AP63203WU-7

AP63203WU-7 is a synchronous buck converter that fully integrates a 125mohm high-side power MOSFET and a 68mohm low-side power MOSFET to provide high-efficiency step-down DC/DC conversion. It has optimized designs for electromagnetic interference (EMI) reduction. The converter features frequency spread spectrum (FSS) with a switching frequency jitter of ±6%, which reduces EMI by not allowing emitted energy to stay in any one frequency for a significant period of time. It also has a proprietary gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off times, which further erases high-frequency radiated EMI noise caused by MOSFET switching. Applications include 12V and 24V distributed power bus supplies, flat screen TV sets and monitors, power tools and laser printers, white goods and small home appliances, FPGA, DSP, and ASIC supplies, home audio, network systems, set-top boxes, gaming consoles, and consumer electronics.

• Wide input voltage range of 3.8V to 32V
• 2A continuous output current
• Proprietary gate driver design for best EMI reduction
• Frequency spread spectrum (FSS) to reduce EMI, precision enable threshold to adjust UVLO
• Protection circuitry, overvoltage protection cycle-by-cycle peak current limit, thermal shutdown
• Shutdown supply current is 1µA typ at VEN = 0V, TA = +25°C, VIN = 12V
• Minimum on time is 80ns at TA = +25°C, VIN = 12V
• Frequency spread spectrum is ±6% typ at TA = +25°C, VIN = 12V
• PWM/PFM mode, 1100kHz frequency, 3.3V output voltage
• Operating ambient temperature range from -40 to 85°C, TSOT26 package