Datasheet for LT1581CT7-2.5#PBF:
- Manufacturer Part Number : LT1581CT7-2.5#PBF
- Manufacturer : AD
- Description : 10A, Very Low Dropout Regulator IC
- Series : LT1581
- Reference Price : USD 5.6
- Our Price : We have a better price, contact us by email
- Product Type : LDO Linear Regulators
- Function : Positive Linear Regulators (LDO)
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 7-Lead TO-220
- Pins : 7
- MFG Package Case : 05-08-1422 (STD)
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 50
- Working Temperature : 0 to 70C
- Other Part Number : LT1581CT7-2.5#PBF
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LT1581 is a 10A low dropout regulator designed to power the new generation of microprocessors. The dropout voltage of this device is 100mV at light loads rising to just 430mV at 10A. To achieve this dropout a second low current input voltage 1V greater than the output voltage is required. The device can also be used as a single supply device where dropout is comparable to an LT1584.
Several other new features have been added to the LT1581. A remote SENSE pin is brought out. This feature virtually eliminates output voltage variations due to load changes. Typical load regulation for a load current step of 100mA to 10A, measured at the SENSE pin, is less than 1mV.
The LT1581 has fast transient response, equal to the LT1584. On fixed voltage devices, the ADJUST pin is brought out. A small capacitor on the ADJUST pin further improves transient response.
This device is ideal for generating processor supplies of 2V to 3V on motherboards where both 5V and 3.3V supplies are available.
Applications
- Microprocessor Supplies
- Post Regulators for Switching Supplies
- High Current Regulators
- 5V to 3.XXV for Pentium® Processors Operating at 90MHz to 166MHz and Beyond
- 3.3V to 2.9V for Portable Pentium Processor
- PowerPC™ Series Power Supplies
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
