G5338 - Global Mixed-mode Technology

G5338 High-Speed Step-Down Controller

G5338 uses constant on-time control scheme to handle wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The G5338 achiev.

Features

„ Ultra-High Efficiency „ 4700ppm/°C RDS(ON) Current Sensing ( without Current-Sense Resistor ) „ Quasi-PWM with 100ns Load-Step Response „ Built in 1% 0.5V Reference Voltage „ 0.5V to 3.3V Adjustable Output Range „ 4.5V to 28V Battery Input Range „ Integrated Boost Diode „ OVP & UVP „ 1.5ms Voltage Servo Soft-Start „ Drives Large Synchronous-Rectifier FETs „ Power-Good Indicator „ Thermal Shutdown (Non-latch) Applications „ Notebook Computers „ CPU Core Supply „ I/O Supply „ Chipset/RAM Supply as Low as 0.5V Ordering Information ORDER NUMBER G5338K71U Note: K7: TQFN2X2-12 1: Bonding Code U .