TPS61045

采用 QFN-8 封装的 28V 85% 效率的升压转换器，用于 LCD 应用领域

The device is a high-frequency boost converter with digitally-programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power-up and power-down sequencing of the display. The output voltage can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1 MHz, the TPS61045 device allows the use of small external components, and together, with the small 8-pin VSON package, a minimum system solution size is achieved.

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Input Voltage Range from 1.8 to 6 V

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Output Voltage of up to 28 V Possible

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Up to 85% Efficiency

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Digitally Adjustable Output Voltage Control

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Disconnects Output From Input During Shutdown

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Switching Frequency up to 1 MHz

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No Load Quiescent Current 40 µA Typical

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Thermal Shutdown Mode

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Shutdown Current 0.1 µA Typical

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Available in Small 3-mm × 3-mm VSON Package