AS1312-BTDM-33

Overview

The AS1312-BTDM-33 is a synchronous step-down switching regulator manufactured by Austria Micro. It operates within an input voltage range of 2.5V to 5.5V and provides a fixed output voltage of 3.3V. The device supports a maximum switch current of 400mA and functions across an ambient temperature range of -40°C to +85°C. It utilizes a compact 8-TDFN package for efficient space-constrained designs.

Feature Summary

• Fixed 3.3V output capability
• Compact 8-TDFN surface-mount packaging
• Wide operating temperature range

Applications

• Portable electronic devices requiring stable 3.3V power
• Battery-powered systems with 2.5V to 5.5V input sources
• Embedded circuits needing compact DC-DC conversion

Procurement Notes

Verify the manufacturer designation as Austria Micro or AMS, as naming conventions may vary in documentation. Confirm the fixed 3.3V output specification matches system requirements. Ensure the 8-TDFN package footprint aligns with PCB layout constraints. Check for RoHS compliance status if required by project specifications.

Selection Notes

Select this component when a fixed 3.3V output is required from a low-voltage input source between 2.5V and 5.5V. The 400mA current limit suits low-power applications. The TDFN package is appropriate for space-sensitive designs. Consider thermal performance within the -40°C to 85°C range for environmental suitability.

Part Context

This part belongs to the Austria Micro PMIC family, specifically DC-DC switching regulators. It serves as a power management solution for converting higher battery voltages down to regulated logic levels. The BTDM suffix typically indicates specific packaging and tape-and-reel configuration details.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and electrical parameters before considering alternative components from other manufacturers.