bq25046

bq25046 www.ti.com SLUSA83 – SEPTEMBER 2010 1.1A, Single-Input 5-V Power Supply IC for Wireless Power Applications Check for Samples: bq25046 FEATURES 1 30V Input Rating, with 15V Over-Voltage Protection (OVP) Threshold Integrated Charge Current Sense for Wireless Power Transfer Efficiency Monitoring 3.3V, 15mA integrated Low Dropout Linear Regulator (VDD3.3) Supplies Power to MSP430BQ1010 Directly 2% Output Voltage Regulation Pin Selectable 100mA and 400mA Current Limit Enables Robust Communication in Wireless Power Systems at any Output Current Level Soft-Start Feature to Reduce Inrush Current Status Indication – Power Good (PG) and Output Enabled (CHG) Available in Small 2mm × 3mm DFN-10 Package APPLICATIONS Wireless Power Applications Smart Phones PDAs MP3 Players Low-Power Handheld Devices DESCRIPTION The bq25046 is a highly integrated linear power supply IC targeted at both wired and wireless power applications. With an accurate 5-V regulated output and integrated 3.3-V LDO, the bq25046 is an ideal solution for wireless power supply solutions up to 5 W. The bq25046 integrates several functions which enable a wireless charging solution within a small area and low component count. These include a 3.3-V LDO which drives an MSP430BQ1010 wireless controller, high-accuracy current sense for calculating receiver-side power usage, 100mA/400mA current limits enable robust communication at all load current levels, and integrated pass FET acts as lo...