H	NSC	获取价格	LM194/LM394 Supermatch Pair
LM394H/NOPB	TI	获取价格	TRANSISTOR 20 mA, 35 V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, METAL CAN-6, BIP Gene
LM394N	NSC	获取价格	LM194/LM394 Supermatch Pair