TPS51200DRCR: High-performance DDR terminal power management chip

In modern high-speed memory systems, DDR (Double Data Rate) memory is widely used in servers, laptops, desktops, and embedded devices. To ensure the data integrity of DDR memory, the stability of the memory terminal (VTT) voltage is of vital importance. Texas Instruments has launched the TPS51200DRCR, which is a high-performance LDO (Low Dropout Linear Regulator) chip specifically designed for DDR memory terminals.

Feature

• Input Voltage: Supports 2.5V and 3.3V power rails

• VLDOIN Voltage Range: 1.1V to 3.5V

• Current sink and source terminals with voltage drop compensation function

• Requires ultra-small output capacitor of 20μF (typically 3 × 10μFMLCC), suitable for memory terminal applications (DDR)

• PGOOD for monitoring output regulation

• EN Input

• REFIN Input allows flexible input tracking either directly or through a resistor divider

• Remote Detection (VOSNS)

• ±10mA Buffered Reference (REFOUT)

• Built-in Soft Start, Under Voltage Lockout (UVLO), and Over Current Limit (OCL)

• Thermal Shutdown

• Supports DDR, DDR2, DDR3, DDR3L, Low Power DDR3, and DDR4 VTT applications

• 10-pin ultra-thin small outline no-leads (VSON) package with heat sink pads

Packaging and Dimensions

The TPS51200DRCR adopts a compact 10-pin VSON package (3mm × 3mm), with an internal heat sink pad. It is suitable for PCB designs with limited space and provides excellent heat dissipation performance, enhancing system reliability.

Application

1.Memory Termination Regulator for DDR, DDR2, DDR3, DDR3L, LPDDR3, and DDR4

Main Role: Provides stable termination voltage (VTT) and reference voltage (VTTREF) for memory buses.

Technical Advantages:

Precisely tracks reference input voltage, deviation within ±25mV to ensure signal integrity;

±3A source/sink current capability meets dynamic demands of high-speed memory operations;

Compatible with multiple DDR generations for unified platform design.

Applications:

High-performance memory modules

Motherboard and memory controller designs

High-speed memory interface systems

2.Notebooks, Desktops, and Servers

Main Role: Provides reliable termination power for memory modules in computing platforms.

Technical Advantages:

Compact 3mm × 3mm VSON package suitable for space-constrained portable devices;

Low output capacitance requirement reduces system cost and PCB complexity;

Integrated protection features improve overall system stability.

Applications:

Commercial and consumer laptops

Desktop motherboards and memory modules

Data center servers and HPC platforms

3.Telecommunications and Data Communication

Main Role: Supplies stable termination voltage for high-speed communication processors and memory systems.

Technical Advantages:

Ensures memory stability under high bandwidth and concurrent access;

Fast dynamic load response suitable for fluctuating data traffic scenarios;

Built-in PGOOD signal allows real-time power status monitoring.

Applications:

Core routers and switches

Optical transmission and access equipment

Large-capacity network storage systems

4.Base Stations

Main Role: Powers memory terminations in baseband processors and RF modules of wireless systems.

Technical Advantages:

Stable operation within industrial temperature range (–40°C to +85°C);

Excellent thermal performance for high-density, high-load base station environments;

Accurate reference voltage optimizes data synchronization in high-speed transmission.

Applications:

4G/5G mobile communication base stations

Micro base stations and remote radio units (RRU)

Control modules in core telecom equipment

5.LCD and PDP Televisions

Main Role: Provides precise power for memory modules in display driver controllers.

Technical Advantages:

Outstanding power noise suppression enhances display image quality;

Compact package saves space on TV mainboards;

Low-power design supports energy-efficient TV systems.

Applications:

Smart LCD TVs

Plasma PDP TVs

Home theater display units

6.Copiers and Printers

Main Role: Powers cache and image processing memory in embedded control units.

Technical Advantages:

Stable termination voltage ensures data integrity during image processing;

Supports high-load duty cycles for industrial office environments;

Thermal and undervoltage protection enhances system life and stability.

Applications:

Office copiers

High-speed printers

Industrial imaging output devices

7.Set-Top Boxes

Main Role: Powers embedded memory and video processing modules.

Technical Advantages:

Compact package ideal for miniaturized consumer electronics;

Fast dynamic response supports high-resolution video processing;

Simplified external design shortens development cycles.

Applications:

IPTV set-top boxes

Digital TV boxes

Network multimedia players

Design Advantages

In DDR terminal power supply applications, the TPS51200DRCR offers the following significant advantages:

Precise VTT output effectively reduces memory signal reflection and noise.

Integrated design reduces the number of peripheral components, enhances design reliability, and lowers BOM costs.

Compact packaging is suitable for modern high-density circuit board designs and supports automated SMT production processes. Rich protection and monitoring functions enhance system stability and fault protection capabilities.

Conclusion

In the DDR memory power supply design, TPS51200DRCR, with its high precision, high current capacity, small package size and rich functional integration, has become the preferred solution for many system design engineers. If you are developing the next-generation high-performance computing platform, TPS51200DRCR undoubtedly can provide solid and reliable support for your memory power supply system.