RT6575K - Richtek

RT6575K High Efficiency Single Synchronous DC-DC Step-Down Controller

RT6575K is a single-channel step-down controller generating supply voltage for battery-powered systems. It includes a Pulse-Width Modulation (PWM) controller adjustable from 2V to 5.5V, and a fixed 5V linear regulator. The linear regulator provides up to 100mA output current. Other features include on-board powerup sequencing, a power-good output, internal s.

Features

include on-board powerup sequencing, a power-good output, internal soft-start, and soft-discharge output that prevents negative voltage during shutdown. A constant current ripple PWM control scheme operates without sense resistors and provides 100ns response to load transient. For maximizing power efficiency, the RT6575K automatically switches to the diode-emulation mode in light load applications. The RT6575K is available in the VQFN-16L 3x3 package. Features
⚫ CCRCOT Control with 100ns Load Step Response
⚫ PWM Maximum Duty Ratio > 98%
⚫ 5V to 25V Input Voltage Range
⚫ 2V to 5.5V Output Volt.