RT2859A - Richtek

RT2859A Synchronous Step-Down Converter

The RT2859A/B are high-performance 650kHz 3A step-down regulators with internal power switches and synchronous rectifiers. They feature quick transient response using their Advanced Constant On-Time (ACOT® ) control architecture that provides stable operation with small ceramic output capacitors and without complicated external compensation, among other bene.

Features

a power-saving discontinuous operating mode at light loads. The recommended junction temperature range is −40C to 125C and ambient temperature range is −40C to 85C. 2 Features
⚫ Fast Transient Response
⚫ Steady 650kHz Switching Frequency at all Load Current (RT2859B)
⚫ Discontinuous Operating Mode at Light Load (RT2859A)
⚫ 3A Output Current
⚫ Advanced Constant On-Time (ACOT® Control
⚫ Optimized for Ceramic Output Capacitors
⚫ 4.5V to 18V Input Voltage Range
⚫ Internal 70m Switch and 70m Synchronous Rectifier
⚫ 0.765V to 7V Adjustable Output Voltage
⚫ Externally-Adjustable, Pre-Biased Co.