The MAX1709 is a high-power step-up DC-DC converter that delivers up to 20W at a fixed (3.3V or 5V) or adjustable (2.5V to 5.5V) output from a +0.7V to +5V supply.
The MAX1709 step‑up converter offers high efficiency and integration for high‑power applications. It operates from an input voltage as low as 0.7 V and provides a fixed 3.3 V or 5 V output, or an adjustable output from 2.5 V to 5.5 V. Features include an on‑chip 10 A MOSFET, programmable soft‑start, current limit, and synchronizable switching frequency.
Typical applications are battery‑powered systems, routers, servers and RF power amplifiers. The device is supplied in a 28‑pin TSSOP package (up to 4 A output) and a narrow‑SO package (up to 2.4 A output).
| Output Voltage | Fixed 3.3 V or 5 V, adjustable 2.5 V‑5.5 V |
|---|---|
| Input Voltage Range | 0.7 V to 5.5 V |
| Quiescent Power Consumption | < 1 mW |
The device consumes less than 1 mW of quiescent power.