SG79xxA / SG79xx
PRODUCT DATASHEET
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
WWW.Microsemi .COM
Copyright © 1997
Rev. 1.6, 2010-07-16
Negative Fixed Voltage Regulator
TM
®
DESCRIPTION
The SG79xxA/SG79xx series of negative
regulators offer self-contained, fixed-
voltage capability with up to 1.5A of load
current and input voltage up to -30V. With
a variety of output voltages this regulator
series is an optimum complement to the
SG7800A/SG7800 positive three terminal
regulators.
These units feature a unique band gap
reference which allows the SG79xxA
series to be specified with an output
voltage tolerance of ±1.5%.
The SG79xxA versions also offer much
improved line regulation characteristics.
All protective features of thermal
shutdown, current limiting, and safe-area
control have been designed into these units
and since these regulators require only a
single output capacitor (SG79xx series) or a
capacitor and 5mA minimum load (SG120
series) for satisfactory performance, ease of
application is assured.
Although designed as fixed-voltage
regulators, the output voltage can be
increased through the use of a simple
voltage divider. The low quiescent drain
current of the device insures good regulation
when this method is used.
These devices are available in
hermetically sealed TO-257 (both case
grounded ‘G’ and isolated ‘IG’), TO-3, TO-
39 and LCC packages.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATURES
Output Voltage Set Internally to
±1.5% on SG79xxA
Output Current to 1.5A
Excellent Line and Load Regulation
Foldback Current Limiting
Thermal Overload Protection
Voltages Available: -5V, -12V, -15V
Contact Factory for Other Voltage
Options
Available in Surface Mount Package
HIGH RELIABILITY FEATURES
- SG79xxA/SG79xx
Available to MIL-STD - 883, ¶ 1.2.1
MIL-M38510/11501BXA - JAN7905T
MIL-M38510/11505BYA - JAN7905K
MIL-M38510/11502BXA - JAN7912T
MIL-M38510/11506BYA - JAN7912K
MIL-M38510/11503BXA - JAN7915T
MIL-M38510/11507BYA - JAN7915K
MIL-M38510/11508BYA - JAN7924K
MSC-AMSG level "S" Processing Available
Available to DSCC
– Standard Microcircuit Drawing (SMD)
PRODUCT HIGHLIGHT
S
S
G
G
7
7
9
9
X
X
X
X
