Overview
The NCV51400MWTXG is a 3 Amp VTT (Voltage Terminator) termination regulator designed by onsemi, specifically for low input voltage and low-noise systems. This component is part of the NCP51400 and NCV51400 series, which are source/sink Double Data Rate (DDR) termination regulators. It is optimized for applications where space is a critical factor and supports various DDR memory types including DDR1, DDR2, DDR3, LPDDR3, and DDR4. The regulator integrates high-performance, low-dropout (LDO) linear regulators capable of both sourcing and sinking current, ensuring fast transient response and minimal external component requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2.375 | 5.5 | V | |
| PVCC Voltage Range | 1.1 | 3.5 | V | |
| VRI Voltage Range | 0.5 | 1.8 | V | |
| Operating Temperature (TA) | -40 | 125 | °C | |
| Output Capacitance | 20 | μF | ||
| Thermal Shutdown Temperature | 150 | °C | ||
| Package Type | DFN10 Exposed Pad |
Key Features
- Supports input voltage rails of 2.5 V, 3.3 V, and 5 V
- Integrated power MOSFETs for efficient operation
- Fast load-transient response with minimal output capacitance requirement (20 μF)
- Remote sensing (VTTS) for accurate feedback
- PGOOD logic output pin to monitor VTT regulation
- EN logic input pin for shutdown mode
- VRI reference input for flexible input tracking
- Built-in soft start, under-voltage lockout, and over-current limit
- Thermal shutdown protection
- Small, low-profile 10-pin DFN package
- AEC-Q100 qualified and PPAP capable for automotive applications
- Pb-free and RoHS compliant
Applications
- DDR memory termination
- Desktop PCs, notebooks, and workstations
- Servers and networking equipment
- Telecom/Datacom, GSM base stations
- Graphics processor core supplies
- Set Top Boxes, LCD-TV/PDP-TV, copier/printers
- Chipset/RAM supplies as low as 0.5 V
- Active bus termination
Q & A
- What is the primary function of the NCV51400MWTXG? The NCV51400MWTXG is a source/sink Double Data Rate (DDR) termination regulator designed for low input voltage and low-noise systems.
- What DDR memory types does it support? It supports DDR1, DDR2, DDR3, LPDDR3, and DDR4.
- What is the minimum output capacitance required? The minimum output capacitance required is 20 μF.
- What is the purpose of the VTTS pin? The VTTS pin provides accurate remote feedback sensing of VTT.
- What is the thermal shutdown temperature? The thermal shutdown temperature is 150°C.
- Is the NCV51400MWTXG Pb-free and RoHS compliant? Yes, it is Pb-free and RoHS compliant.
- What package type is used for the NCV51400MWTXG? It is available in a 10-pin DFN Exposed Pad package.
- What are the supported input voltage rails? It supports 2.5 V, 3.3 V, and 5 V input voltage rails.
- Does it have built-in protection features? Yes, it includes built-in soft start, under-voltage lockout, and over-current limit, as well as thermal shutdown protection.
- Is it suitable for automotive applications? Yes, it is AEC-Q100 qualified and PPAP capable for automotive applications.
