The UCC27221 and UCC27222 are high-speed synchronous buck drivers for today’s high-efficiency, lower-output voltage designs.
Using Predictive Gate Drivet (PGD) control technology, these drivers reduce diode conduction and reverse recovery losses in the synchronous rectifier MOSFET(s).
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UCC27221 Not Recommended For New Designs
UCC27221 UCC27222
SLUS486B − AUGUST 2001 − REVISED JULY 2003
HIGHĆEFFICIENCY PREDICTIVE SYNCHRONOUS BUCK DRIVER
FEATURES
APPLICATIONS
D Maximizes Efficiency by Minimizing
Body-Diode Conduction and Reverse Recovery Losses
D Transparent Synchronous Buck Gate Drive
Operation From the Single Ended PWM Input Signal
D 12-V or 5-V Input Operation D 3.3-V Input Operation With Availability of
12-V Bus Bias
D On-Board 6.5-V Gate Drive Regulator D ±3.
UCC27221 Datasheet
