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LM137 Product Folder

3-Terminal Adjustable Negative Regulator

Generic P/N 137

General
Description

Package
& Models

Samples
& Pricing

Application
Notes

Parametric Table

Parametric Table

Temperature Min (deg C)	-55
Temperature Max (deg C)	150
Multiple Output Capability	No
On/Off Pin	No
Error Flag	-
InputMin Voltage (Volt)	-40

InputMax Voltage (Volt)	-4.20
Output Current (mA)	1500
Watchdog	No
RegType	Linear Regulator
Output Min (Volt)	-37
Output Max (Volt)	-1.20

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM137 LM337 3-Terminal Adjustable Negative Regulators	421 Kbytes	10-Dec-01	View Online	Download	Receive via Email
LM137 Mil-Aero (DESC) Datasheet MDLM137-H	12 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero (DESC) Datasheet MDLM137-K	12 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero (JAN) Datasheet MJLM137-H	104 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero (JAN) Datasheet MJLM137-K	111 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero Datasheet MNLM137-K	110 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero Datasheet MNLM137-WG	126 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero Datasheet MNLM137-X	197 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero Datasheet MNLM137A-H	15 Kbytes		View Online	Download	Receive via Email
LM137 Mil-Aero Datasheet MRLM137-K-RH	113 Kbytes		View Online	Download	Receive via Email

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Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM137H

3

Full production

N/A

N/A

250+

$6.25

bag
of
500

NSZXYTT LM137HP+

4-6 weeks

3000

LM137AH/883

3

Full production

N/A

N/A

50+

$14.00

tray
of
20

NS ZSSXXYYA>
LM137AH/883QL

8-11 weeks

500

7703403XA

3

Full production

N/A

N/A

50+

$6.50

tray
of
20

NS ZSSXXYYA>
27014 7703403XA

8-12 weeks

500

LM137H/883

3

Full production

N/A

N/A

50+

$6.50

tray
of
20

NS ZSSXXYYA>
LM137H/883QL

8-11 weeks

500

7703403YA

2

Full production

N/A

N/A

50+

$8.25

tray
of
50

NSZSSXXYYA
7703403YA
27014 QL>

8-10 weeks

500

LM137K/883

2

Full production

N/A

N/A

50+

$8.25

tray
of
50

NSZSSXXYYA
LM137K/883
QL >

8-10 weeks

500

LM137WG/883

16

Full production

N/A

N/A

50+

$11.00

tray
of
42

NSZSSXXYYA>
LM137WG/883Q

8 weeks

0

JM38510/11803BXA

3

Full production

N/A

N/A

50+

$29.90

tray
of
20

NS ZSSXXYYA 27014 QL
JM38510/11803BXA >

8-10 weeks

500

JM38510/11804BYA

2

Full production

N/A

N/A

50+

$19.50

tray
of
50

NSZSSXXYYA
JM38510/
11804BYA
27014 QS >

8-12 weeks

500

JM38510/11803SXA

3

Full production

N/A

N/A

50+

$194.00

tray
of
20

NS ZSSXXYYA>
JM38510/11803SXA

10-13 weeks

500

JM38510/11804SYA

2

Full production

N/A

N/A

50+

$200.00

tray
of
50

NSZSSXXYYA
JM38510/
11804SYA
27014

N/A

0

5962P9951702VYA

2

Full production

N/A

N/A

50+

$202.00

tray
of
50

NSZSSXXYYA
LM137KPQMLV
5962P99517
02VYA >

N/A

0

5962-9951701VZA

16

Full production

N/A

N/A

50+

$199.00

tray
of
42

NSZSSXXYYA>
LM137WG-
QMLV 5962
9951701VZA

N/A

0

LM137K MDA

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LM137KG MDA

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LM137H MD8

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LM137H MDS

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LM137K MDS

Full production

N/A

N/A

tray
of
N/A

-

N/A

0

LM137KG MWA

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

LM137H MW8

Full production

N/A

N/A

wafer jar
of
N/A

-

N/A

0

Obsolete Parts

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM137AK/883	LM137K/883	NATIONAL SEMICONDUCTOR	06/07/2001
LM137H-MLS	JL137SXA	NATIONAL SEMICONDUCTOR	12/08/98
LM137HVH	LM337HVH	NATIONAL SEMICONDUCTOR	07/15/95
LM137HVK STEEL	LM337HVK STL	NATIONAL SEMICONDUCTOR	06/14/94
LM137K STEEL	LM337K STEEL	NATIONAL SEMICONDUCTOR	06/14/94

General Description

The LM137/LM337 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of -1.5A over an output voltage range of -1.2V to -37V. These regulators are exceptionally easy to apply, requiring only 2 external resistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 series features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads.

The LM137/LM337 serve a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM137/LM337 are ideal complements to the LM117/LM317 adjustable positive regulators.

Features

Output voltage adjustable from -1.2V to -37V
1.5A output current guaranteed, -55°C to +150°C
Line regulation typically 0.01%/V
Load regulation typically 0.3%
Excellent thermal regulation, 0.002%/W
77 dB ripple rejection
Excellent rejection of thermal transients
50 ppm/°C temperature coefficient
Temperature-independent current limit
Internal thermal overload protection
P⁺ Product Enhancement tested
Standard 3-lead transistor package
Output is short circuit protected

LM137 Series Packages and Power Capability

		Rated	Design
Device	Package	Power	Load
		Dissipation	Current
LM137/337	TO-3 (K)	20W	1.5A
	TO-39 (H)	2W	0.5A
LM337	TO-220 (T)	15W	1.5A
LM337	SOT-223 (MP)	2W	1A

Application Notes

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
AN-1148: Application Note 1148 Linear Regulators: Theory of Operation and Compensation	200 Kbytes	25-Sep-02	View Online	Download	Receive via Email
AN-1149: Application Note 1149 Layout Guidelines for Switching Power Supplies	113 Kbytes	26-Sep-02	View Online	Download	Receive via Email
AN-182: Application Note 182 Improving Power Supply Reliability with IC Power Regulators	56 Kbytes	3-Oct-02	View Online	Download	Receive via Email
AN-556: Application Note 556 Introduction to Power Supplies	159 Kbytes	25-Sep-02	View Online	Download	Receive via Email
LB-46: Linear Brief 46 A New Production Technique for Trimming Voltage Regulators	71 Kbytes	3-Oct-02	View Online	Download	Receive via Email

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[Information as of 15-Jan-2004]