JM38510/11501BXA National Semiconductor, JM38510/11501BXA Datasheet

JM38510/11501BXA

Manufacturer Part Number

JM38510/11501BXA

Description

Manufacturer

National Semiconductor

Datasheet

1.JM3851011501BXA.pdf (20 pages)

Specifications of JM38510/11501BXA

Case

CAN

Date_code

06+

Current page: 1 of 20
Download datasheet (740Kb)

LM120/LM320

Series 3-Terminal Negative Regulators

General Description

The LM120 series are three-terminal negative regulators with

a fixed output voltage of −5V, −12V, and −15V, and up to 1.5A

load current capability. Where other voltages are required, the

LM137 and LM137HV series provide an output voltage range

of −1.2V to −47V.

The LM120 need only one external component—a compen-

sation capacitor at the output, making them easy to apply.

Worst case guarantees on output voltage deviation due to any

combination of line, load or temperature variation assure sat-

isfactory system operation.

Exceptional effort has been made to make the LM120 Series

immune to overload conditions. The regulators have current

limiting which is independent of temperature, combined with

thermal overload protection. Internal current limiting protects

against momentary faults while thermal shutdown prevents

junction temperatures from exceeding safe limits during pro-

longed overloads.

Although primarily intended for fixed output voltage applica-

tions, the LM120 Series may be programmed for higher out-

put voltages with a simple resistive divider. The low quiescent

Typical Applications

Dual Trimmed Supply

7767

776703

drain current of the devices allows this technique to be used

with good regulation.

Features

■

*Required if regulator is separated from filter capacitor by more than 3 inch-

es. For value given, capacitor must be solid tantalum. 25 μF aluminum

electrolytic may be substituted.

†Required for stability. For value given, capacitor must be solid tantalum. 25

μF aluminum electrolytic may be substituted. Values given may be increased

without limit.

For output capacitance in excess of 100 μF, a high current diode from input

to output (1N4001, etc.) will protect the regulator from momentary input

shorts.

LM120/LM320 TO-3 (K)

LM320

Preset output voltage error less than ±3%

Preset current limit

Internal thermal shutdown

Operates with input-output voltage differential down to 1V

Excellent ripple rejection

Low temperature drift

Easily adjustable to higher output voltage

Device

LM120 Series Packages and Power Capability

TO-39 (H)

TO-220 (T)

Package

Fixed Regulator

Dissipation

Power

Rated

20W

15W

November 15, 2007

www.national.com

776702

Current

Design

Load

1.5A

0.5A

1.5A

Related parts for JM38510/11501BXA

Related keywords

JM38510/11501BXA datasheet
JM38510/11501BXA data sheet
JM38510/11501BXA pdf datasheet
JM38510/11501BXA component
JM38510/11501BXA part
JM38510/11501BXA distributor
JM38510/11501BXA RoHS
JM38510/11501BXA datasheet download