LM79L05 - Series 3-Terminal Negative Regulators

Datasheet	Packaging	Samples & Pricing	Reliability	Knowledge Base

Features

•	Preset output voltage error is less than ±5% overload, line and temperature
•	Specified at an output current of 100mA
•	Easily compensated with a small 0.1µF output capacitor
•	Internal short-circuit, thermal and safe operating area protection
•	Easily adjustable to higher output voltages
•	Maximum line regulation less than 0.07% V_OUT/V
•	Maximum load regulation less than 0.01% V_OUT/mA
•	See AN-1112 for micro SMD considerations

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. More...

Typical Application

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Parameters Values

Output Current 100 mA

Output Min -5 Volt

Input Min Voltage -20 Volt

Input Max Voltage -7 Volt

Adjustable Output No

On/Off Pin No

Error Flag No

RegType Linear Regulator

Temperature Min 0 deg C

Temperature Max 70 deg C

Output Max -5 Volt

Output Voltage -5 Volt

Typical Performance

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Connection Diagram

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Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM320L/LM79LXXAC Series 3-Terminal Negative Regulators	616 Kbytes	28-Mar-06	Download

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LM79L05ACM

SOIC NARROW

NOPB
STD

1
1

260
235

RoHS

N/A

Full production

N/A

1K+

$0.27

rail
of
95

NSZXTT
LM79L
05ACM

8 weeks

2500

LM79L05ACMX

SOIC NARROW

NOPB
STD

1
1

260
235

RoHS

N/A

Full production

N/A

1K+

$0.27

reel
of
2500

NSZXTT
LM79L
05ACM

8 weeks

20000

LM79L05ACZ

TO-92

NOPB
STD

1
1

NA
NA

RoHS

N/A

Full production

N/A

1K+

$0.27

box
of
1800

NSXYTT
320L
79L05

8 weeks

5000

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM79L05AC MDA	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM79L05AC MWA	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008

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_O/V, and a maximum load regulation of 0.01% V_O/mA.

The LM320L/LM79LXXAC series also includes, as self-protection circuitry: safe operating area circuitry for output transistor power dissipation limiting, a temperature independent 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 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.

Reliability Metrics

Part Number	Process	EFR Sample Size	LTA Device Hours	FITS	MTTF (Hours)
LM79L05ACM	SLM	44046	3532500	1	1002356520
LM79L05ACMX	SLM	44046	3532500	1	1002356520
LM79L05ACZ	SLM	44046	3532500	1	1002356520

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

[Information as of 7-Nov-2009]