The TPS61026DRCTG4 is a synchronous Boost Converter with down-mode function. The device provides a power supply solution for products powered by either one-cell, two-cell or three-cell alkaline, NiCd/NiMH or one-cell Li-ion/Li-polymer battery. Output currents can go as high as 200mA while using a single-cell alkaline battery and discharge it down to 0.9V. The device can also be used for generating 5V at 500mA from a 3.3V rail or a Li-ion battery. The boost converter is based on a fixed-frequency, pulse width modulation (PWM) controller using a synchronous rectifier to obtain maximum efficiency. At low load currents the converter enters the power save mode to maintain a 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 TPS6102x device keep the output voltage regulated even when the input voltage exceeds the nominal output voltage.
Output voltage remains regulated when input voltage exceeds nominal output voltage
Power-saving mode for improved efficiency at low output current
