LM79L12ACM National Semiconductor, LM79L12ACM Datasheet

LM79L12ACM

Manufacturer Part Number

LM79L12ACM

Description

Linear Voltage Regulator IC

Manufacturer

National Semiconductor

Datasheet

1.LM79L12ACM.pdf (8 pages)

Specifications of LM79L12ACM

Dropout Voltage Vdo

2.5V

No. Of Pins

Output Current

0.1A

Operating Temperature Range

0Â°C To +70Â°C

Termination Type

SMD

Mounting Type

Surface Mount

Voltage Regulator Type

LDO Linear

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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LM320L/LM79LXXAC Series

3-Terminal Negative Regulators

General Description

The LM320L/LM79LXXAC dual marked series of 3-terminal

negative voltage regulators features fixed output voltages of

−5V, −12V, and −15V with output current capabilities in

excess of 100mA. These devices were designed using the

latest computer techniques for optimizing the packaged IC

thermal/electrical performance. The LM79LXXAC series,

even when combined with a minimum output compensation

capacitor of 0.1µF, exhibits an excellent transient response,

a maximum line regulation of 0.07% V

load regulation of 0.01% V

The LM320L/LM79LXXAC series also includes, as self-

protection circuitry: safe operating area circuitry for output

transistor power dissipation limiting, a temperature indepen-

dent short circuit current limit for peak output current limiting,

and a thermal shutdown circuit to prevent excessive junction

temperature. Although designed primarily as fixed voltage

regulators, these devices may be combined with simple

external circuitry for boosted and/or adjustable voltages and

currents. The LM79LXXAC series is available in the 3-lead

Typical Applications

*Required if the regulator is located far from the power supply filter. A 1µF

aluminum electrolytic may be substituted.

**Required for stability. A 1µF aluminum electrolytic may be substituted.

Connection Diagrams

Fixed Output Regulator

6-Bump micro SMD

Bump Side Down

/mA.

00774820

DS007748

/V, and a maximum

00774801

TO-92 package, 8-lead SOIC package, and the 6-Bump

micro SMD package. The LM320L series is available in the

3-lead TO-92 package.

For output voltage other than −5V, −12V and −15V, the

LM137L series provides an output voltage range from 1.2V

to 47V.

Features

n Preset output voltage error is less than

n Specified at an output current of 100mA

n Easily compensated with a small 0.1µF output

n Internal short-circuit, thermal and safe operating area

n Easily adjustable to higher output voltages

n Maximum line regulation less than 0.07% V

n Maximum load regulation less than 0.01% V

n See AN-1112 for micro SMD considerations

−V

5V/R1

line and temperature

protection

capacitor

= −5V − (5V/R1 + I

3 I

Adjustable Output Regulator

TO-92 Plastic Package (Z)

) • R2,

Bottom View

00774802

5% overload,

www.national.com

OUT

March 2006

/mA

00774803

Related parts for LM79L12ACM

LM79L12ACM Summary of contents

Page 1

... Connection Diagrams 6-Bump micro SMD 00774820 Bump Side Down © 2006 National Semiconductor Corporation TO-92 package, 8-lead SOIC package, and the 6-Bump micro SMD package. The LM320L series is available in the 3-lead TO-92 package. For output voltage other than −5V, −12V and −15V, the LM137L series provides an output voltage range from 1 ...

Page 2

... SO-8 Plastic (Narrow Body) 00774804 Top View Package Marking Transport Media LM79L05ACM 95 Units/Rail 2.5k Units Tape and Reel LM79L12ACM 95 Units/Rail 2.5k Units Tape and Reel LM79L15ACM 95 Units/Rail 2.5k Units Tape and Reel 320L79L05 1800 Units Per Box 320L79L12 1800 Units Per Box ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage V = −5V, −12V, −15V O Internal Power Dissipation (Note 2) Electrical Characteristics T = 0˚C to +70˚C unless otherwise noted. A Output Voltage Input Voltage (unless otherwise noted) ...

Page 4

Typical Performance Characteristics Maximum Average Power Dissipation (TO-92) Short Circuit Output Current Ripple Rejection www.national.com Peak Output Current 00774811 00774813 Output Voltage vs. Temperature (Normalized to 1V 00774815 4 00774812 Dropout Voltage 00774814 @ 25˚C) 00774816 ...

Page 5

Typical Performance Characteristics Quiescent Current Typical Applications (Continued) 00774817 ± 15V, 100mA Dual Power Supply 5 Output Impedance 00774818 00774806 www.national.com ...

Page 6

Schematic Diagrams www.national.com −5V −12V and −15V 6 00774809 00774810 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted SOIC Package (M) NS Package Number M08A Molded Offset TO-92 (Z) NS Package Number Z03A 7 www.national.com ...

Page 8

... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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