TPS5124DBTR

DC DC Switching Controllers Overview

The TPS5124DBTR is a dual-channel synchronous step-down PWM controller manufactured by Texas Instruments. It operates with a fixed switching frequency of 500 kHz and supports output voltages ranging from 900 mV to 12 V. The device delivers up to 20 A per channel and functions within an input voltage range of 6.5 V to 15 V. It utilizes voltage-mode control and features a maximum duty cycle of 80%. The component is housed in a 30-pin TSSOP package, operates between -40°C and +85°C, and consumes 1.1 mA of quiescent current.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture for independent power rail generation
• Fixed 500 kHz switching frequency for optimized passive size
• Voltage-mode control topology for stable regulation
• Integrated synchronous rectification drive capability

DC DC Switching Controllers Applications

• Embedded computing systems requiring multiple low-voltage rails
• Telecommunications infrastructure power distribution
• Industrial equipment power management modules
• Server and networking board voltage regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'G4' or absence thereof against the manufacturer's official datasheet to confirm lead-free compliance and RoHS status. Confirm the tape-and-reel packaging designation matches the required handling specifications. Ensure the operating temperature range aligns with the target environmental conditions. Cross-reference the pinout diagram with the PCB layout to prevent installation errors.

DC DC Switching Controllers Selection Notes

Select this controller when a fixed 500 kHz frequency is preferred over adjustable options to simplify filter design. It is suitable for applications requiring two independent buck outputs with synchronized operation. Consider the 30-pin TSSOP package constraints regarding thermal dissipation and board space. Evaluate the 20 A current capability against the peak load requirements of the downstream circuitry.

DC DC Switching Controllers Part Context

This component belongs to the TPS5124 family of dual synchronous step-down controllers. It shares architectural similarities with the TPS5120 but differs in switching frequency characteristics. The DBTR variant specifically denotes the tape-and-reel packaging format, distinguishing it from tube-packaged versions like the TPS5124DBT.

DC DC Switching Controllers Replacement Considerations

The TPS5124DBTRG4 is a verified lead-free alternative within the same series. Verify functional compatibility before substituting with other dual-channel controllers such as the TPS5120, noting differences in switching frequency ranges.