The TPS61045 is a high frequency boost converter with digitally programmable output voltage and true shutdown. It features high efficiency, up to 1 MHz switching frequency, and small package size. It is ideal for LCD bias supply for small to medium LCD displays and OLED display power supply.
The TPS61045 is a high‑frequency boost converter that accepts an input voltage from 1.8 V to 6.0 V and provides a digitally programmable output voltage up to 28 V. It features up to 85 % efficiency, a switching frequency up to 1 MHz, and true shutdown where the output is disconnected from the input.
The device is supplied in a small 3 mm × 3 mm QFN package and includes a 6‑bit DAC for output‑voltage programming via the CTRL pin. It incorporates peak‑current control, low quiescent current (40 µA typ), and a shutdown current of 0.1 µA typ, making it suitable for LCD bias, OLED power, and other handheld applications.
| Input voltage range | 1.8 V to 6.0 V |
|---|---|
| Efficiency | up to 85 % |
| Switching frequency | up to 1 MHz |
| Maximum output voltage | 28 V |
The TPS61045 operates with an input voltage range of 1.8 V to 6.0 V.
The output voltage is digitally adjustable via the CTRL pin, which programs the internal DAC.
The device can switch at frequencies up to 1 MHz.