TDA21472

The TDA21472 is a high-performance OptiMOS™ Powerstage DC-DC converter that combines a low quiescent-current synchronous buck gate-driver IC co-packaged with a Schottky diode, as well as high-side and low-side MOSFETs. This integrated package is specifically optimized for PCB layout, heat transfer, driver/MOSFET control timing, and minimal switch node ringing when layout guidelines are followed.

Key Features

• High Efficiency: The gate driver and MOSFET combination enable higher efficiency at lower output voltages, which is essential for cutting-edge CPU, GPU, and DDR memory designs.
• Accurate Current Sensing: The TDA21472 features an internal MOSFET current sense algorithm with temperature compensation, achieving superior current sense accuracy compared to best-in-class controller-based inductor DCR sense methods.
• Comprehensive Protection: Protection features include cycle-by-cycle overcurrent protection with a programmable threshold, VCC/VDRV UVLO protection, phase fault detection, IC temperature reporting, and thermal shutdown.
• Auto-Replenishment: The TDA21472 has the ability to auto-replenish the bootstrap capacitor, preventing over-discharging.
• Deep-Sleep Power Saving Mode: This device features a deep-sleep power saving mode that significantly reduces power consumption when the multiphase system enters PS3/PS4 mode.
• Optimized Package: The package is optimized for ease of use in PCB design, with considerations for heat transfer and minimal switch node ringing.

Specifications

• Input Voltage: Max 25V
• Output Current: 70A
• Switching Frequency: 100 kHz to 1500 kHz
• Package Type: PQFN 5×6 or IQFN-39-EP (5×6)
• Operating Temperature: -40°C to +125°C

Potential Applications

• CPUs and GPUs: The TDA21472 is ideal for use in power distribution systems for CPUs and GPUs, providing high efficiency and reliable protection.
• DDR Memory Arrays: It can also be used in DDR memory arrays, ensuring stable and efficient power delivery.
• 48V Power Distribution: Suitable for 48V power distribution systems in various applications.
• Body Electronics and Power Distribution: In automotive and other transportation systems, the TDA21472 can be used in body electronics and power distribution systems.
• Edge Server Solutions and Telecommunication Infrastructure: Its high efficiency and reliability make it a suitable choice for edge server solutions and telecommunication infrastructure.

In summary, the TDA21472 is a versatile and high-performance DC-DC converter that offers a combination of efficiency, accuracy, and protection features. Its optimized package and comprehensive specifications make it suitable for a wide range of applications, including CPUs, GPUs, DDR memory arrays, and more.