Datasheet > LM1117S-3.3

LM1117S-3.3

更新时间： 2024-11-26 22:09:15

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美国国家半导体 - NSC		稳压器调节器输出元件
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21页	532K
描述
800mA Low-Dropout Linear Regulator

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LM1117S-3.3 数据手册

June 2004

LM1117/LM1117I

800mA Low-Dropout Linear Regulator

General Description

Features

n Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable

Versions

The LM1117 is a series of low dropout voltage regulators

with a dropout of 1.2V at 800mA of load current. It has the

same pin-out as National Semiconductor’s industry standard

LM317.

n Space Saving SOT-223 and LLP Packages

n Current Limiting and Thermal Protection

The LM1117 is available in an adjustable version, which can

set the output voltage from 1.25V to 13.8V with only two

external resistors. In addition, it is also available in five fixed

voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.

n Output Current

n Line Regulation

n Load Regulation

n Temperature Range

— LM1117

800mA

0.2% (Max)

0.4% (Max)

The LM1117 offers current limiting and thermal shutdown. Its

circuit includes a zener trimmed bandgap reference to as-

sure output voltage accuracy to within 1%.

0˚C to 125˚C

−40˚C to 125˚C

— LM1117I

The LM1117 series is available in LLP, TO-263, SOT-223,

TO-220, and TO-252 D-PAK packages. A minimum of 10µF

tantalum capacitor is required at the output to improve the

transient response and stability.

Applications

n 2.85V Model for SCSI-2 Active Termination

n Post Regulator for Switching DC/DC Converter

n High Efficiency Linear Regulators

n Battery Charger

n Battery Powered Instrumentation

Typical Application

Active Terminator for SCSI-2 Bus

10091905

Fixed Output Regulator

10091928

DS100919

www.national.com

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与LM1117S-3.3相关器件

型号	品牌	获取价格	描述	数据表
LM1117S-3.3V	HTC	获取价格	1A L.D.O VOLTAGE REGULATOR Output Current up to 1 A
LM1117S5.0	NSC	获取价格	800mA Low-Dropout Linear Regulator
LM1117S-5.0	NSC	获取价格	800mA Low-Dropout Linear Regulator
LM1117S-5.0/NOPB	TI	获取价格	5V FIXED POSITIVE LDO REGULATOR, 1.3V DROPOUT, PSSO3, TO-263, 3 PIN
LM1117S-5.0V	HTC	获取价格	1A L.D.O VOLTAGE REGULATOR Output Current up to 1 A
LM1117SADJ	NSC	获取价格	800mA Low-Dropout Linear Regulator
LM1117S-ADJ	NSC	获取价格	800mA Low-Dropout Linear Regulator
LM1117S-ADJ	HTC	获取价格	1A L.D.O. VOLTAGE REGULATOR
LM1117S-ADJ	ROCHESTER	获取价格	1.25 V-13.8V ADJUSTABLE POSITIVE LDO REGULATOR, 1.3V DROPOUT, PSSO3, TO-263, 3 PIN
LM1117S-ADJ/NOPB	TI	获取价格	800mA Low-Dropout Linear Regulator