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ACT8310 / ACT8311
1.5A, PWM Step-Down DC/DCs in TDFN
FEATURES
• Multiple Patents Pending • Up to 95% High Efficiency • Up to 1.5A Guaranteed Output Current (ACT8311) • 1.35MHz Constant Frequency Operation • Internal Synchronous Rectifier Eliminates
Schottky Diode • ACT8310: Up to 1.2A • ACT8311: Up to 1.5A • 100% Duty Cycle Low-Dropout Operation • 0.1µA Shutdown Current • Small TDFN33-8 Package
RoHS-Compliant • Enable/Disable Control • Minimal External Components
APPLICATIONS
• Wireless Handhelds • Portable Devices • GPS/PND equipment
SYSTEM BLOCK DIAGRAM
GENERAL DESCRIPTION
The patent-pending ACT8310/ACT8311 are currentmode, fixed-frequency PWM, synchronous step-down DC/DC converters that are capable of delivering 1.5A with efficiency of up to 95%.