Overview
| Information | 3A Ultra Low Dropout Voltage Regulator |
|---|---|
| Output Option | Adjustable |
| VOUT (V) | Adj |
| VOUT Adj MIN (V) | 1.25 |
| VOUT Adj MAX (V) | 6 |
| IOUT (mA) | 3000 |
| VIN MIN (V) | 1.8 |
| VIN MAX (V) | 5.5 |
| IQ (µA) | 5000 |
| Accuracy (%) | 2% |
| Vdrop (mV) | 400 |
| Output Noise (µVRMS) | - |
| PSRR (dB) | 80 |
| Junction Temp Range (°C) | 0 to 125 |
| Package | TO263-5 |
| Features | Enable,Remote sense,Current limit and thermal protection |
The SPX1582 is a 3A low dropout regulator with 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 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 use in 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 supply applications.
The SPX1582 offers protection against overcurrent faults, reversed input polarity, over temperature operation and positive or negative transient voltages.
The SPX1582 is offered in a 5-pin TO-220 and TO-263 compatible with industry standard 5-terminal regulators. For 5A, 3A and 1.5A ultra-low dropout versions refer to SPX1581, SPX1582 and SPX1583 datasheets respectively.
- Low dropout voltage 500mV at 3A full load current
- Adjustable ouput down to 1.25V from ATX power supply
- Extremely tight load and line regulation
- Standard 5-terminal low cost TO263
Documentation & Design Tools
| Type | Title | Version | Date | File Size |
|---|---|---|---|---|
| Data Sheets | 3A Ultra Low Dropout Voltage Regulator Fast Response, Adjustable & Fixed | R00 | May 2023 | 347 KB |
| Application Notes | AN200, Downloading and Installing CAD Symbols and Footprints with Ultra Librarian | April 2019 | 1.2 MB | |
| Product Brochures | Power Management Brochure | October 2020 | 2.4 MB | |
| Symbols & Footprints | SPX1582T5-L/TR CAD File (.bxl) | September 2018 | 18.5 KB |
Quality & RoHS
Parts & Purchasing
| Part Number | Pkg Code | Min Temp | Max Temp | Status | Suggested Replacement | Buy Now | Order Samples | PDN |
|---|---|---|---|---|---|---|---|---|
| SPX1582HT5-L | TO-263-5 | 0 | 125 | OBS | ||||
| SPX1582HT5-L/TR | TO-263-5 | 0 | 125 | OBS | ||||
| SPX1582T5 | TO-263-5 | 0 | 125 | OBS | ||||
| SPX1582T5-1-5 | TO-263-5 | OBS | ||||||
| SPX1582T5-1-8 | TO-263-5 | OBS | ||||||
| SPX1582T5-2-5 | TO-263-5 | OBS | ||||||
| SPX1582T5-2-5/TR | TO-263-5 | OBS | ||||||
| SPX1582T5-2-8 | TO-263-5 | OBS | ||||||
| SPX1582T5-2-8/TR | TO-263-5 | OBS | ||||||
| SPX1582T5-2-85 | TO-263-5 | OBS | ||||||
| SPX1582T5-2-85/TR | TO-263-5 | OBS | ||||||
| SPX1582T5-3-3 | TO-263-5 | 0 | 125 | OBS | ||||
| SPX1582T5-3-3/TR | TO-263-5 | OBS | ||||||
| SPX1582T5-5-0 | TO-263-5 | OBS | ||||||
| SPX1582T5-5-0/TR | TO-263-5 | OBS | ||||||
| SPX1582T5-L | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L-1-5 | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L | |||
| SPX1582T5-L-1-5/TR | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L-1-8 | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L | |||
| SPX1582T5-L-1-8/TR | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L-2-5 | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L-2-5/TR | |||
| SPX1582T5-L-2-5/TR | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L-2-8 | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L | |||
| SPX1582T5-L-2-8/TR | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L-2-85 | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L | |||
| SPX1582T5-L-2-85/TR | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L-3-0 | TO-263-5 | 0 | 125 | OBS | ||||
| SPX1582T5-L-3-0/TR | TO-263-5 | 0 | 125 | OBS | ||||
| SPX1582T5-L-3-3 | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L | |||
| SPX1582T5-L-3-3/TR | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L-5-0 | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L | |||
| SPX1582T5-L-5-0/TR | TO-263-5 | 0 | 125 | OBS | SPX1582T5-L/TR | |||
| SPX1582T5-L/TR | TO-263-5 | 0 | 125 | Active | Order | |||
| SPX1582T5/TR | TO-263-5 | 0 | 125 | OBS | ||||
| SPX1582U5 | TO-220-5 | 0 | 125 | OBS | ||||
| SPX1582U5-1-5 | TO-220-5 | OBS | ||||||
| SPX1582U5-1-8 | TO-220-5 | OBS | ||||||
| SPX1582U5-2-5 | TO-220-5 | OBS | ||||||
| SPX1582U5-2-8 | TO-220-5 | OBS | ||||||
| SPX1582U5-2-8/TR | TO-220-5 | 0 | 125 | OBS | ||||
| SPX1582U5-2-85 | TO-220-5 | OBS | ||||||
| SPX1582U5-2-85/TR | TO-220-5 | 0 | 125 | OBS | ||||
| SPX1582U5-3-3 | TO-220-5 | OBS | ||||||
| SPX1582U5-5-0 | TO-220-5 | OBS | ||||||
| SPX1582U5-5-0/TR | TO-220-5 | 0 | 125 | OBS | ||||
| SPX1582U5-L | TO-220-5 | OBS | ||||||
| SPX1582U5-L-1-5 | TO-220-5 | OBS | ||||||
| SPX1582U5-L-1-8 | TO-220-5 | OBS | ||||||
| SPX1582U5-L-2-5 | TO-220-5 | 0 | 125 | OBS | ||||
| SPX1582U5-L-2-8 | TO-220-5 | OBS | ||||||
| SPX1582U5-L-2-85 | TO-220-5 | OBS | ||||||
| SPX1582U5-L-3-0 | TO-220-5 | 0 | 125 | OBS | ||||
| SPX1582U5-L-3-3 | TO-220-5 | OBS | ||||||
| SPX1582U5-L-5-0 | TO-220-5 | OBS | ||||||
| SPX1582UT-L-5-0 | TO-220-5 | 0 | 125 | OBS |
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
Packaging
Notifications
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