Convertor chip is flexible about battery inputs

Power chip suits 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.

TPS6300x 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 1200mA while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5V or lower.

The buck-boost convertor is based on a fixed-frequency pulsewidth-modulation (PWM) controller using synchronous rectification to obtain maximum efficiency.

At low load currents, the convertor enters power save mode to maintain high efficiency over a wide load current range.

The Power Save mode can be disabled, forcing the convertor to operate at a fixed switching frequency.

The maximum average current in the switches is limited to a typical value of 1800mA.

The output voltage is programmable using an external resistor divider, or is fixed internally on the chip.

The convertor can be disabled to minimise battery drain.

During shutdown, the load is disconnected from the battery.

The device is packaged in a 10-pin QFN PowerPad package measuring 3 x 3mm (DRC).

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