Texas Instruments LM317L Bedienungsanleitung

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LM317L 100mA Adjustable Floating Voltage Regulator

1 Features

•Output voltage range (V

O

):

–Adjustable 1.25V to 37V (for new chip)

–Adjustable 1.25V to 32V (for legacy chip)

•Output current: Up to 100mA

•Accuracy:

–Input regulation typically 0.01% per input

voltage change

–Output regulation typically 0.5%

•Ripple rejection typically:

–80 dB at 120Hz

–65 dB at 100kHz

•For higher output current requirements,

see LM317M (500mA) and LM317 (1.5A)

2 Applications

•Electronic points of sale

•Medical, health, and fitness applications

•Printers

•Appliances and white goods

•TV

3 Description

The LM317L is an adjustable, 3-terminal, positive-

voltage regulator capable of supplying up to 100 mA

over an output-voltage range of 1.25V to 37V. The

device is exceptionally easy to use and requires only

two external resistors to set the output voltage.

For the legacy chip, the LM317LC series is

characterized for the junction temperature range

of 0°C to +125°C and the LM317LI device is

characterized for the operating junction temperature

range of –40°C to +125°C. For the new chip, the both

LM317LC and LM317LI series are characterized for

the junction temperature range of –40°C to +125°C.

Package Information

PART NUMBERPACKAGE

(1)

PACKAGE SIZE

(2)

LM317L

D (SOIC, 8)4.9mm × 6mm

LP (TO-92, 3)4.8mm × 3.68mm

PK (SOT-89, 3)4.5mm × 4.095mm

PW (TSSOP, 8)3mm × 6.4mm

(1)For more information, see the Mechanical, Packaging, and

Orderable Information.

(2)The package size (length × width) is a nominal value and

includes pins, where applicable.

C1 = 0.1

µF

V

I

470W

R1

R2

C2 = 1µF

V

O

Adjustment

OutputInput

LM317L

Simplified Schematic

LM317L

SLCS144F – JULY 2004 – REVISED DECEMBER 2024

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