ADP3413

a FEATURES All-In-One Synchronous Buck Driver Bootstrapped High-Side Drive One PWM Signal Generates Both Drives Anticross-Conduction Protection Circuitry Pulse-by-Pulse Disable Control APPLICATIONS Multiphase Desktop CPU Supplies Mobile Computing CPU Core Power Converters Single-Supply Synchronous Buck Converters Standard-to-Synchronous Converter Adaptations Dual Bootstrapped MOSFET Driver with Output Disable ADP3413 FUNCTIONAL BLOCK DIAGRAM VCC BST IN OVERLAP PROTECTION CIRCUIT OD 3 DRVH SW DRVL ADP3413 GENERAL DESCRIPTION PGND The ADP3413 is a dual MOSFET driver optimized for driving two N-channel MOSFETs which are the two switches in a nonisolated synchronous buck power converter. 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 ADP3413 includes overlapping drive protection (ODP) to prevent shoot-through current in the external MOSFETs. The OD pin provides high speed control to quickly turn off both gate drives. The ADP3413 is specified over the commercial temperature range of 0°C to 70°C and is available in an 8-lead SOIC package. 7V D1 VCC 12V ADP3413 BST CBST IN DRVH Q1 SW DELAY +1V DRVL 1V PGND OD 3 Q2 REV. 0 Figure 1. General Application Circuit Information furnished by Analog Devices is believed to be accurate and reliable. However, no re...