Various RT8202-DS8202AB-05 free download

File name RT8202-DS8202AB-05.pdf

RT8202/A/B Single Synchronous Buck Controller General Description Features The RT8202/A/B PWM controller provides high efficiency, Ultra-High Efficiency excellent transient response, and high DC output accuracy Resistor Programmable Current Limit by Low Side needed for stepping down high voltage batteries to RDS(ON) Sense (Lossless Limit) or Sense Resistor generate low voltage CPU core, I/O, and chipset RAM (High Accuracy) supplies in notebook computers. Quick Load Step Response within 100ns 1% VOUT Accuracy over Line and Load The constant on-time PWM control scheme handles wide Adjustable 0.75V to 3.3V Output Range input/output voltage ratios with ease and provides 100ns 4.5V to 26V Battery Input Range "instant-on" response to load transients while maintaining Resistor Programmable Frequency a relatively constant switching frequency. Over/Under Voltage Protection The RT8202/A/B achieves high efficiency at a reduced 2 Steps Current Limit During Soft-Start cost by eliminating the current sense resistor found in Drives Large Synchronous-Rectifier FETs traditional current mode PWMs. Efficiency is further Power Good Indicator enhanced by its ability to drive very large synchronous RoHS Compliant and 100% Lead (Pb)-Free rectifier MOSFETs. The buck conversion allows this device to directly step down high voltage batteries for the highest Applications possible efficiency. The RT8202/A/B is intended for CPU Notebook Computers core, chipset, DRAM, or other low voltage supplies as CPU Core Supply low as 0.75V. RT8202 is available in WQFN-16L 4x4, Chipset/RAM Supply as Low as 0.75V RT8202A is available in WQFN-16L 3x3 and RT8202B is available in WQFN-14L 3.5x3.5 packages. Pin Configurations (TOP VIEW) Ordering Information EN/DEM BOOT RT8202/A/B TON NC Packa