O3852AQDCARQ1

Overview

The O3852AQDCARQ1 is a SafeTI-ISO26262 ASIL-D qualified multi-rail power supply integrated circuit manufactured by Texas Instruments. It operates within an input voltage range of 2.3 V to 40 V and provides regulated output voltages between 3.3 V and 6 V. The device supports an output current of 1 A and functions reliably across an extended temperature range from -40°C to +125°C. Packaged in an HTSSOP-48 format, it is designed for automotive applications requiring high reliability and safety compliance.

Feature Summary

• SafeTI-ISO26262 ASIL-D qualification for functional safety
• Multi-rail power supply architecture
• Wide input voltage capability up to 40 V

Applications

• Automotive systems requiring ISO26262 ASIL-D compliance
• Multi-rail power distribution networks
• Safety-critical electronic control units

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the component meets the required ASIL-D safety integrity level for your application. Check for any recent Product Change Notifications (PCN) or lifecycle status updates directly from Texas Instruments documentation to ensure long-term availability and design continuity.

Selection Notes

Select this component when an ASIL-D certified power solution is mandatory for automotive designs. Ensure the system input voltage remains within the 2.3 V to 40 V operational window. Verify that the HTSSOP-48 package dimensions fit the PCB layout constraints. Consider thermal management requirements given the 1 A output capability and operating temperature range.

Part Context

This part belongs to the TPS653852A series of specialized PMICs from Texas Instruments. It is specifically engineered for automotive environments where functional safety standards are critical. The device integrates multiple regulators into a single compact package to simplify board space and reduce component count in complex power architectures.

Replacement Considerations

Consult the official Texas Instruments product selection guide for verified pin-to-pin or functionally equivalent alternatives within the same family. Cross-reference with other ASIL-D qualified PMICs if form factor changes are permissible.