Overview
The TPS51225CRUKR, manufactured by Texas Instruments, is a high-performance dual synchronous step-down controller designed to provide efficient and stable power delivery for various computing applications. This component is particularly suited for powering DDR memory modules, ensuring reliable performance and high efficiency. It integrates multiple features such as built-in linear regulators, adaptive on-time control, and comprehensive protection mechanisms, making it a versatile solution for system-power supply needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 5.5 V to 24 V | V |
| Output Voltage Range | 0.7 V to 3.6 V (Adjustable) | V |
| Output Current | Up to 20 A | A |
| Switching Frequency | Adjustable, up to 2 MHz | Hz |
| Efficiency | Up to 95% | % |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 20-pin QFN | - |
Key Features
- Wide Input Voltage Range: Operates from 5.5 V to 24 V, suitable for various power supply configurations.
- High Output Current: Supports up to 20 A output current, meeting the demands of DDR memory modules.
- Adjustable Switching Frequency: Allows flexibility in optimizing efficiency and size of the power delivery system.
- Integrated FET Drivers: Simplifies design and improves system reliability.
- Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout.
- Power Good Signal: Indicates when the output voltage is stable and within regulation.
- Adaptive On-time D-CAP™ Mode Control: Provides convenient and efficient operation.
- Built-in 100-mA, 5-V and 3.3-V LDOs: Reduces the need for external components.
- Clock Output for Charge-Pump: The 260-kHz VCLK output can drive an external charge pump.
- Internal 0.8-ms Voltage Servo Soft-Start: Ensures smooth control of the output voltage during start-up.
- Output Discharge Function: Discharges outputs using internal MOSFETs.
Applications
- Computing Systems: Widely used for powering DDR memory modules in notebooks, netbooks, and tablet computers.
- Networking Equipment: Employed in routers and switches for providing efficient power to memory components.
- Embedded Systems: Used in industrial control systems and IoT devices for powering memory modules.
- Data Storage Devices: Crucial in maintaining stable power for memory components in solid-state drives (SSDs) and external drives.
Q & A
- What is the input voltage range of the TPS51225CRUKR?
The input voltage range is from 5.5 V to 24 V.
- What is the maximum output current supported by the TPS51225CRUKR?
The TPS51225CRUKR supports up to 20 A output current.
- What is the adjustable switching frequency range of the TPS51225CRUKR?
The switching frequency is adjustable up to 2 MHz.
- Does the TPS51225CRUKR have built-in linear regulators?
- What protection features are included in the TPS51225CRUKR?
The device includes overcurrent protection, thermal shutdown, and undervoltage lockout.
- What is the purpose of the VCLK output in the TPS51225CRUKR?
The 260-kHz VCLK output can be used to drive an external charge pump.
- How does the TPS51225CRUKR handle soft-start and discharge operations?
The device operates an internal 0.8-ms voltage servo soft-start and discharges outputs using internal MOSFETs.
- What is the operating temperature range of the TPS51225CRUKR?
The operating temperature range is from -40°C to +125°C.
- In what types of applications is the TPS51225CRUKR commonly used?
It is commonly used in computing systems, networking equipment, embedded systems, and data storage devices.
- Does the TPS51225CRUKR have a power good signal indicator?
