SGM66057.pdf• 2.7V to 4.85V Operating Input Voltage Range
• 5.25V Fixed Output Voltage
• Up to 96.8% Efficiency
• Device Quiescent Current: 24µA (TYP)
• Shutdown Current: 1µA (MAX)
• Valley Switch Current Limit: 3.4A (TYP)
• Improved Light Load Efficiency with Power-Save
Mode (PSM)
• Low Reverse Leakage Current when VOUT > VIN
• Load Disconnect during Shutdown
• Over-Temperature Protection
• Available in a Green WLCSP-1.26×1.21-9B Package
• Wide input voltage range from 2.3 V to 5.5 V
(TPS61253A)
• Wide input voltage range from 2.5 V to 5.5 V
(Startup>2.6V, TPS61253E)
• Fixed output voltage: 4.5 / 4.7 / 5.0 / 5.2 V / 5.25 V
• Two FETs integrated: 35-mΩ LS-FET, 60-mΩ HSFET
• IOUT ≥ 1500-mA continuously at VOUT = 5 V and
VIN ≥ 3 V (TPS61253A)
• IOUT ≥ 1500-mA continuously at VOUT = 5.25 V
and VIN ≥ 3 V (TPS61253E)
• 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
