Texas Instruments LM1117 Bedienungsanleitung

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LM1117 800-mA, Low-Dropout Linear Regulator

1 Features

•For a newer drop-in alternative, see the TLV1117

•For drop-in replacements in fixed output SOT-223

package configuration and improved functionality,

see the TLV761

•Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and adjustable

versions

•Space-saving SOT-223 and WSON packages

•Current limiting and thermal protection

•Output current: 800 mA

•Line regulation: 0.2% (maximum)

•Load regulation: 0.4% (maximum)

•Temperature range:

–LM1117: 0°C to +125°C

–LM1117I: –40°C to +125°C

2 Applications

•AC drive power stage modules

•Merchant network and server PSU

•Industrial AC/DC

•Ultrasound scanners

•Servo drive control modules

3 Description

The LM1117 is a low dropout voltage regulator with a

dropout of 1.2 V at 800 mA of load current.

The LM1117 is available in an adjustable version,

which can set the output voltage from 1.25 V to 13.8 V

with only two external resistors. In addition, the device

is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V,

and 5 V.

The LM1117 offers current limiting and thermal

shutdown. The circuit includes a Zener trimmed band-

gap reference to assure output voltage accuracy to

within ±1%.

A minimum of 10-µF tantalum capacitor is required

at the output to improve the transient response and

stability.

Package Information

PART NUMBERPACKAGE

(1)

BODY SIZE (NOM)

LM1117,

LM1117I

DCY (SOT-223, 4)6.50 mm × 3.50 mm

NDE (TO-220, 3)14.986 mm × 10.16 mm

NDP (TO-252, 3)6.58 mm × 6.10 mm

NGN (WSON, 8)4.00 mm × 4.00 mm

KTT (TO-263, 3)10.18 mm × 8.41 mm

(1)For all available packages, see the orderable addendum at

the end of the data sheet.

Adjustable Output Regulator

LM1117

SNOS412Q – FEBRUARY 2000 – REVISED JANUARY 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Produktspezifikationen