The TPS65123 is a single-inductor, quad output, low-profile a-Si and LTPS TFT LCD power supply. It provides 3.0 V to 5.6 V/25 mA main output VMAIN, up to 20 V/2 mA positive output VGH and down to -18 V/2 mA negative output VGL. The device features a 16-pin QFN package (3 × 3 × 0.9 mm), a 2.5 V to 5.5 V input voltage range, ±0.8% typical accuracy, up to 83% efficiency and 5 mVpp low ripple.
The TPS65120/21/23/24 devices are single‑inductor, quadruple‑output converters designed for a‑Si and LTPS TFT‑LCD power supplies. They generate independently regulated positive, negative and auxiliary outputs using a time‑multiplexed inductor architecture, delivering low‑ripple, high‑efficiency performance.
Key features include programmable output voltages (3.0‑5.6 V main, up to 20 V positive, down to –18 V negative), 83 % typical efficiency, a 16‑pin QFN‑16 package (3 mm × 3 mm × 0.9 mm), and built‑in protection such as short‑circuit and over‑temperature limits. The datasheet also provides ordering information, absolute maximum ratings, electrical characteristics, pin assignments, functional block diagrams, and layout guidelines.