Datasheet for LTC3831EGN#PBF:
- Manufacturer Part Number : LTC3831EGN#PBF
- Manufacturer : AD
- Description : High Power Synchronous Switching Regulator Controller for DDR Memory Termination IC
- 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 : ROHS Compliant (Lead Free)
- Package Type : 16-Lead SSOP (Narrow 0.15 Inch)
- Pins : 16
- MFG Package Case : 05-08-1641 (GN16)
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 100
- Working Temperature : -40 to 125C
- Other Part Number : LTC3831EGN#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 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.
