All-in-one synchronous buck driver
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
Analog Devices Flex-Mode™1 controller
Multiphase desktop CPU supplies
Single-supply synchronous buck converters
Dual Bootstrapped, 12 V MOSFET
Driver with Output Disable
The ADP3110A is a dual, high voltage MOSFET driver
optimized for driving two N-channel MOSFETs, the two
switches in a nonisolated synchronous buck power converter.
Each driver is capable of driving a 3000 pF load with a 25 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 ADP3110A includes overlapping drive protection to
prevent shoot-through current in the external MOSFETs.
The OD pin shuts off both the high-side and the low-side
MOSFETs to prevent rapid output capacitor discharge during
The ADP3110A is specified over the commercial temperature
range of 0°C to 85°C and is available in an 8-lead SOIC_N or an
8-lead LFCSP_VD package.
1 Flex-Mode™ is protected by U.S. Patent 6683441; other patents pending.
FUNCTIONAL BLOCK DIAGRAM
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