tps63030.pdf
| FEATURES | APPLICATIONS | |||
| Up to 96% Efficiency " | All Two-Cell and Three-Cell Alkaline | NiCd or " | ||
| 800-mA Output Current at 3.3V in Step Down Mode (VIN = 3.6V to 5.5V) " | NiMH or Single-Cell Li Battery Powered Products | |||
| Up to 500-mA Output Current at 3.3V in Boost " | Portable Audio Players " | |||
| Mode (VIN > 2.4V) | PDAs " | |||
| Automatic Transition Between Step Down and " | Cellular Phones " | |||
| Boost Mode | Personal Medical Products " | |||
| Device Quiescent Current less than 50μA " | White LEDs " | |||
| Input Voltage Range: 1.8V to 5.5V " | ||||
| Fixed and Adjustable Output Voltage Options " | DESCRIPTION | |||
| from 1.2V to 5.5V | The TPS6303x devices provide | a | power | supply |
| Power Save Mode for Improved Efficiency at Low Output Power " Forced Fixed Frequency Operation and Synchronization Possible " | 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 600 mA while using a single-cell Li-Ion or Li-Polymer Battery, and discharge it down to 2.5V | |||
| Load Disconnect During Shutdown " Over-Temperature Protection " Available in Small 2.5mm × 2.5mm | QFN-10 Package " | 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 1000 mA. The output voltage is
programmable using an external resistor divider, or is
fixed internally on the chip. 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 2.5mm × 2.5 mm (DSK).
DatasheetDoc-Texas Instruments TI pdf datasheet download
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