MAX1607 is a precise preset current-limited switch for USB applications. The switch has low quiescent supply current and standby current to conserve battery power in portable applications.
The MAX1607 is a P‑channel MOSFET power switch designed for USB applications. It provides an accurate preset current limit of 0.7 A to 1.0 A, low quiescent supply current (14 µA) and standby current (1 µA) to conserve battery power. The device operates from +2.7 V to +5.5 V and includes safety features such as thermal shutdown, undervoltage lockout and a 10 ms over‑current blanking timer.
The datasheet details absolute maximum ratings, electrical characteristics, typical operating curves, pin configurations, and recommended application circuitry. Package information for the 8‑pin SO and 10‑pin TDFN variants is also provided.
| Current limit range | 0.7 A min – 1.0 A max |
|---|---|
| Quiescent supply current | 14 µA |
| Standby supply current | 1 µA |
| Supply voltage range | +2.7 V to +5.5 V |
| Over‑current blanking timeout | 10 ms |
| Maximum switch current | 1.2 A (internally limited) |
| On‑state resistance (RON) | 125 mΩ max |
The device limits output current to between 0.7 A minimum and 1.0 A maximum.
It operates from +2.7 V up to +5.5 V, suitable for both 3 V and 5 V USB systems.
The over‑current blanking timeout is 10 ms.
The quiescent supply current is 14 µA, with a standby current of 1 µA.