© Semiconductor Components Industries, LLC, 2012

April, 2012 − Rev. 9

1

Publication Order Number:

LM337/D

LM337

1.5 A, Adjustable Output,

Negative Voltage Regulator

The LM337 is an adjustable 3−terminal negative voltage regulator

capable of supplying in excess of 1.5 A over an output voltage range of

−1.2 V to −37 V. This voltage regulator is exceptionally easy to use

and requires only two external resistors to set the output voltage.

Further, it employs internal current limiting, thermal shutdown and

safe area compensation, making it essentially blow−out proof.

The LM337 serves a wide variety of applications including local, on

card regulation. This device can also be used to make a programmable

output regulator, or by connecting a fixed resistor between the

adjustment and output, the LM337 can be used as a precision current

regulator.

Features

Package

Figure 1. Standard Application

Vout + –1.25V 1 )

R

2

R

1

mF solid tantalum or 10 mF aluminum electrolytic is recommended.

LM337

1.0

mF

+

1.0

mF

+

120

THREE−TERMINAL

ADJUSTABLE NEGATIVE

VOLTAGE REGULATOR

TO−220AB

T SUFFIX

CASE 221AB

1

MARKING

DIAGRAMS

LM

337xx

AWLYWWG

Pin 1. Adjust

Heatsink surface

connected to Pin 2.

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

ORDERING INFORMATION

xx

= BT, T

yyyy = BD2T, D2T

A

= Assembly Location

WL

= Wafer Lot

Y

= Year

WW = Work Week

G= Pb−Free Package

http://onsemi.com

D2T SUFFIX

CASE 936

Heatsink surface (shown as terminal 4 in

case outline drawing) is connected to Pin 2.

LM

337yyyy

AWLYWWG