µA7900 SERIES
NEGATIVE-VOLTAGE REGULATORS
www.ti.com
SLVS058H–JUNE 1976–REVISED NOVEMBER 2006
FEATURES
•
•
•
•
3-Terminal Regulators
•
•
•
High Power-Dissipation Capability
Output Current up to 1.5 A
No External Components
Internal Short-Circuit Current Limiting
Output Transistor Safe-Area Compensation
Internal Thermal-Overload Protection
KCS (TO-220) PACKAGE
(TOP VIEW)
KTE (PowerFLEX ) PACKAGE
(TOP VIEW)
KTT (TO-263) PACKAGE
(TOP VIEW)
OUTPUT
INPUT
COMMON
OUTPUT
INPUT
OUTPUT
INPUT
COMMON
COMMON
DESCRIPTION/ORDERING INFORMATION
This series of fixed-negative-voltage integrated-circuit voltage regulators is designed to complement Series
µA7900 in a wide range of applications. These applications include on-card regulation for elimination of noise
and distribution problems associated with single-point regulation. Each of these regulators can deliver up to
1.5 A of output current. The internal current limiting and thermal shutdown features of these regulators
essentially make them immune to overload. In addition to use as fixed-voltage regulators, these devices can be
used with external components to obtain adjustable output voltages and currents and also as the power-pass
element in precision regulators.
ORDERING INFORMATION(1)
ORDERABLE PART
NUMBER
TOP-SIDE
MARKING
TJ
VO(NOM)
PACKAGE(2)
–12 V
TO-220, short shoulder – KCS
Tube of 50
Reel of 2000
Tube of 50
Reel of 2000
Tube of 50
Reel of 500
UA7912CKCS
UA7912C
PowerFLEX™ – KTE
TO-220, short shoulder – KCS
PowerFLEX – KTE
UA7908CKTER
UA7908CKCS
UA7905CKTER
UA7905CKCS
UA7905CKTTR
UA7908C
UA7908C
UA7905C
UA7905C
UA7905C
–8 V
0°C to 125°C
–5 V
TO-220, short shoulder – KCS
TO-263 – KTT
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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.
PowerFLEX, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 1976–2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.