The SPX1582 is a 3A low dropout regulator with an extremely low dropout voltage. The adjustable version requires only two external resistors to set the output voltage. The fixed version has a preset output of 3.3V, 2.8V or 2.5V and does not require any external resistors. The SPX1582 features a low dropout of 400mV(Typ.) and offers fast transient response. This device is suitable for Pentium applications requiring 2.8V, 2.5V from 3.3V ATX power supplies, where a low current input voltage 1V greater than the output voltage is needed. With an external sense pin the load regulation is less than 1mV. This device is an excellent choice for the use of powering low voltage microprocessors that require a lower dropout, fast transient response to regulate from 3.3V and 5V supplies. The SPX1582 is also an excellent choice as a post regulator for switching supplies applications. The SPX1582 offers protection against over-current faults, reversed input polarity, over temperature operation and positive and negative transient voltage. The SPX1582 is offered in a 5 pin TO-220 and TO-263 compatible with industry standard 5-terminal regulators.
The Sipex SPX1582 is a 3A Ultra Low Dropout Voltage Regulator designed for applications requiring a lower dropout than traditional NPN regulators. It features a low dropout voltage of 500mV at 3A full load current and offers both adjustable and fixed output voltage versions. The device is suitable for powering low voltage microprocessors and serves as an excellent post-regulator for switching supplies.
| Output Current | 3A |
|---|---|
| Dropout Voltage | 500mV |
| Output Voltage (Fixed) | 2.5V, 2.8V, 3.3V |
| Output Voltage (Adjustable) | 1.25V to 6V |
| Reference Voltage | 1.25V |
| Package Types | TO-220, TO-263 |
The fixed version has preset output voltages of 3.3V, 2.8V, or 2.5V.
Yes, the adjustable version requires only two external resistors to set the output voltage from 1.25V to 6V.
The dropout voltage is 500mV at 3A full load current.