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79L15 Datasheet Preview

79L15 Datasheet

3-Terminal Negative Regulator

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LM79L05AC is OBSOLETE
www.ti.com
LM79L05, LM79L12, LM79L12AC
LM79L15, LM79L15AC
SNOSBR8K – JULY 1999 – REVISED APRIL 2013
LM79LXXAC Series 3-Terminal Negative Regulators
Check for Samples: LM79L05, LM79L12, LM79L12AC, LM79L15, LM79L15AC
FEATURES
1
2 Preset Output Voltage Error is Less than ±5%
Over Load, 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%
VOUT/V
• Maximum Load Regulation Less than 0.01%
VOUT/mA
• See AN-1112 (SNVA009) for DSBGA
Considerations
DESCRIPTION
The LM79LXXAC 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, when combined with a minimum
output capacitor of 0.1μF, exhibits an excellent
transient response, a maximum line regulation of
0.07% VO/V, and a maximum load regulation of
0.01% VO/mA.
The 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 package, the 8-lead SOIC
package, and the 6-Bump DSBGA package.
For output voltages other than the pre-set -5V, -12V
and -15V, the LM137L series provides an adjustable
output voltage range from -1.2V to -47V.
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.
Figure 1. Fixed Output Regulator
V0 = 5V (5V/R1 + IQ) • R2,
5V/R1 > 3 IQ
Figure 2. Adjustable Output Regulator
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1999–2013, Texas Instruments Incorporated




etcTI

79L15 Datasheet Preview

79L15 Datasheet

3-Terminal Negative Regulator

No Preview Available !

LM79L05, LM79L12, LM79L12AC
LM79L15, LM79L15AC
SNOSBR8K – JULY 1999 – REVISED APRIL 2013
LM79L05AC is OBSOLETE
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Connection Diagram
-VOUT 1
-VIN 2
-VIN 3
NC 4
8 NC
7 -VIN
6 -VIN
5 GND
Pins labeled 'NC' on LM79LXXACM 8-Lead SOIC (pin 4 and pin 8) are Open, no internal connection.
Figure 3. 8-Lead SOIC Narrow (D)
Top View
Figure 4. 3–Lead TO-226 (LP)
Bottom View
GND
-VOUT
-VIN
A2
B2
C2
A1
B1
C1
GND
-VOUT
-VIN
Figure 5. 6-Bump DSBGA
Top View (Bump Side Down)
2
Submit Documentation Feedback
Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM79L05 LM79L12 LM79L12AC LM79L15 LM79L15AC


Part Number 79L15
Description 3-Terminal Negative Regulator
Maker etcTI
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79L15 Datasheet PDF






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