TPS56C215RNNT

Voltage Regulators - DC DC Switching Regulators Overview

The TPS56C215RNNT is a synchronous buck converter from Texas Instruments featuring the SWIFT topology. It integrates high-side and low-side MOSFETs with on-resistances of 13.5 mΩ and 4.5 mΩ, respectively. The device supports an input voltage range of 4.5 V to 17 V and delivers up to 12 A of continuous output current. Output voltage is adjustable from 0.6 V to 5.5 V using the D-CAP3 control mode for fast transient response. It operates at selectable switching frequencies of 400 kHz, 800 kHz, or 1.2 MHz. The component functions within a junction temperature range of -40°C to +150°C and is housed in a 18-VQFN-HR (3.5 mm x 3.5 mm) package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates low RDS(on) power MOSFETs for high efficiency and simplified design requiring minimal external components.
• Utilizes adaptive constant on-time D-CAP3 control mode to achieve rapid load transient response without external compensation.
• Offers selectable switching frequencies and operation modes including Auto-Skip Eco-Mode for light-load efficiency and Forced Continuous Conduction Mode for narrow ripple.

Voltage Regulators - DC DC Switching Regulators Applications

• Server, cloud computing, and storage systems
• Telecommunications and networking point-of-load (POL) applications
• Industrial automation, PLCs, and test measurement equipment
• High-end digital television sets

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and thermal pad configurations. Ensure compatibility with moisture sensitivity level requirements during assembly. Confirm that the selected switching frequency setting aligns with the intended filter design. Validate that the input voltage range covers the system's operational extremes. Check for any recent product change notices regarding packaging or material composition updates.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for space-constrained designs requiring high current density in a small footprint. The integrated MOSFETs reduce the bill of materials compared to discrete solutions. Consider the D-CAP3 architecture if fast transient response is critical without complex compensation networks. Evaluate the available switching frequencies to balance efficiency against passive component size. Ensure the thermal performance of the HotRod QFN package meets the application's heat dissipation needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the TPS56C215 family of single-phase synchronous buck converters. It is designed as one of the smallest monolithic 12A solutions available. The family shares the SWIFT interface and D-CAP3 control methodology. Other variants may differ in current rating or package type but maintain similar functional characteristics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for direct replacements. Verify electrical parameters such as current rating and input voltage range match the original design requirements. Ensure pin-to-pin compatibility if board space cannot be altered. Review thermal characteristics to maintain adequate heat dissipation in the existing layout.