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GS-R51212S Datasheet PDF

STMicroelectronics GS-R51212S

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 programmable input for the correct system start-up. The auxiliary outputs (±12V or ±15V) are externally adjustable in a very wide range, i.e.
Part No. GS-R51212S
Datasheet GS-R51212S Download
Manufacturer
STMicroelectronics
Description 31WTRIPLE OUTPUT STEP-DOWN SWITCHING REGULATORS
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GS-R51212S datasheet page 1 preview

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

ABSOLUTE MAXIMUM RATINGS

Symbol Vi Irs DC Input Voltage Reset Output Sink Current Parameter Value 44 20 Unit V mA The Inhibit/Enable pin allows the ON/OFF logic function with TTL/CMOS compatible input signal. from ±4.25V to ±12.45V on GS-R51212S and from ±4.50V to ±15.25V (typical values) on GS-R51515S. June 1994 1/8 GS-R51212S/GS-R51515S

ELECTRICAL CHARACTERISTICS

(Tamb = 25°C unless otherwise specified) Symbol Vi Parameter Input Voltage GS-R51212S Input Voltage GS-R51515S Input Reflected Current Input Reflected Current Enable Input Voltage Enable Input Current Inhibit Input Voltage Output Voltage 1 Test Conditions Vo1 = +5.1V Vo2 = +12V Vo3 = – 12V Vo1 = +5.1V Vo2 = +15V Vo3 = – 15V Io1 = 4.5A Io2 = 0.35A Io3 = – 0.35A I...
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