AS1333-BWLT

Overview

The AS1333-BWLT is a step-down switching regulator IC manufactured by ams OSRAM. It provides a fixed positive output voltage of 3.09 V with a maximum output current of 650 mA. The device operates within an input voltage range of 2.7 V to 5.5 V and features a switching frequency of 1 MHz. It is housed in an 8-WLCSP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrated synchronous buck converter topology for high efficiency
• Fixed output voltage configuration eliminates external feedback resistors
• Compact wafer-level chip scale packaging for space-constrained designs

Applications

• Portable consumer electronics power management
• Battery-powered mobile devices
• Embedded systems requiring stable low-voltage rails

Procurement Notes

Verify component authenticity through authorized channels due to obsolete status. Confirm package integrity and pin alignment against the official datasheet specifications. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly. Cross-reference ordering information with manufacturer documentation to avoid substitution errors.

Selection Notes

Select this component when a fixed 3.09 V rail is required from a 5 V source. Consider the 650 mA current limit for load requirements. Evaluate the WLCSP footprint compatibility during PCB layout. Verify thermal performance under maximum load conditions within the specified ambient temperature range.

Part Context

This part belongs to the AS13xx series of DC-DC converters from ams OSRAM. These components are designed for portable applications requiring efficient power conversion in minimal space. The series typically integrates power switches and control logic for simplified design implementation.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's obsolescence notice or technical support for recommended alternatives.