NCP51199: 2 Amps DDR Termination Regulator
The NCP51199 is a linear regulator designed to supply a regulated VTT termination voltage for DDR-2 and DDR-3 memory applications.The regulator is capable of actively sourcing and sinking +-2A peak currents for DDR-2 and DDR-3 up to +-1.5A while regulating the VTT output voltage to within +-10mV.The output termination voltage is regulated to track VDDQ2 by two external voltage divider resistors connected to the PVCC,GND,and VREF pins.
Features- Supports DDR2 VTT Termination to 2 A, DDR3 to 1.5 A (peak
- Supports DDR VTT Voltages as low as 600 mV at 1.2 A (peak)
- Integrated Power MOSFETs
- Stable with 10uF Ceramic Capacitance on VTT Output
- High Accuracy VTT Output at FullLoad
- Fast Transient Response
- Builtin SoftStart
- Shutdown for Standby or Suspend Mode
- Integrated Thermal and CurrentLimit Protection
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Applications- SDRAM Termination Voltage for DDR2 / DDR3
- Motherboard, Notebook, and VGA Card Memory Termination
- Set Top Box, Digital TV, Printers
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Simulation Models (1)
Package Drawings (1)
| Document Title | Document ID/Size | Revision |
|---|
| SOIC8 NB EP | 751BU (37.6kB) | E |
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCP51199PDR2G | Active | Pb-free
Halide free | SOIC-8 NB EP | 751BU | 3 | Tape and Reel | 2500 | $0.2267 |
| NCV51199PDR2G | Active | AEC Qualified
PPAP Capable
Pb-free
Halide free | SOIC-8 NB EP | 751BU | 2 | Tape and Reel | 2500 | $0.213 |
Specifications
| Product | IOUT VTT Max (A) | IQ Typ (µA) | VCC Bias Min (V) | VCC Bias Max (V) | Remote Sense | Power Good |
|---|
| NCP51199PDR2G | 2 | 800 | 4.75 | 5.25 | No | No |
| NCV51199PDR2G | 2 | 800 | 4.75 | 5.25 | No | No |
