Various rt9214 free download

File name rt9214.PDF

RT9214 5V/12V Synchronous Buck PWM DC-DC Controller General Description Features The RT9214 is a high efficiency synchronous buck PWM Operating with 5V or 12V Supply Voltage controllers that generate logic-supply voltages in PC based Drives All Low Cost N-Channel MOSFETs systems. These high performance , single output devices Voltage Mode PWM Control include internal soft-start, frequency compensation 300kHz Fixed Frequency Oscillator networks and integrates all of the control, output Fast Transient Response : adjustment, monitoring and protection functions into a High-Speed GM Amplifier single package. Full 0 to 100% Duty Ratio Internal Soft-Start The device operating at fixed 300kHz frequency provides Adaptive Non-Overlapping Gate Driver an optimum compromise between efficiency, external Over-Current Fault Monitor on MOSFET, No component size, and cost. Current Sense Resistor Required Adjustable over-current protection (OCP) monitors the RoHS Compliant and 100% Lead (Pb)-Free voltage drop across the RDS(ON) of the lower MOSFET for synchronous buck PWM DC-DC controller. The over- Applications current function cycles the soft-start in 4-times hiccup Graphic Card mode to provide fault protection, and in an always hiccup Motherboard, Desktop Servers mode for under-voltage protection. IA Equipments Telecomm Equipments Ordering Information High Power DC-DC Regulators RT9214 Package Type Pin Configurations S : SOP-8 (TOP VIEW) SP : SOP-8 (Exposed Pad-Option 1) Operating Temperature Range BOOT 8 PHASE P : Pb Free with Commercial Standard UGATE 2 7 OPS GND 3 6 FB G : Green (Halogen Free with Commer- LGATE 4 5 VCC cial Standard) Note : SOP-8 Richtek Pb-free and Green products are : RoHS compliant and compatible with the current require- BOOT PHASE