TPS55340QRTETQ1

Voltage Regulators - DC DC Switching Regulators Overview

The TPS55340QRTETQ1 is an integrated, automotive-grade, non-synchronous switching regulator featuring a built-in 5-A power switch and a 40-V rating. It supports Boost, SEPIC, and isolated Flyback topologies with an input voltage range of 2.9 V to 32 V and an adjustable output voltage from 2.9 V to 38 V. The device utilizes current-mode PWM control with a programmable switching frequency between 100 kHz and 1.2 MHz. It includes programmable soft-start, cycle-by-cycle overcurrent protection, and thermal shutdown. Housed in a 16-pin WQFN package, it operates within an extended temperature range of -55°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple standard converter topologies including Boost, SEPIC, and isolated Flyback configurations.
• Features an integrated 5-A power switch rated for 40-V operation to handle wide input ranges.
• Provides flexible switching frequency adjustment via external resistor or synchronization to an external clock signal.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring multi-rail power conversion
• Industrial power systems operating on 12V or 24V rails
• Thunderbolt ports and USB Type-C power delivery interfaces
• Power extension docks and portable computing devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the Q1 suffix confirms AEC-Q100 qualification status for automotive reliability standards. Confirm the RTET suffix corresponds to the correct 16-WQFN package variant and reel quantity specifications. Ensure the component meets specific environmental and functional requirements for your target application before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring high input voltage flexibility up to 32 V and robust current handling capabilities. It is suitable for applications needing isolation via Flyback topology or complex input-output relationships using SEPIC. Consider the thermal performance of the WQFN package and the need for external frequency synchronization in noise-sensitive environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the Texas Instruments TPS55340 family of wide-input-range DC-DC regulators. The Q1 designation indicates it is qualified for automotive applications under AEC-Q100 standards. It serves as a versatile solution for converting various input voltages into stable outputs for downstream logic and peripheral components in demanding electronic systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The TPS55340PWPR offers pin-to-pin compatibility but features a different package type. For direct replacement within the same automotive grade and package, verify availability of other TPS55340Q variants. No other direct substitutes are confirmed in public documentation.