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RT9202CS 数据表(PDF) 1 Page - Richtek Technology Corporation |
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RT9202CS 数据表(HTML) 1 Page - Richtek Technology Corporation |
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1 / 16 page  RT9202 DS9202-02 August 2002 www.richtek.com 1 Single Synchronous Buck PWM DC-DC Controller General Description The RT9202 is a single power supply PWM DC-DC converter controller designed to drive N-channel MOSFET in a synchronous buck topology. The IC integrates the control, output adjustment, monitoring and protection functions in a small 8-pin package. The RT9202 uses a low gain voltage mode PWM control for simple application design. An internal 0.8V reference allows the output voltage to be precisely regulated to low voltage requirement. A fixed 300kHz oscillator reduces the component size for saving board space. The RT9202 features over current protection, over voltage protection, and under voltage lock-out. The output current is monitored by sensing the voltage drop across the MOSFET’s RDS(ON), which eliminates the need for a current sensing resistor. Applications Motherboard Power Regulation for Computers Subsystems Power Supplies Cable Modems, Set Top Box, and DSL Modems DSP and Core Communications processor Supplies Memory Power Supplies Personal Computer Peripherals Industrial Power Supplies 5V-Input DC-DC Regulators Low Voltage Distributed Power Supplies Features Operate from 5V 0.8V Internal Reference Drive Two N-channel MOSFET Voltage Mode PWM Control Fast Transient Response Fixed 300kHz Oscillator Frequency Full 0~100% Duty Cycle Internal Soft Start Adaptive Non-overlapping Gate Driver Over-current Monitor Uses MOSFET RDS(ON) Over-voltage Protection Uses Low-side MOSFET Pin Configurations Part Number Pin Configurations RT9202CS (Plastic SOP-8) TOP VIEW Ordering Information RT9202 Operating temperature range C: Commercial standard Package type S : SOP-8 BOOT UGATE GND LGATE PHASE OCSET FB VCC 1 2 3 4 8 7 6 5 |
类似零件编号 - RT9202CS |
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类似说明 - RT9202CS |
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