• 1.8V to 5.5V Input Voltage Range
• 1.2V to 5.5V Output Voltage Range (Fixed and
Adjustable)
• Up to 96% Efficiency
• Less than 50μA Quiescent Current
• Output Current at 3.3V:
Up to 1200mA in Buck Mode (VIN = 3.6V to 5.5V)
Up to 800mA in Boost Mode (VIN > 2.4V)
• Real Buck, Boost and Buck-Boost Modes
• Automatic Mode Transition
• Auto PFM and Forced PWM Selectable
• External Clock Synchronization
• True Shutdown Function with Load Disconnect
• OTP Protection
• Available in a Green TDFN-3×3-10L Package
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• Input voltage range: 1.8 V to 5.5 V
• Fixed and adjustable output voltage options from
1.2 V to 5.5 V
• Up to 96% efficiency
• 800-mA Output current at 3.3 V in step-down
mode (VIN = 3.6 V to 5.5 V)
• Up to 500-mA output current at 3.3 V in boost
mode (VIN > 2.4 V)
• Automatic transition between step-down and
boost mode
• Device quiescent current less than 50 μA
• Power-save mode for improved
efficiency at lowoutput power
• Forced fixed frequency operation and
synchronization possible
• Load disconnect during shutdown
• Overtemperature protection
• Available in a small 2.5-mm × 2.5-mm 10-pin
VSON package (QFN)
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