TPS61253A

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS61253A SLVSDE4A – MARCH 2017 – REVISED DECEMBER 2017 TPS61253A 3.8-MHz, 5-V / 4-A Boost Converter in 1.2-mm x 1.3-mm WCSP 1 Features 1 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 ≥ 1500mA 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 2 Applications Smart Phones Portable Speaker USB Charging Ports NFC PA Supply Li Battery to 5-V Power Conversion 3 Description The TPS6125xA device provides a power supply solution for battery-powered portable applications. With the input voltage ranging from 2.3 V to 5.5 V, the device supports the applications powered by the Li-Ion batteries with the extended voltage range. Different fixed output voltage versions are available of 4.5 V, 4.7 V, 5 V and 5.2 V. The TPS6125xA supports up to 1500-mA load current from a battery discharged as low as 3 V. The TPS6125xA operates at typical 3.8-MHz switching frequency. The TPS...