AS1335-BTDT-100

Overview

The AS1335-BTDT-100 is a synchronous buck switching regulator IC manufactured by ams-OSRAM. It provides a fixed positive output voltage of 1V with a maximum output current capability of 1.5A. The device operates within an input voltage range suitable for single-cell lithium-ion battery applications and integrates a 2MHz switching frequency to allow for compact external component selection. It features an 85°C ambient temperature operating range and is housed in a 10-WFDFN exposed pad package designed for surface mount installation.

Feature Summary

• Synchronous rectification architecture for improved efficiency
• Fixed 1V output configuration optimized for low-voltage digital loads
• High-frequency 2MHz operation enabling miniaturized passive components
• Integrated protection mechanisms for reliable system operation

Applications

• Portable consumer electronics powered by single-cell lithium-ion batteries
• Low-voltage core supply for microprocessors and FPGAs
• Battery-operated handheld devices requiring efficient power conversion

Procurement Notes

Verify the specific manufacturer part number against official ams-OSRAM documentation to confirm the fixed 1V output variant. Ensure the 10-WFDFN package footprint matches your PCB layout requirements. Confirm that the 1.5A current rating aligns with your system's peak load demands. Check for any specific ordering suffixes or revisions that may affect pin compatibility or thermal performance.

Selection Notes

Select this component when a fixed 1V rail is required from a single-cell lithium source. The 1.5A output current supports moderate-power digital logic. The 2MHz switching frequency is critical if board space constraints limit inductor size. Verify that the thermal dissipation capabilities of the 10-WFDFN package are sufficient for the expected ambient conditions and load profile.

Part Context

This part belongs to the AS133x series of synchronous buck regulators from ams-OSRAM, designed for portable applications. The series typically offers various output voltages and current ratings. The BTDT suffix indicates the specific tape-and-reel packaging format. This family focuses on high efficiency and small solution size for battery-powered devices.

Replacement Considerations

Direct substitutes must match the 1V fixed output, 1.5A current rating, and 10-WFDFN package. Verify pinout compatibility before substitution. Other ams-OSRAM parts in the AS133x series with different voltage outputs or current limits are not direct replacements without circuit redesign.