Richtek RT8123AGQW

降压降压4.5V ~ 13.2V

Overview

The RT8123AGQW is a high efficiency single phase synchronous buck DC/DC controller with 5V/12V supply voltage. At light load condition, the IC automatically operates in the pulse skip mode to reduce switching frequency so as to improve conversion efficiency. As the load current increases, the RT8123AGQW leaves the pulse skip mode and operates in the continuous conduction mode with fixed-frequency PWM. The RT8123AGQW has embedded MOSFET gate driver with high driving capability, supporting driving voltage up to 12V for high output current application. Other features include power good indication, external error-amp compensation, over voltage protection, over current protection, enable/disable control and internal Soft-Start. With the above functions, the IC provides customers a cost-effective solution for high efficiency power conversion. The RT8123AGQW is available in a WQFN-16L 3x3 package.

Features

Tape & Reel (TR) Package
Transistor Driver Output Type
Positive Output Configuration
Buck Topology
1 Number of Outputs
1 Output Phases
4.5V ~ 13.2V Voltage - Supply (Vcc/Vdd)
100kHz ~ 1MHz Frequency - Switching
95% Duty Cycle (Max)
Yes Synchronous Rectifier
Yes Clock Sync
Dead Time Control, Enable, Frequency Control, Phase Control, Ramp Control Features
Surface Mount Mounting Type