The MAX743 is a dual‑output, current‑mode switch‑mode regulator IC that provides regulated +5 V to +15 V (or +12 V) outputs with up to 125 mA per channel. It uses simple two‑terminal inductors and integrates power transistors, offering high efficiency and low noise for compact power‑supply designs.
Key features include on‑board current limiting, thermal shutdown protection, undervoltage lock‑out, programmable soft‑start, and an internal 200 kHz oscillator. Maxim offers a production kit and an evaluation kit (MAX743EVKIT) that include recommended inductors, capacitors, and a prototype board.
| Maximum Output Current per channel | 125 mA |
|---|---|
| Oscillator Frequency | 200 kHz |
| Thermal Shutdown Threshold | +190 °C |
It provides dual outputs of +5 V to +15 V or +12 V, selectable via the pin configuration.