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SC475A

Semtech Corporation
Part Number SC475A
Manufacturer Semtech Corporation
Description Synchronous Buck Controller
Published May 9, 2008
Detailed Description Synchronous Buck Controller with Dual-Level VOUT Transition Support POWER POWERMANAGEMENT MANAGEMENT Description The SC4...
Datasheet PDF File SC475A PDF File

SC475A
SC475A

Overview
Synchronous Buck Controller with Dual-Level VOUT Transition Support POWER POWERMANAGEMENT MANAGEMENT Description The SC475A is a versatile, constant on-time synchronous buck, pseudo-fixed-frequency, PWM controller intended for notebook computers and other battery operated portable devices.
The SC475A contains all the features needed to provide cost-effective control of system elements needing voltage slewing.
An integrated switch provides two resistorprogrammable DC output voltages controlled by the G0 input.
www.
DataSheet4U.
com SC475A Features VOUT Programmable 0.
75V to 5.
25V with Integrated Transition Support VBAT Range 3V to 25V Soft Shutoff at Output Current Sense Using Low-side RDS(ON) or Resistor Sensing Adjustable Cycle-by-Cycle Valley Current Limit 325kHz Fixed-Frequency Constant On-Time for Fast Dynamic Response and Reduced Output Capacitance Automatic Smart Power Save† Internal Soft-Start Over-Voltage/Under-Voltage Fault Protection Power Good Output with Transition Blanking ...


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