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January 23, 2026Introducing RS31512: Stackable 20A eFuse with PMBus Digital Telemetry
Stackable 20A eFuse with PMBus Digital Telemetry
The RS31512 is an active circuit protection device with integrated MOSFET used to limit current and voltage to safe levels during fault conditions.
The current limit level during startup and steady state can be set separately. Also, the device has integrated current sense to provide current monitor signal.
With PMBus interface, it allows user to configure and monitor the device.
In addition, the device provides fault indication to the system for monitoring and control.
RS31512 can be connected in parallel for higher current applications.
The device is available in LGA-24, 5×6 mm package.
Key Features
- Wide input voltage range: 9V to 80V
- Integrated 4.3mΩ Pass MOSFET
- Support 20A DC current and 24A peak current
- Standalone mode or primary mode in parallel application
- PMBus interface for configuration and telemetry
- Accurate current monitor
- Adjustable output soft start time
- Adjustable current limit during soft start and steady state
- Adjustable short circuit current limit
- Fast trip short-circuit protection
- Fault indication and power good indication
- Latch-off or auto-retry option for protections
- Input to output short circuit detection
- RoHS compliant and Green
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