Overview
The TPS51200DRCT device, produced by Texas Instruments, is a sink and source double data rate (DDR) termination regulator. It is specifically designed for low input voltage, low-cost, and low-noise systems where space is a critical consideration. The regulator maintains a fast transient response and requires a minimum output capacitance of only 20 µF, making it suitable for memory termination applications in DDR, DDR2, DDR3, DDR3L, Low-Power DDR3, and DDR4 systems. The device is available in a thermally efficient 10-pin VSON package with a thermal pad and is rated both Green and Pb-free, operating within a temperature range of –40°C to +85°C.
Key Specifications
| Specification | Value |
|---|---|
| Package | 10-Pin VSON with Thermal Pad |
| Operating Temperature Range | –40°C to +85°C |
| Input Voltage Range | 2.375 V to 3.5 V |
| VLDOIN Voltage Range | 1.1 V to 3.5 V |
| Minimum Output Capacitance | 20 µF (Typically 3 × 10-µF MLCCs) |
| PGOOD Signal | Open-drain to monitor output regulation |
| EN Input | For discharging VTT during S3 (suspend to RAM) |
| REFIN Input | Allows for flexible input tracking |
| Remote Sensing | VOSNS |
| Buffered Reference (REFOUT) | ±10-mA |
| Soft Start, UVLO, and OCL | Built-in |
| Thermal Shutdown | Yes |
Key Features
- Supports 2.5-V and 3.3-V input rails
- Sink and source termination regulator with droop compensation
- Requires minimum output capacitance of 20 µF for DDR applications
- PGOOD signal to monitor output regulation
- EN input for discharging VTT during S3 (suspend to RAM)
- REFIN input for flexible input tracking
- Remote sensing (VOSNS)
- ±10-mA buffered reference (REFOUT)
- Built-in soft start, UVLO, and OCL
- Thermal shutdown
- Supports DDR, DDR2, DDR3, DDR3L, Low-Power DDR3, and DDR4 VTT applications
Applications
- Memory termination regulator for DDR, DDR2, DDR3, DDR3L, Low-Power DDR3, and DDR4
- Notebooks, desktops, and servers
- Telecom and datacom systems
- Base stations
- LCD-TVs and PDP-TVs
- Copiers and printers
- Set-top boxes
Q & A
- What is the primary function of the TPS51200DRCT?
The TPS51200DRCT is a sink and source double data rate (DDR) termination regulator designed for low input voltage, low-cost, and low-noise systems.
- What is the operating temperature range of the TPS51200DRCT?
The operating temperature range is –40°C to +85°C.
- What is the minimum output capacitance required for DDR applications?
The minimum output capacitance required is 20 µF, typically achieved with 3 × 10-µF MLCCs.
- What signals does the TPS51200DRCT provide for monitoring and control?
The device provides an open-drain PGOOD signal to monitor output regulation and an EN signal to discharge VTT during S3 (suspend to RAM).
- Does the TPS51200DRCT support remote sensing?
Yes, the device supports remote sensing (VOSNS).
- What is the purpose of the REFIN input on the TPS51200DRCT?
The REFIN input allows for flexible input tracking either directly or through a resistor divider.
- What types of DDR applications does the TPS51200DRCT support?
The device supports DDR, DDR2, DDR3, DDR3L, Low-Power DDR3, and DDR4 VTT applications.
- What is the package type and thermal characteristics of the TPS51200DRCT?
The device is available in a 10-pin VSON package with a thermal pad and is thermally efficient.
- Is the TPS51200DRCT compliant with environmental regulations?
Yes, the device is rated both Green and Pb-free.
- What are some common applications of the TPS51200DRCT?
Common applications include memory termination in notebooks, desktops, servers, telecom and datacom systems, base stations, LCD-TVs, PDP-TVs, copiers, printers, and set-top boxes.
