ADP1073AN-3.3

Overview

The ADP1073AN-3.3 is a micropower DC-to-DC converter manufactured by Analog Devices Inc., belonging to the ADP1073 family of step-up/step-down switching regulators. It operates from an input supply voltage ranging from 1.0 V to 30 V, enabling use with single-cell battery sources. The device features an internal 1 A power switch and supports both step-up and step-down modes. It provides a fixed 3.3 V output voltage and includes a low battery detector and user-adjustable current limit. Packaged in an 8-Lead DIP configuration, it requires very few external components for implementation.

Feature Summary

• Operates at supply voltages from 1.0 V to 30 V
• Works in step-up or step-down mode
• Includes on-chip user-adjustable current limit
• Features low battery detector

Applications

• Single-cell to 5 V converters
• Laptop and palmtop computers
• Battery backup supplies
• Cellular telephones
• Portable instruments

Procurement Notes

Verify the specific suffix 'AN-3.3' against official Analog Devices documentation to confirm package type (DIP) and fixed output voltage (3.3 V). Ensure compatibility with required input voltage ranges and load currents. Check for obsolescence notices or lifecycle status updates directly from the manufacturer before procurement planning.

Selection Notes

Select this component when a wide input voltage range (1.0 V to 30 V) and bidirectional conversion capability are required. It is suitable for applications needing a fixed 3.3 V output from varying source voltages. Consider the 8-Lead DIP package for through-hole mounting requirements. Evaluate the internal 1 A switch capacity against peak load demands.

Part Context

The ADP1073 series comprises micropower DC-to-DC converters designed for portable electronics. The ADP1073AN-3.3 specifically denotes the 8-Lead DIP package variant with a fixed 3.3 V output. This family allows operation from single-cell batteries up to higher voltage rails, making it versatile for mixed-voltage systems requiring efficient power management.

Replacement Considerations

Consult Analog Devices for direct replacements. Verify pinout and electrical specifications match if considering alternative manufacturers.