The MAX1930 is a current-limited switch ideal for dual USB applications. It has low quiescent and standby current, making it suitable for portable applications. The MAX1930 has safety features to protect the USB port. It is offered in an 8-pin SO package and operates over a wide temperature range.
The MAX1930 is a current‑limited P‑channel MOSFET switch designed for dual USB applications. It provides an accurate preset current limit of 1.2 A (minimum) to 2.3 A (maximum), operates from 2.7 V to 5.5 V, and features very low quiescent (16 µA) and standby (1 pA) supply currents to conserve battery power. Safety functions include short‑circuit protection, thermal‑shutdown at 165 °C, and undervoltage lockout.
Typical applications are notebook computers, USB hubs, and docking stations. The device is supplied in an 8‑pin SO package, supports operation from –40 °C to +85 °C, and includes recommended layout guidelines such as short trace lengths and nearby input/output bypass capacitors to ensure fast response and reliable thermal dissipation.
| Current limit | 1.2 A min – 2.3 A max |
|---|---|
| Quiescent supply current | 16 µA |
| Standby supply current | 1 pA |
| Supply voltage range | 2.7 V to 5.5 V |
| Thermal shutdown threshold | 165 °C |
| Package type | 8‑pin SO |
The device limits output current to between 1.2 A (minimum) and 2.3 A (maximum).
Its quiescent supply current is 16 µA.
The part is supplied in an 8‑pin SO (small‑outline) package.