MAX608 is a low voltage step-up controller. The input voltage range is 1.8V to 16.5V. The output voltage is 5V, which can be adjusted from 3V to 16.5V with an external resistor divider. Logic controlled shutdown mode reduces supply current to 2µA typically.
The MAX608 low‑voltage step‑up controller operates from a 1.8 V to 16.5 V input voltage range and provides a factory‑set 5 V output that can be adjusted to 3 V‑16.5 V with an external resistor divider. It uses a pulse‑frequency‑modulation (PFM) scheme for high efficiency at heavy loads while consuming only 85 µA typical with no load.
The device is available in 8‑pin DIP and SO packages and is intended for battery‑powered applications, high‑efficiency DC‑DC converters, and portable communicators. Detailed specifications, pin descriptions, and design guidelines are provided for engineers designing with the MAX608.
| Input Voltage Range | 1.8 V to 16.5 V |
|---|---|
| Output Voltage (preset) | 5 V |
| Adjustable Output Voltage | 3 V to 16.5 V |
| No‑Load Supply Current | 85 µA (typical) |
| Shutdown Current | 2 µA (typical) |
| Maximum Switching Frequency | 300 kHz |
| Maximum Output Power | 10 W |
The MAX608 operates from 1.8 V to 16.5 V input voltage.
In shutdown mode the supply current drops to about 2 µA typical.
The MAX608 can switch at frequencies up to 300 kHz.
Yes, the output can be adjusted from 3 V to 16.5 V using an external resistor divider.