Synchronous, 95% Efficient, Boost Converter With 500-mA Output Current From 1.8-V Input
Integrated 200-mA Reverse Voltage Protected LDO for DC/DC Output Voltage Post Regulation or Second Output Voltage
40-µA (Typical) Total Device Quiescent Current
Input Voltage Range: 1.8-V to 5.5-V
Fixed and Adjustable Output Voltage Options up to 5.5-V
Power Save Mode for Improved Efficiency at Low Output Power
Low Battery Comparator
Power Good Output
Low EMI-Converter (Integrated Antiringing Switch)
Load Disconnect During Shutdown
Overtemperature Protection
Available in a Small 4mm x 4mm QFN-16 or in a TSSOP-16 Package
Description
The TPS6112x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer or a two up to 4 cells Alkaline, NiCd or NiMH batteries. The devices can generate two stable output voltages that are either adjusted by an external resistor divider or fixed internally on the chip. It also provides a simple solution for generating 3.3 V out of a one-cell Li-Ion or Li-Polymer battery at a maximum output current of at least 200 mA with supply voltages down to 1.8 V. The implemented boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. The maximum peak current in the boost switch is limited to a value of 1600 mA.
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
Inventory
Reported Distributor Inventory as of 10:09 AM GMT, 22 Nov 2009
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
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