L487 LDO Voltage Regulator with Reset 5V Pentawatt

Description

L487 LDO Voltage Regulator with Reset 5V Pentawatt The L487 LDO Voltage Regulator with Reset 5V Pentawatt is a monolithic integrated circuit in a Pentawatt package, designed to provide a stable 5 V output with ±4 % accuracy and deliver up to 500 mA of continuous current. It features very low dropout (0.6–0.8 V at full load) for operation down to battery cranking levels (as low as 6 V input), and includes a power‑on/power‑off reset pulse to reliably initialize microprocessor systems. The device incorporates overvoltage, reverse voltage, clamp‑diode, short‑circuit, and thermal‑shutdown protections for enhanced robustness in automotive and industrial environments Features Precise 5 V ±4 % regulated output up to 500 mA continuous. Very low dropout voltage: 0.6 V typical, 0.8 V maximum at 500 mA. Integrated power‑on/power‑off reset pulse with programmable delay (≈30 ms). Overvoltage and reverse‑voltage protection up to ±80 V transient. Short‑circuit and thermal‑shutdown protection for fault resilience. Built‑in clamp diodes on each output channel for inductive‑load dumping. Operates from 6 V to 26 V input range. Wide junction temperature range: –40 °C to +150 °C. Specifications ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Rating Unit Forward input voltage Vi 35 V Reverse input voltage Vi –18 V Positive transient peak voltage (t = 300 ms) — 80 V Negative transient peak voltage (t = 100 ms) — –80 V Operating junction temperature Top –40 to 150 ºC Storage temperature Tstg –55 to 150 ºC PINOUT Dimensions Applications Microprocessor and logic‑device power supply with reliable reset sequencing. Automotive electronics requiring operation during engine cranking. Industrial control systems exposed to harsh transients. Battery‑powered equipment and automotive telematics modules. General-purpose 5 V rail in embedded and instrumentation designs. Datasheet L487 Voltage Regulator.

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