MAX1954A is a switch power supply chip launched by Maxim company, which adopts PWM control technology. The input voltage range is 3.0V to 13.2V, the output voltage range is 0.8V to Vin, and it supports a maximum current output of 25A. The efficiency is up to 95%.
The MAX1954A is a PWM buck‑converter IC designed for high‑efficiency step‑down conversion with a fixed 300 kHz switching frequency. It supports input voltages from 3 V to 5.5 V and can deliver up to 25 A of output current while maintaining efficiencies up to 93 %.
The datasheet includes absolute maximum ratings, electrical characteristics, pin‑out tables, soft‑start settings, FET driver specifications, thermal protection, shutdown control, and package dimensions. It also provides performance graphs for efficiency versus load current and output voltage. This manual is written in Chinese.
| HSD Voltage Range | 3.0 V – 13.2 V |
|---|---|
| Maximum Duty Cycle | ≈ 93 % |
| Maximum Output Current | 25 A |
The device can provide up to 25 A of continuous output current.