SI9913
FEATURES
D D D D D D D D D 4.5- to 5.5-V Operation Undervoltage Lockout 250-k Hz to 1-MHz Switching Frequency Synchronous Switch Enable One Input PWM Signal Generates Both Drive Bootstrapped High-Side Drive Operates from 4.5- to 30-V Supply TTL/CMOS patible Input Levels 1-A Peak Drive Current
APPLICATIONS
D D D D D Multiphase Desktop CPU Supplies Single-Supply Synchronous Buck Converters Mobile puting CPU Core Power Converters Standard-to-Synchronous Converter Adaptations High Frequency Switching Converters
DESCRIPTION
The Si9913 is a dual MOSFET high-speed driver with break-before-make. It is designed to operate in high frequency dc-dc switchmode power supplies. The high-side driver is bootstrapped to handle the high voltage slew rate associated with “floating” high-side gate drivers. Each driver is capable of switching a 3000-p F load with 60-ns propogation delay and 25-ns transition time. The Si9913 es with internal break-before-make feature to prevent shoot-through current in the...
