SGM66055A.pdf• 93% Efficient Synchronous Boost Converter
• Device Quiescent Current: 23µA (TYP)
• Operating Input Voltage Range: 2.5V to 4.5V
• Fixed Output Voltages: 5.0V and 5.4V
• Output Voltage Clamping: 5.7V
• Power-Save Mode for Improved
Efficiency at Low Output Power
• Pass-through Mode by Pulling EN Low
• Low Reverse Leakage Current when VOUT > VIN
• Over-Temperature Protection
• Available in a Green WLCSP-1.21×1.21-9B Package
• -40℃ to +85℃ Operating Temperature Range
• Wide input voltage range from 2.3 V to 5.5 V
• Fixed output voltage: 4.5 / 4.7 / 5.0 / 5.2 V
• Two FETs integrated: 35-mΩ LS-FET, 60-mΩ HS-FET
• IOUT ≥ 1500-mA continuously at VOUT = 5 V and VIN ≥ 3 V
• 42-µA quiescent current from input
• 4-A switching valley current limit
• 3.8-MHz switching frequency
• Selectable auto PFM, forced PWM, and ultrasonic mode
• Support pass-through mode
• ±2% output voltage accuracy
• 600-µs soft-start time
• Hiccup-mode short protection
• Load disconnection during shutdown
• Thermal shutdown
• Total solution size < 25 mm2
• Create a custom design using the
TPS61253A with the WEBENCH® Power Designer
