ADUM3070ARQZ

Overview

The ADUM3070ARQZ is an isolated switching voltage regulator featuring integrated feedback, manufactured by Analog Devices Inc. It operates within a 3V to 5.5V input range and delivers adjustable output voltages from 3.3V to 24V. The device supports output currents of up to 350mA or 500mA depending on configuration. It utilizes a push-pull topology with a switch frequency ranging from 200kHz to 1MHz. The component provides galvanic isolation and includes shutdown functionality. It is housed in a 16-SSOP package and functions reliably across an operating temperature range of -40°C to +105°C.

Feature Summary

• Integrated digital feedback loop for precise regulation without external optocouplers
• Galvanic isolation capability for safe separation of circuit grounds
• Adjustable output voltage range supporting various system requirements
• Built-in shutdown control for power management optimization

Applications

• Industrial automation systems requiring isolated power supplies
• Medical equipment needing compliant isolated DC-DC conversion
• Test and measurement instruments utilizing isolated power rails
• Communication infrastructure providing isolated bias voltages

Procurement Notes

Verify the specific suffix and tape/reel specifications against the manufacturer's current datasheet before ordering. Confirm that the QSOP-16 package dimensions match the target PCB footprint. Ensure the selected variant meets the required thermal and electrical ratings for the intended application environment. Cross-reference the part number with official distributor catalogs to confirm availability and authenticity.

Selection Notes

Select this component when high-voltage isolation is required alongside compact size constraints. Consider the adjustable output range and current capabilities relative to load demands. Evaluate the thermal performance within the specified operating temperature limits. Compare the integrated feedback feature against solutions requiring external isolation components to assess complexity and cost benefits.

Part Context

This part belongs to the ADuM3070 series of isolated switching regulators. It represents Analog Devices' iCoupler technology integration into power management. The series focuses on combining magnetic coupling isolation with switching regulator functions. This approach reduces the bill of materials by eliminating discrete isolation barriers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.