Datasheet for LTC3831:
- Manufacturer Part Number : LTC3831
- Manufacturer : AD
- Description : High Power Synchronous Switching Regulator Controller for DDR Memory Termination
- Series : LTC3831
- Reference Price : USD 2.32
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : DDR Memory/Bus Termination
- 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 : LTC3831
- 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 LTC3831. If you need any more information about LTC3831, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The LTC3831 is a high power, high efficiency switching regulator controller designed for DDR memory termination. The LTC3831 generates an output voltage equal to 1/2 of an external supply or reference voltage. The LTC3831 uses a synchronous switching architecture with N-channel MOSFETs. Additionally, the chip senses output current through the drain-source resistance of the upper N-channel FET, providing an adjustable current limit without a current sense resistor.
The LTC3831 operates with input supply voltage as low as 3V and with a maximum duty cycle of >91%. It includes a fixed frequency PWM oscillator for low output ripple operation. The 200kHz free-running clock frequency can be externally adjusted or synchronized with an external signal from 100kHz to above 500kHz. In shutdown mode, the LTC3831 supply current drops to <10µA.
| Feedback Voltage | Accuracy Over Temp | |
| LTC3831 | 1.25V | 1.5% |
| LTC3831-1 | 0.75V | 1.6% |
Applications
- DDR SDRAM Termination
- SSTL_2 Interface
- SSTL_3 Interface
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.
