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5V, 50mA Automotive LDO Regulator with Load Dump and Short-to-Battery Protection
A4481
The A4481 is a robust 5V LDO regulator designed for automotive environments. It offers 50mA output current, load dump and short-to-battery protection, and a power-OK flag for enhanced system reliability.
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5.25 to 40 VIN operating range, 50 V load dump rating
5 V ±1% internal LDO regulator
Foldback short-circuit protection
Short-to-battery protection (to 32 V, independent of VIN) for harness faults
Power OK (POK) flag
High-voltage logic level enable input (ENB) for microprocessor control or connection directly to battery
Pin-to-pin and pin-to-ground tolerant at every pin
Allegro Sensor Bias LDO
The A4481 device is available in an 8-pin SOIC package, (suffix LJ), with exposed pad for enhanced thermal dissipation. It is lead (Pb) free, with 100% matte-tin leadframe plating.