GS-R51212S Datasheet, PDF (1/8 Pages) STMicroelectronics – 31WTRIPLE OUTPUT STEP-DOWN SWITCHING REGULATORS

GS-R51212S
GS-R51515S
31W TRIPLE OUTPUT STEP-DOWN SWITCHING REGULATORS
Type
GS-R51212S
GS-R51515S
V_i
15 to 40 V
15 to 40 V
V_o
+ 5,1 V
± 12 V
+ 5,1 V
± 15 V
I_o
4,5 A
0,35 A
4,5 A
0,3 A
FEATURES
5.1V/4.5A and ±12V/0.35A or ±15V/0.3A output
voltages
±12 or ±15V externally adjustable
High efficiency (81% typ.)
Short-circuit protection
Reset output
Power Fail programmable input
Inhibit/Enable control input
Soft-start
PCB or chassis mounting
DESCRIPTION
The GS-R51212S and GS-R51515S are versatile
triple output, high current step-down switching
regulators that provide +5.1V/4.5A output voltage
and an isolated ±12V/0.35A or ±15V/0.3A dual
output voltage.
They are ideal for microprocessor based boards
because power the logic and the communication
ports and have Reset output and Power Fail pro-
grammable input for the correct system start-up.
The Inhibit/Enable pin allows the ON/OFF logic
function with TTL/CMOS compatible input signal.
The auxiliary outputs (±12V or ±15V) are externally
adjustable in a very wide range, i.e. from ±4.25V to
±12.45V on GS-R51212S and from ±4.50V to
±15.25V (typical values) on GS-R51515S.
ABSOLUTE MAXIMUM RATINGS
Symbol
Vi
Irs
Parameter
DC Input Voltage
Reset Output Sink Current
Value
Unit
44
V
20
mA
June 1994
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