lm79l05ac-mwa National Semiconductor Corporation, lm79l05ac-mwa Datasheet

lm79l05ac-mwa

Manufacturer Part Number

lm79l05ac-mwa

Description

Series 3-terminal Negative Regulators

Manufacturer

National Semiconductor Corporation

Datasheet

1.LM79L05AC-MWA.pdf (8 pages)

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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

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lm79l05ac-mwa 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

... LM79L15ACTL micro SMD LM79L05ACTLX www.national.com (Continued) 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 ...

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 ...

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

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) NOTES: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING. 2. 63Sn/67Pb EUTECTIC BUMP. 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. 5. ...

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