The AMS1587 series of adjustable and fixed voltage regulators are designed to provide 3A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the reference voltage to 1%. Current limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry. The AMS1587 devices are pin compatible with older three-terminal regulators and are offered in 3 lead TO-220 package, 3 and 2 lead TO-263 (Plastic DD) and TO-252 (D PAK) package.
The AMS1587 series provides a 3 A output current low‑dropout regulator available in adjustable and fixed voltage versions (1.5 V to 5 V). It operates with a dropout as low as 1 V and offers tight line regulation of 0.015 % and load regulation around 0.1 %.
The device is supplied in TO‑220, TO‑263 and TO‑252 packages, supports input voltages up to 15 V, and includes protection features such as short‑circuit protection and thermal shutdown. Typical applications include microprocessor supplies, battery chargers, notebook power supplies, and portable instrumentation.
| Output Current | 3 A |
|---|---|
| Line Regulation | 0.015 % |
| Input Voltage (max) | 15 V |
| Package Options | TO‑220, TO‑263, TO‑252 |
The regulator can deliver up to 3 A of output current.
The device is available in TO‑220, TO‑263 and TO‑252 packages.
The line regulation is specified as 0.015 %.