Overview
The NCV51400MNTXG, produced by onsemi, is a source/sink Double Data Rate (DDR) termination regulator designed for low input voltage and low-noise systems. This regulator is particularly suited for applications where space is a critical factor. It maintains a fast transient response and requires a minimum output capacitance of 20 μF, making it efficient for various high-performance systems. The NCV51400MNTXG supports remote sensing and all power requirements for DDR VTT bus termination, and it can also be used in low-power chipsets and graphics processor cores that require dynamically adjustable output voltages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 2.375 to 5.5 | V |
| PVCC Voltage Range | 1.1 to 3.5 | V |
| Output Current (IOUT) | 3 | A |
| Output Voltage (VTT) | -0.1 to 3.5 | V |
| Operating Temperature | -40 to +125 | °C |
| Package Type | DFN-10 | |
| Remote Sense | Yes | |
| Power Good (PGOOD) | Yes | |
| Thermal Shutdown | Yes, at 150°C |
Key Features
- Integrated Power MOSFETs for efficient sourcing and sinking current.
- Fast load-transient response with minimal output capacitance requirement.
- Remote sensing (VTTS) for accurate feedback sensing of VTT.
- PGOOD logic output pin to monitor VTT regulation.
- EN logic input pin for shutdown mode.
- VRI reference input allows for flexible input tracking.
- Built-in soft start, under-voltage lockout, and over-current limit.
- Thermal shutdown protection with hysteresis.
- Available in thermally-efficient DFN10 Exposed Pad package.
- AEC-Q100 qualified and PPAP capable for automotive applications.
- Pb-free and RoHS compliant.
Applications
- DDR Memory Termination (DDR1, DDR2, DDR3, LPDDR3, DDR4).
- Desktop PCs, Notebooks, and Workstations.
- Servers and Networking equipment.
- Graphics Processor Core Supplies.
- Telecom/Datacom, GSM Base Station.
- Set Top Boxes, LCD-TV/PDP-TV, Copier/Printers.
- Automotive industry applications.
Q & A
- What is the primary function of the NCV51400MNTXG?
The NCV51400MNTXG is a source/sink Double Data Rate (DDR) termination regulator designed for low input voltage and low-noise systems.
- What is the minimum output capacitance required for the NCV51400MNTXG?
The minimum output capacitance required is 20 μF.
- What are the supported input voltage rails for the NCV51400MNTXG?
The device supports 2.5 V, 3.3 V, and 5 V input voltage rails.
- Does the NCV51400MNTXG support remote sensing?
Yes, it supports remote sensing through the VTTS pin.
- What is the purpose of the PGOOD pin on the NCV51400MNTXG?
The PGOOD pin is a logic output that monitors the VTT regulation and indicates when the VTT output is within ±20% of VRO.
- How does the thermal shutdown protection work on the NCV51400MNTXG?
The device shuts down when the junction temperature exceeds 150°C and resumes normal operation when the temperature falls back to 125°C.
- Is the NCV51400MNTXG suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive applications.
- What package type is the NCV51400MNTXG available in?
The device is available in a thermally-efficient DFN10 Exposed Pad package.
- Is the NCV51400MNTXG Pb-free and RoHS compliant?
Yes, it is Pb-free and RoHS compliant.
- What is the operating temperature range of the NCV51400MNTXG?
The operating temperature range is from -40°C to +125°C.
- What are some common applications of the NCV51400MNTXG?
Common applications include DDR memory termination, desktop PCs, notebooks, servers, graphics processor core supplies, and telecom/datacom equipment.
