www.ti.com

FEATURES

LM337...KTE, KTP, OR KVU PACKAGE

(TOP VIEW)

OUTPUT

INPUT

ADJUSTMENT

(TOP VIEW)

OUTPUT

INPUT

ADJUSTMENT

LM237, LM337...KC (TO-220) PACKAGE

(TOP VIEW)

INPUT

OUTPUT

ADJUSTMENT

INPUT

OUTPUT

LM337...KCS (TO-220) PACKAGE

(TOP VIEW)

ADJUSTMENT

DESCRIPTION/ORDERING INFORMATION

LM237, LM337

3-TERMINAL ADJUSTABLE REGULATORS

SLVS047J – NOVEMBER 1981 – REVISED MAY 2007

• Output Voltage Range Adjustable From

• Peak Output Current Constant Over

–1.2 V to –37 V

Temperature Range of Regulator

• Output Current Capability of 1.5 A Max

• Ripple Rejection Typically 77 dB

• Input Regulation Typically 0.01% Per

• Direct Replacement for Industry-Standard

Input-Voltage Change

LM237 and LM337

• Output Regulation Typically 0.3%

The LM237 and LM337 are adjustable 3-terminal negative-voltage regulators capable of supplying in excess of

–1.5 A over an output voltage range of –1.2 V to –37 V. They are exceptionally easy to use, requiring only two

external resistors to set the output voltage and one output capacitor for frequency compensation. The current

design has been optimized for excellent regulation and low thermal transients. In addition, the LM237 and

LM337 feature internal current limiting, thermal shutdown, and safe-area compensation, making them virtually

immune to failure by overloads.

The LM237 and LM337 serve a wide variety of applications, including local on-card regulation, programmable

output-voltage regulation, and precision current regulation.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

–25

°C to 150°C

TO-220 – KC

Tube of 50

LM237KC

LM237

PowerFLEX™ – KTE

Reel of 2000

LM337KTER

LM337

PowerFLEX – KTP

Reel of 3000

LM337KTPR

L337

TO-220 – KC

Tube of 50

LM337KC

LM337

0

°C to 125°C

TO-220 – KCS

Tube of 50

LM337KCSE3

LM337

TO-252 – KVU

Reel of 2500

LM337KVURG3

LM337

TO-263 – KTT

Reel of 500

LM337KTTR

LM337

(1)

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerFLEX is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 1981–2007, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.