AP65550
5A, 18V, 650kHz ADAPTIVE COT STEP-DOWN CONVERTER
Description
The AP65550 is an adaptive constant on-time mode synchronous buck converter providing high efficiency, excellent transient response and high DC output accuracy for low-
voltage regulation in digital TV and monitor.
The constant-on-time control scheme handles wide input/output
voltage ratios and provides low external component count.
The internal proprietary circuit enables the device to adopt both low equivalent series resistance (ESR) output
capacitors, such as SPCAP or POSCAP and ultra-low ESR ceramic
capacitors.
The adaptive on-time control supports seamless transition between continuous conduction mode (CCM) at higher l...