TPS61252

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS61252 SLVSAG3A – SEPTEMBER 2010 – REVISED DECEMBER 2014 TPS61252 Tiny 1.5-A Boost Converter With Adjustable Input Current Limit 1 Features 1 Resistor Programmable Input Current Limit – ±20% Current Accuracy at 500 mA over Full Temperature Range – Programmable from 100 mA up to 1500 mA Up to 92% Efficiency VIN Range from 2.3 V to 6.0 V Power Good Indicates Appropriate Output Voltage Level Adjustable Output Voltage up to 6.5 V 100% Duty-Cycle Mode When VIN > VOUT Load Disconnect and Reverse Current Protection Short Circuit Protection Typical Operating Frequency 3.25 MHz Available in a 2-mm × 2-mm WSON-8 Package 2 Applications USB Host Supplies from a Single Li-Ion Battery Current Limited Applications Li-Ion Applications Audio Applications RF-PA Buffer 3 Description The TPS61252 device provides a power supply solution for products powered by either a three-cell alkaline, NiCd or NiMH battery, or an one-cell Li-Ion or Li-polymer battery. The wide input voltage range is ideal to power portable applications like mobile phones or computer peripherals. The device has a resistor programmable (RILIM) input current limit and is suitable for a wide variety of applications. During light loads, the device automatically enters skip mode (PFM), which allows the converter to maintain the required output voltage, while only drawing 30 μA quiescent current from the battery...