MAX16922ATPO/V+

Overview

The MAX16922ATPO/V+ is a high-frequency, dual step-down DC-DC converter integrated with two low-dropout (LDO) regulators and an active-low reset controller. Designed for automotive applications, it operates within a 3.7V to 28V input voltage range and features a fixed 2.2MHz switching frequency. The device provides four output channels: two adjustable buck converters capable of delivering up to 1.2A each, and two LDOs providing 300mA and 600mA respectively. It is housed in a compact 5mm x 5mm TQFN-EP-20 package and is qualified to AEC-Q100 standards for operation between -40°C and +125°C.

Feature Summary

• Integrates dual synchronous buck converters and dual LDOs in a single compact package
• Includes an active-low reset controller with programmable delay and watchdog timer
• Optimized for automotive environments with AEC-Q100 qualification and wide temperature range
• Features fixed 2.2MHz switching frequency to minimize external component size

Applications

• Infotainment systems requiring multiple regulated power rails
• Instrument clusters and dashboard displays
• Telematics control units
• Body control modules

Procurement Notes

Verify the specific suffix 'ATPO' against official Analog Devices documentation to confirm pinout and thermal pad configuration. Confirm AEC-Q100 grade requirements for your specific automotive application. Check current availability status as automotive PMICs may have long lead times or discontinuation notices. Ensure compatibility with your system's reset timing requirements before finalizing procurement.

Selection Notes

Select this component when space constraints require integrating multiple power stages into a single solution. It is suitable for designs needing both high-current buck conversion and low-noise LDO outputs from a single source. Consider the 2.2MHz frequency trade-off between efficiency and passive component size. Verify that the input voltage range covers your system's transient conditions.

Part Context

This part belongs to the MAX16922 family of highly integrated power management ICs designed specifically for automotive electronics. It consolidates functions typically requiring separate discrete components, reducing board area and assembly complexity. The integration of reset logic alongside power regulation simplifies system supervision design for critical automotive loads.

Replacement Considerations

Check for MAX16922 variants with different packaging options such as ATPI or ATPH if the TQFN-EP-20 footprint is unsuitable. Verify if alternative packages like the thin QFN are available for height-constrained designs. Ensure any substitute maintains the same AEC-Q100 qualification level and electrical specifications.