Diodes – 3A/4A Adaptive COT Synchronous DC-DC Buck Converters
The AP65355/AP65455 are adaptive constant on-time (aCOT) mode synchronous buck converters providing high efficiency, excellent transient response and high DC-output accuracy for voltage regulation in digital TVs and monitors.
The aCOT control scheme handles wide input/output voltage ratios and provides a low external component count. The AP65355/AP65455 supports a seamless transition between continuous conduction mode (CCM) at higher load conditions and discontinuous conduction mode (DCM) at lighter -load conditions for high efficiency.
The AP65355/AP65455 operate at a fixed 650KHz to achieve good output stability.
These devices also feature programmable soft-start, UVLO, OTP, high-voltage tolerance EN Pin and OCP to protect the circuit.
The AP65355/AP65455 are available in DFN3030-10.
The Diodes’ Advantage
Synchronous DC-DC Buck Converter with Continued Load Current of 3A/4A
Increases efficiency in light -load condition
Standard industry pin-out
Protection
Overcurrent protection
Thermal shutdown
UVLO & high voltage tolerance EN pin
Improves robustness of circuit and prevents premature failure
Adaptive COT Mode
Fast transient response
No need for external compensation
Applications
- Game Consoles
- TVs and Monitors
- Set-Top Boxes
- Network Systems
- Distributed Power Systems
- Home Audio
- Consumer Electronics
- Green Electronics
