LM137, LM337-N

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SNVS778D – MAY 1999 – REVISED APRIL 2013

LM137/LM337-N 3-Terminal Adjustable Negative Regulators

Check for Samples: LM137, LM337-N

1

FEATURES

DESCRIPTION

The

LM137/LM337-N

are

adjustable

3-terminal

2

•

Output Voltage Adjustable from

−1.2V to −37V

negative voltage regulators capable of supplying in

•

1.5A Output Current Specified,

−55°C to

excess of

−1.5A over an output voltage range of

+150°C

−1.2V to −37V. These regulators are exceptionally

•

Line Regulation Typically 0.01%/V

easy to apply, requiring only 2 external resistors to

set the output voltage and 1 output capacitor for

•

Load Regulation Typically 0.3%

frequency compensation. The circuit design has been

•

Excellent Thermal Regulation, 0.002%/W

optimized for excellent regulation and low thermal

•

77 dB Ripple Rejection

transients. Further, the LM137 series features internal

current limiting, thermal shutdown and safe-area

•

Excellent Rejection of Thermal Transients

compensation, making them virtually blowout-proof

•

50 ppm/°C Temperature Coefficient

against overloads.

•

Temperature-independent Current Limit

The

LM137/LM337-N

serve

a

wide

variety

of

•

Internal Thermal Overload Protection

applications

including

local

on-card

regulation,

•

programmable-output voltage regulation or precision

current regulation. The LM137/LM337-N are ideal

•

Standard 3-lead Transistor Package

complements

to

the

LM117/LM317

adjustable

•

Output is Short Circuit Protected

positive regulators.

Table 1. LM137 Series Packages and Power

Capability

Device

Package

Rated Power

Design

Dissipation

Load

Current

LM137/337-N

TO-3 (K)

20W

1.5A

TO (NDT)

2W

0.5A

LM337-N

TO-220 (NDE)

15W

1.5A

LM337-N

SOT-223 (DCY)

2W

1A

1

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

2

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PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2013, 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.