RT6220 Datasheet | Richtek

Description The RT6220 is a synchronous buck converter with Advanced Constant On-Time (ACOT® ) mode control, which provides a very fast transient response with no external pensators. The RT6220 operates from 4.5V to 23V input voltage, provides plete protection functions including Current Limit Protection, Undervoltage Protection (UVP) and Overvoltage Protection (OVP). This IC also provides a 1.5ms internal soft-start function and an open-drain powergood indicator. The remended junction temperature range is - 40C to 125C, and the ambient temperature range is - 40C to 85C. 2 Ordering Information RT6220 Package Type(1) QUF: UQFN-16L 3x3 (FC) (U-Type) Lead Plating System G: Richtek Green Policy pliant(2) PWM Operation / VOUT Protection A: DEM/Latch AH: DEM/Hiccup BL: FCCM/Latch BH: FCCM/Hiccup Note 1. - Marked with (1) indicated: patible with the current requirements of IPC/JEDEC J-STD-020. - Marked with (2) indicated: Richtek products are Richtek Green Policy pliant. 3 Features - 4.5V to 23V Input Voltage Range - Adjustable from 0.6V to 5V Output Range - Up to 98% Duty for 2S Battery Application - 500k Hz Switching Frequency - ACOT® Mode Performs Fast Transient Response - Integrated MOSFETs - 31m of High-Side MOSFET - 20m of Low-Side MOSFET - Supports MLCC Output Capacitors - Internal Soft-Start (1.5ms Typical) - Built-In OVP/UVP/Current Limit Protection - Power-Good Indicator - Over-Temperature Protection 4 Applications - Laptop puters - Tablet PCs - Networking Systems - Servers - Personal Video Recorders - Flat Panel Television and Monitors - Distributed Power Systems 5 Simplified Application Circuit VIN Chip Enable VSYS RBYP...