Datasheet for LTC1909-8:
- Manufacturer Part Number : LTC1909-8
- Manufacturer : AD
- Description : Wide Operating Range, No RSENSETM Step-Down DC/DC Controller with SMBus Programming
- Series : LTC1909-8
- Reference Price : USD 4.04
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Digitally Programmable Regulators
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC1909-8
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for LTC1909-8. If you need any more information about LTC1909-8, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The LTC1909-8 is a synchronous step-down switching regulator controller with a digitally programmable output voltage. The output voltage is selected from one of two 5-bit settings programmed into internal registers via a 2-wire SMBus/I²C interface. The interface features safeguards against invalid output voltages and allows the microprocessor to turn the regulator on and off. Valley current control delivers very low duty cycles without requiring a sense resistor. Operating frequency is selected by an external resistor and is compensated for variations in VIN and VOUT.
Discontinuous mode operation provides high efficiency operation at light loads. A forced continuous control pin reduces noise and RF interference and can assist secondary winding regulation by disabling discontinuous mode operation when the main output is lightly loaded.
Fault protection is provided by internal foldback current limiting, an output overvoltage comparator and optional short-circuit shutdown timer.
The LTC1909-8 is available in the 28-lead SSOP package.
Applications
- Power Supplies for DSPs, ASICs, FPGAs and CPUs
- Voltage Margining
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.
