AS1346-BTDT3318

Overview

The AS1346-BTDT3318 is a dual-output synchronous buck switching regulator manufactured by ams OSRAM. It provides fixed output voltages of 1.8V and 3.3V with maximum output currents of 950mA and 500mA, respectively. The device operates from an input voltage range up to 5.5V and integrates a 2MHz switching frequency. Packaged in a 12-WDFN exposed pad format, it supports positive fixed outputs and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual independent regulated outputs for simultaneous power delivery
• Integrated synchronous rectification for improved efficiency
• Fixed voltage configuration eliminating external feedback components

Applications

• Portable electronic devices requiring multiple voltage rails
• Embedded systems with mixed logic and peripheral power needs
• Battery-powered consumer electronics

Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm package integrity and pin alignment against the official datasheet before integration. Ensure supply chain documentation matches the specific suffix requirements for the 12-TDFN variant.

Selection Notes

Select this component when dual fixed rails are required without adjustable regulation complexity. Compare current capabilities against load demands to ensure the 950mA and 500mA limits are not exceeded. Evaluate thermal performance within the WDFN package constraints for the target application environment.

Part Context

This model belongs to the AS13xx series of DC-DC switching regulators designed for space-constrained applications. It shares architectural similarities with other dual-output variants in the family but is distinguished by its specific 1.8V/3.3V fixed output configuration and 12-pin footprint.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult manufacturer obsolescence notices for potential end-of-life alternatives.