UCC27223PWPG4

高效预测同步降压驱动器具有使能 HIGH-EFFICIENCY PREDICTIVE SYNCHRONOUS BUCK DRIVER WITH ENABLE

DESCRIPON

The UCC27223 is a high-speed synchronous buck drivers for today’s high-efficiency, lower-output voltage designs. Using Predictive Gate Drive™ PGD control technology, these drivers reduce diode conduction and reverse recovery losses in the synchronous rectifier MOSFETs.

The UCC27223 includes an enable pin that controls the operation of both outputs. A logic latch is also included to keep both outputs low until the first PWM input pulse comes in. The RDSon of the SR pull-down sourcing device is also minimized for higher frequency operations.

FEATURES

• Maximizes Efficiency by Minimizing Body-Diode Conduction and Reverse Recovery Losses

• Transparent Synchronous Buck Gate Drive Operation From the Single Ended PWM Input Signal

• 12-V or 5-V Input Operation

• 3.3-V Input Operation With Availability of 12-V Bus Bias

• High-Side and Low-Side ±3-A Dual Drivers

• On-Board 6.5-V Gate Drive Regulator

• ±3-A TrueDrive Gate Drives for High Current Delivery at MOSFET Miller Thresholds

• Automatically Adjusts for Changing Operating Conditions

• Thermally Enhanced 14-Pin PowerPAD™ HTSSOP Package Minimizes Board Area and Junction Temperature Rise

APPLICATIONS

• Multiphase Converters in Combination With the TPS40090

• Non-Isolated 3.3-V, 5-V and 12-V Input dc-to-dc Converters for Processor Power, General Computer, Telecom and Datacom Applications