NCP51145: 1.8A Source / Sink VTT DDR Termination Regulator
The NCP51145 is a linear regulator designed to supply a regulated VTT termination voltage for DDR−II, DDR−III, LPDDR−III and DDR−IV memory applications. The regulator is capable of actively sourcing and sinking ±1.8 A peak currents while regulating an output voltage to within ±20 mV. The output termination voltage is regulated to track VDDQ / 2 by two external voltage divider resistors connected
to the PVCC, GND, and VREF pins.
The NCP51145 incorporates a high−speed differential amplifier to provide ultra−fast response to line and load transients. Other features include source/sink current limiting, soft−start and on−chip thermal shutdown protection.
特性- For DDR VTT Applications, Source/Sink Currents
- Supports DDR−II to ±1.8 A, DDR−III to ±1.5 A
- Supports LPDDR−III and DDR−IV to ±1.2 A
- Stable Using Ceramic−Only (Very Low ESR) Capacitors
- Integrated Power MOSFETs
- High Accuracy VTT Output at Full−Load
- Fast Transient Response
- Built−in Soft−Start
- Shutdown for Standby or Suspend Mode
- Integrated Thermal and Current−Limit Protection
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应用- DDR−II / DR−III / DDR−IV SDRAM Termination Voltage
- Low Power DDR−3LP
| 终端产品- Motherboard, Notebook, and VGA Card Memory Termination
- Set Top Box, Digital TV, Printers
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数据表 (1)
封装图纸 (2)
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| NCP51145MNTAG | Active | Pb-free
Halide free | DFN-8 | 506AA | 1 | Tape and Reel | 3000 | $0.1733 |
| NCP51145PDR2G | Active | Pb-free
Halide free | SOIC-8 NB EP | 751BU | 2 | Tape and Reel | 2500 | $0.16 |
订购产品技术参数
| Product | IOUT VTT Max (A) | IQ Typ (µA) | VCC Bias Min (V) | VCC Bias Max (V) | Remote Sense | Power Good |
|---|
| NCP51145MNTAG | 1.8 | 1000 | 4.75 | 5.25 | No | No |
| NCP51145PDR2G | 1.8 | 1000 | 4.75 | 5.25 | No | No |
