ADP3410

a FEATURES All-In-One Synchronous Buck Driver One PWM Signal Generates Both Drives Anticross-Conduction Protection Circuitry Programmable Transition Delay Synchronous Override Control Undervoltage Lockout Programmable Overvoltage Shutdown V CC Good Signal Drives Auxiliary Circuits Shutdown Quiescent Current < 10 ␮ A APPLICATIONS Mobile Computing CPU Core Power Converters Multiphase Desktop CPU Supplies Single-Supply Synchronous Buck Converters Standard-to-Synchronous Converter Adaptations VCC VCCGD GND Dual MOSFET Driver with Bootstrapping ADP3410 FUNCTIONAL BLOCK DIAGRAM ADP3410 4.4V BST SD IN DLY VCC CONTROL AND OVERLAP PROTECTION CIRCUIT DRVH SW VCC DRVL OVPSET 1.2V DRVLSD PGND SRMON GENERAL DESCRIPTION 5V VBATT The ADP3410 is a dual MOSFET driver optimized for driving two N-channel FETs that are the two switches in the nonisolated synchronous buck power converter topology. Each of the drivers is capable of driving a 3000␣ pF load with a 20␣ ns propagation delay and a 30␣ ns transition time. One of the drivers can be bootstrapped, and is designed to handle the high-voltage slew rate associated with “floating” high-side gate drivers. The ADP3410 has several protection features: overlapping drive prevention (ODP), undervoltage lockout (UVLO) with performance specified at very low VCC levels, and overvoltage protection (OVP) that can be used to monitor either the input or output. Additional features include: programmable transition delay, a synchronous drive override...