TPS51427ARHBT

Special Purpose Regulators Overview

The TPS51427ARHBT is a dual D-Cap synchronous step-down controller manufactured by Texas Instruments. It operates with an input voltage range of 4.5 V to 28 V and supports switching frequencies from 25 kHz to 500 kHz. The device provides two independent outputs, each capable of delivering up to 20 A. Output voltages are adjustable between 700 mV and 5.9 V. It functions within an ambient temperature range of -40°C to +85°C and utilizes a 32-pin VQFN package.

Special Purpose Regulators Feature Summary

• Integrates Dual D-Cap mode control for enhanced transient response and stability without requiring external compensation networks.
• Supports high output currents up to 20 A per channel with integrated low-side MOSFET drivers.
• Features programmable switching frequency allowing optimization for efficiency or size constraints.

Special Purpose Regulators Applications

• Server and storage power distribution modules
• Telecommunications base station bias supplies
• Industrial equipment central power architectures

Special Purpose Regulators Procurement Notes

Verify the specific suffix 'RHBT' against the manufacturer's current datasheet to confirm pinout and thermal pad configuration. Ensure the ordering quantity aligns with the factory reel packaging requirements specified in the official documentation. Confirm RoHS compliance status directly from the product data sheet prior to integration.

Special Purpose Regulators Selection Notes

Select this component when designing systems requiring dual isolated rails with high current density. The D-Cap architecture simplifies layout compared to traditional voltage mode controllers. Verify that the required output voltage range falls within the 700 mV to 5.9 V specification. Ensure the application environment stays within the -40°C to +85°C operating temperature limits defined for this package variant.

Special Purpose Regulators Part Context

This part belongs to the TPS51427 family of dual synchronous buck controllers. It is designed for applications demanding high efficiency and fast transient response. The device integrates gate drivers and control logic into a compact footprint, reducing the overall solution size for point-of-load conversion stages in dense electronic systems.

Special Purpose Regulators Replacement Considerations

Consult the manufacturer's cross-reference guide for verified substitutes. Ensure any alternative maintains compatible pinouts and electrical specifications for direct replacement.