Various RT9202 free download

File name RT9202.pdf

RT9202 Single Synchronous Buck PWM DC-DC Controller General Description Features The RT9202 is a single power supply PWM DC-DC l Operate From 5V converter controller designed to drive N-Channel l 0.8V Internal Reference MOSFET in a synchronous buck topology. The IC l Drive Two N-Channel MOSFETs integrates the control, output adjustment, monitoring and l Voltage Mode PWM Control protection functions in a small 8-pin package. l Fast Transient Response l Fixed 300kHz Oscillator Frequency The RT9202 uses a low gain voltage mode PWM control l Full 0 to 100% Duty Cycle for simple application design. An internal 0.8V reference l Internal Soft Start allows the output voltage to be precisely regulated to l Adaptive Non-Overlapping Gate Driver low voltage requirement. A fixed 300kHz oscillator l Over-Current Monitor Uses MOSFET RDS(ON) reduces the component size for saving board space. l Over-Voltage Protection Uses Low-Side MOSFET The RT9202 features over current protection, over l RoHS Compliant and 100% Lead (Pb)-Free voltage protection, and under voltage lock-out. The output current is monitored by sensing the voltage drop across Applications the MOSFET's RDS(ON), which eliminates the need for a l Motherboard Power Regulation for Computers current sensing resistor. l Subsystems Power Supplies l Cable Modems, Set Top Box, and DSL Modems Ordering Information l DSP and Core Communications processor Supplies RT9202 l Memory Power Supplies l Personal Computer Peripherals Package Type l Industrial Power Supplies S : SOP-8 l 5V-Input DC-DC Regulators Operating Temperature Range l Low Voltage Distributed Power Supplies C : Commercial Standard P : Pb Free with Commercial Standard Pin Configurations Note : RichTek Pb-free products are :