MAX890
1.2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown
Low-Resistance P-Channel Switches with Adjustable, Accurate Current Limit Protects Systems and USB
Part Details
- +2.7V to +5.5V Input Range
- Programmable Current Limit
- Low Quiescent Current
- 10µA (typ) at VIN = 3.3V
- 0.1µA (typ) with Switch Off
- 10µA (typ) at VIN = 3.3V
- Thermal Shutdown
- Active-Low FAULT Indicator Output
- 0.09Ω (typ) On-Resistance
The MAX890L smart, low-voltage, P-channel, MOSFET power switch is intended for high-side load-switching applications. This switch operates with inputs from +2.7V to +5.5V, making it ideal for both +3V and +5V systems. Internal current-limiting circuitry protects the input supply against overload. Thermal-overload protection limits power dissipation and junction temperatures.
The MAX890L's maximum current limit is 1.2A. The current limit through the switch is programmed with a resistor from SET to ground. The quiescent supply current is a low 10µA. When the switch is off, the supply current decreases to 0.1µA.
The MAX890L is available in an 8-pin SO package.
Applications
- Access Bus Slots
- PCMCIA Slots
- Portable Equipment
Documentation
Data Sheet 1
3rd Party Solutions 1
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Current Limit Switches 2 | ||
| MAX891L | PRODUCTION | Current-Limited, High-Side P-Channel Switches with Thermal Shutdown |
| MAX894L | PRODUCTION | Dual, Current-Limited, High-Side P-Channel Switches with Thermal Shutdown |
| USB Power Switches 1 | ||
| MAX869L | PRODUCTION | 2A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown |
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