TPS63000IDRCRQ1 Description

The TPS63000 devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 1200 mA while using a single-cell Li-Ion or Li-Polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters Power Save mode to maintain high efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 1800 mA. The output voltage is programmable using an external resistor divider. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 10-pin QFN PowerPAD? package measuring 3 mm × 3 mm (DRC).
TPS63000IDRCRQ1 Features

Qualified for Automotive Applications

Up to 96% Efficiency
1200-mA Output Current at 3.3 V in Step Down Mode (VIN = 3.6 V to 5.5 V)
Automatic Transition between Step Down and Boost Mode
Device Quiescent Current Less Than 50 μA
Input Voltage Range: 1.8 V to 5.5 V
Adjustable Output Voltage From 1.2 V to 5.5 V
Power Save Mode for Improved Efficiency at Low Output Power
Forced Fixed Frequency Operation and Synchronization Possible
Load Disconnect During Shutdown
Over-Temperature Protection
Available in Small 3 mm × 3 mm, QFN-10 Package
TPS63000IDRCRQ1 Applications

All Two-Cell and Three-Cell Alkaline, NiCd or NiMH or Single-Cell Li Battery Powered Products
Portable Audio Players
PDAs
Cellular Phones
Personal Medical Products
White LEDs