SPX1585 is a 5A low dropout voltage regulator with adjustable and fixed output, fast response
The SPX1585 is a 5 A low‑dropout voltage regulator offered in adjustable and fixed‑output versions. It operates with a typical dropout of 1.1 V at 5 A and provides high efficiency for low‑voltage applications such as micro‑processors and post‑regulation of switching supplies.
The device includes protection against over‑current, reversed input polarity, reversed load insertion, over‑temperature, and both positive and negative transient voltages. It is supplied in TO‑220 and TO‑263 packages and is compatible with standard 3‑terminal regulator footprints.
| Output Current | 5 A |
|---|---|
| Typical Dropout Voltage (5 A) | 1.1 V |
| Adjustable Output Range | Down to 1.2 V |
| Fixed Output Voltages | 1.5 V, 2.5 V, 3.3 V |
| Input Voltage Range | 4.0 V – 10 V |
It offers full protection against over‑current faults, reversed input polarity, reversed load insertion, over‑temperature operation, and positive and negative transient voltage.
The maximum dropout voltage is 1.2 V at 5 A.
The regulator is offered in 3‑lead TO‑220 and TO‑263 packages.
A 22 µF aluminum electrolytic or 10 µF solid tantalum capacitor is recommended for the adjustable version; 22 µF tantalum or 100 µF electrolytic for the fixed version.