RT8202M - Richtek

RT8202M (RT8202L/M) Single Synchronous Buck Controller

The RT8202L/M PWM controller provides the high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100n.

Features

z z Ultra-High Efficiency Resistor Programmable Current Limit by Low Side RDS(ON) Sense (Lossless Limit) 4700ppm/°C RDS(ON) Current Sensing Quick Load Step Response within 100ns 1% VFB Accuracy over Line and Load Adjustable 0.75V to 3.3V Output Voltage Range 3V to 26V Battery Input Voltage Range Resistor Programmable Frequency Integrated Bootstrap Switch Over Voltage Protection Under Voltage Protection Voltage Ramp Soft-Start Built In Soft Discharge Output Power Good Indicator RoHS Compliant and 100% Halogen Free z z z z z z z z z z z z z Ordering Information RT8202L/M Package Type QW : WQF.