TPS54386TPWPRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The TPS54386TPWPRQ1 is an automotive-grade dual non-synchronous buck converter featuring integrated high-side MOSFETs. It supports a wide input voltage range of 3.8 V to 28 V and delivers up to 3 A continuous output current per channel. The device utilizes SWIFT topology with external compensation, offering adjustable switching frequencies from 200 kHz to 2.2 MHz. It operates within a junction temperature range of -40°C to 150°C and is housed in a 20-pin HTSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel architecture providing independent regulation for two separate loads
• Integrated high-side MOSFETs eliminate the need for external power switches
• SWIFT converter topology simplifies design through optimized internal loop compensation
• Automotive qualification ensures reliability under harsh operating conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring multiple isolated power rails
• Distributed power architectures in vehicle control modules
• Industrial automation controllers needing robust dual-output regulation
• Medical equipment power supplies adhering to automotive-grade standards

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the Q1 suffix confirms AEC-Q100 automotive qualification status before integration. Ensure the HTSSOP-20 package variant matches your PCB footprint requirements. Confirm that external compensation components are selected according to the specific load transient requirements defined in the official datasheet. Validate thermal performance under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated outputs are required from a single controller. The non-synchronous design may be preferred for cost-sensitive applications or specific efficiency curves at light loads. Consider the external compensation requirement compared to internally compensated alternatives. Evaluate the 28 V input limit against your system's supply rail variations.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Texas Instruments' TPS54x38 family of high-voltage step-down converters. It shares the SWIFT platform technology with synchronous variants but differs by using non-synchronous rectification. The Q1 designation indicates it meets automotive quality standards, distinguishing it from standard commercial grade parts in the same series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other TPS54386 variants such as TPS54386PWPR or TPS54386PWP for non-automotive use. For synchronous alternatives, consider the TPS54388 series. Verify pin compatibility and thermal characteristics when swapping between non-synchronous and synchronous topologies.