The SPX1587 is a low power positive-voltage regulator designed to satisfy moderate power requirements with a cost effective, small footprint solution. This device is an excellent choice for use in battery-powered applications and portable computers.
The SPX1587 is a low‑power positive‑voltage regulator offering a guaranteed 3 A output current, low quiescent current, and a low dropout voltage of 1.1 V at full load. It is available in adjustable or fixed versions (1.5 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V) and packaged in TO‑252, TO‑220, or TO‑263.
The document details electrical characteristics, thermal limits, recommended output capacitors, pinout diagrams, mechanical dimensions, and ordering information. Application notes cover desktop PCs, servers, VGA/sound cards, cordless phones, battery chargers, and portable instrumentation.
| Maximum Output Current | 3 A |
|---|---|
| Low Dropout Voltage (3 A) | 1.1 V |
| Line Regulation | 0.1 % |
| Load Regulation | 0.1 % |
| Available Packages | TO‑252, TO‑220, TO‑263 |
Thermal protection is activated at temperatures above 179 °C and deactivates below 165 °C.
The regulator is offered in three‑pin surface‑mount packages: TO‑252, TO‑220, and TO‑263.
The dropout voltage is 1.1 V when delivering 3 A.