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 load disconnect switch and 5-V regulator to protect downstream circuitry. In addition, the bq25046 has an absolute maximum input voltage of 30 V and an OVP threshold of 15 V, which enables safe and robust operation in inductive power transfer systems that use either resistive or capacitive load modulation.

• 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

• Number of series cells
• 1
• Charge current (Max) (A)
• 1.1
• Operating Vin (Max) (V)
• 9
• Cell chemistry
• Li-Ion/Li-Polymer
• Battery charge voltage (Min) (V)
• 3.3
• Battery charge voltage (Max) (V)
• 3.3
• Absolute Vin (safety rating) (Max) ((V))
• 30
• Control interface
• Standalone (RC-Settable)
• Features
• IC thermal regulation, Integrated LDO
• Operating Vin (Min) (V)
• 3.3
• Rating
• Catalog

BQ25046的完整型号有：BQ25046DQCR、BQ25046DQCT，以下是这些产品的关键参数及官网采购报价：

BQ25046DQCR，工作温度：-40 to 85，封装：WSON (DQC)-10，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BQ25046DQCR的批量USD价格：5.359（1000+）

BQ25046DQCT，工作温度：-40 to 85，封装：WSON (DQC)-10，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网BQ25046DQCT的批量USD价格：6.291（1000+）