ON Semiconductor ADP3110AKRZ-RL

Description
The ADP3110A is a single-phase, 12 V MOSFET gate driver optimized for driving the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. The high-side and low-side driver can drive a 3000 pF load with a 25 ns propagation delay and a 30 ns transition time. With a wide operating voltage range, high or low side MOSFET gate drive voltage can be optimized for the best efficiency. Internal adaptive nonoverlap circuitry further reduces switching losses by preventing simultaneous conduction of both MOSFETs. The floating top driver design can accommodate VBST voltages as high as 35 V, with transient voltages as high as 40 V. Both gate outputs can be driven low by applying a low logic level to the Output Disable (OD) pin. An Undervoltage Lockout function ensures that both driver outputs are low when the supply voltage is low, and a Thermal Shutdown function provides the IC with overtemperature protection.

Features
All-in-one synchronous buck driver with bootstrapped high-side drive
One PWM signal generates both drives
Anticross conduction protection circuitry
OD for disabling the driver outputs meets CPU VR requirement when used with patented FlexMode™ controller
Pb-free devices

Applications
Multiphase desktop CPU supplies
Single-supply synchronous buck converters