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NCP51198PDR2G The On Semiconductor NCP51198PDR2G is a DDR Memory Termination Regulator designed for DDR-I, DDR-II, and DDR-III memory systems. It provides precise VTT voltage regulation.
Mfr Part #:

NCP51198PDR2G

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The On Semiconductor NCP51198PDR2G is a DDR Memory Termination Regulator designed for DDR-I, DDR-II, and DDR-III memory systems. It provides precise VTT voltage regulation.
✓ Total Stock: 140,979 pcs
$ Price Range: $0.75

NCP51198PDR2G Available from 3 distributors

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140,977 pcs
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1 pcs
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1 pcs
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NCP51198PDR2G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Output Voltage
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NCP51198PDR2G Description

Short technical summary and product information.

The NCP51198PDR2G from On Semiconductor is a cost-effective, high-speed linear regulator specifically designed to generate the VTT termination voltage rail for DDR-I, DDR-II, and DDR-III memory. This regulator is capable of actively sourcing or sinking up to ±1.5 A for DDR-I or up to ±0.5 A for DDR-II/III, while maintaining output voltage regulation within ±30 mV.

 

The device features an integrated high-speed differential amplifier for ultra-fast response to line and load transients. It supports source/sink soft-start and includes on-chip thermal shutdown protection. The NCP51198PDR2G operates over a voltage range of 2.2V to 5.5V and has an operating temperature range of -40°C to 125°C.

 

Designed for minimal external component count, the NCP51198PDR2G is available in an 8-SOIC package suitable for surface mounting. It also incorporates a power-saving Suspend To RAM (STR) function, which can tri-state the regulator output and lower quiescent current when the /SS pin is pulled low.

 

Applications include desktop PCs, notebooks, workstations, graphics card DDR memory termination, set-top boxes, digital TVs, printers, embedded systems, and active bus termination.

NCP51198PDR2G Quick Information

Product Type: DDR Memory Termination Regulator
Canonical Name: NCP51198PDR2G DDR Memory Termination Regulator
Subcategory: Special Purpose Regulators

NCP51198PDR2G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

NCP51198PDR2G Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

NCP51198PDR2G Features

  • Generates DDR memory termination voltage (VTT).
  • Supports DDR-I to ±1.5 A source/sink.
  • Supports DDR-II/III to ±0.5 A source/sink.
  • High-speed response to transients.
  • Integrated power MOSFETs with thermal protection.

NCP51198PDR2G Applications

  • Used in desktop PCs and notebooks.
  • Supports graphics card DDR memory.
  • Applicable for set-top boxes.
  • Suitable for embedded systems.
  • Features active bus termination.

NCP51198PDR2G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum source/sink current for DDR-I applications?

The regulator supports up to ±1.5 A for DDR-I.

What is the maximum source/sink current for DDR-II and DDR-III applications?

The regulator supports up to ±0.5 A for DDR-II and DDR-III.

What is the operating voltage range for the NCP51198PDR2G?

The operating voltage range is 2.2V to 5.5V.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

How many outputs does the NCP51198PDR2G have?

The device has 1 output.

What package type is the NCP51198PDR2G available in?

It is available in an 8-SOIC package.

Is the NCP51198PDR2G RoHS compliant?

The status is RoHS3 Compliant.

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