New buck-boost power conversion IC TPS63001/XC9301/XC9302

New Buck-Boost Power Converter ICTPS63001/XC9301/XC9302

1. TPS63001 (TI)

TPS63001 is a buck-boost converter IC for digital home appliances and portable devices. The figure below is its application circuit, with an input voltage range of 1.8~5.5V and an output of 3.3V, 1.2A. Since the high-power MOSFET is built inside the IC, only a small number of external components are needed to form an ultra-small power converter.

The outstanding feature of TPS63001 is that it will not enter the dormant state when Vin≈Vout and can still control the output voltage, so the fluctuation of the output voltage can be effectively suppressed.

2. XC9301/XC9302 series (Torex Semiconductor)

This series of integrated circuits are mainly used in portable devices. The figure below is its application circuit. The input voltage range is 2~10V, the output voltage is set by the manufacturer, 2.4~6.0V, and the output current is above 0.25A. The internal high-power MOSFET driver is used for both step-down and step-up. In order to meet the needs of step-up and step-down, its internal circuit works below the minimum output voltage, and a voltage divider circuit is provided for setting the output voltage.