1 Features

? ? ? ? ? Output voltage using PWM signal or analog signa 3.5V to 32V wide operating input range 2.0V to 32V wide operating output range 100% duty Integrated two 13mΩ power MOSFETs. Dynamical programming of output current and l ? Adjustable Switching Frequency using resistor ? Frequency dithering for good EMI performance ? Integrated 2-A MOSFET Gate Drivers ? Comprehensive protection features including Output Short Protection (OSP), Cycle-by-Cycle Peak Current Limit, thermal regulation, thermal shutdown, input UVLO, output OVP etc. ? Dual Output Average Current Limiting with stable CC loop ? QFN5x5-32 Package
2 Applications

? Automotive Start-Stop Systems

? Industrial PC Power Supplies

? USB Power Delivery

3 Description

PL84052 is a PWM controller, designed for high performance synchronous Buck DC/DC applications PL84052 employs Constant ON time control. Th with input voltages 3.5 V to 32 V (36 V maximum). e switching frequency could be set to 150kHz, 300kHz, 600kHz or 1200kHz based on different resistor value between FREQ pin and GND pin. The device also features a programmable soft-start function and offers all kinds of protection features including cycle-by-cycle current limiting, input under voltage lockout (UVLO), output over voltage protection (OVP), thermal shutdown and output short protection etc. PL84052 provides voltage control loop, constant current loop, and thermal regulation loop.