ACP2829.pdf
No.13178
? VIN : 4.2V to 18V
? Output Voltage (VOUT) : 0.8V to 7V
? 2A Continuous Output Current
? 0.8V ± 1% Reference Voltage
? 150μA Low Quiescent Current
? 750KHz Switching Frequency (VIN = 12V, VOUT= 5V)
? Typically 85% Efficiency at 5mA Light Load
? Proprietary Gate Driver Design for Best EMI
Reduction
? Under Voltage Lockout (UVLO)
? Cycle-by-Cycle Valley Current Limit
? Thermal Shutdown
The ACP2829 is a 2A, synchronous buck converter with a wide input voltage range of 4.2V to 18V. The device fully integrates a 90mΩ high-side power MOSFET and a 65mΩ low-side power MOSFET to provide high-efficiency step down DC-DC conversion. The ACP2829 device is easily used by minimizing the external component count due to its adoption of Constant On-Time (COT) control to achieve fast transient response, easy loop stabilization, and low output voltage ripple.
The ACP2829 design is optimized for Electromagnetic Interference (EMI) reduction. The device has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which reduces high frequency radiated EMI noise caused by MOSFET switching. The device is available in SOT563 and TSOT26 packages.
