SS7529 Datasheet PDF | Silicon Standard

Silicon Standard SS7529

The SS7529 consists of a dual-output power controller and the protection circuits in a single SO-14 package for graphic cards and other applications. The dual-output power controller provides regulation by driving two N-MOSFETs in a synchronous rectified buck converter, and one N-MOSFET in a linear configuration. The synchronous rectified buck converter provides simple, single feedback loop, voltage mode control with fast transient response, from an internal 0.8V temperaturecompensated reference voltage.

Part No.	SS7529
Datasheet	SS7529 Download
Manufacturer	Silicon Standard
Description	Synchronous Buck PWM and Linear Power Controller
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GENERAL DESCRIPTION

A fixed 600kHz frequency oscillator reduces design complexity, while balancing typical application cost and efficiency. The internal soft-start function and the 12V direct drive on the switching output help to save the bootstrap circuit. Furthermore, the internal POR (power on reset) helps to prevent the system from sequencing issues during the startup and turn-off. Reacting to fault conditions, the SS7529 will shutdown both outputs when the voltage on either FB or FB2 pins drops below 51% of their nominal value.

APPLICATIONS

Graphics-GPU and memory supplies ASIC power supplies Embedded processor and I/O supplies Cable Modem, Set Top Box, and DSL Modems DSP and Core Communications Processor supplies

TYPICAL APPLICATIONS

Vin (3.3V or 5V) 5V 12V Q3 5VCC 12VCC DRIVE2 FB2 Linear Controller Control Logic Shutdown Vout Vref UGATE Q1 Error Amp FB Comp Vout LGATE Q2 OSC PGND GND Rev.1.01 4/26/2004 1 of 8 Datasheet pdf - SS7529 ORDERING INFORMATION SS7529CSXX Packing: TB: tu...