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Product Detailed Parameters
- Description：IC REG BUCK BST 3V 450MA 10TDFN
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：1.8V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Current - Output：450mA (Switch)
- Frequency - Switching：-
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-WFDFN Exposed Pad
- Supplier Device Package：10-TDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The AS1331-BTDT-30 is a synchronous buck-boost switching regulator IC manufactured by ams OSRAM. It provides a fixed positive output voltage of 3V with a maximum switch current of 450mA. The device operates within an input voltage range up to 5.5V and supports both buck and boost topologies in a single component. It utilizes a 10-WFDFN exposed pad package for surface mount installation. The unit functions reliably across a temperature range of -40°C to +85°C, integrating synchronous rectification for improved efficiency in portable applications.
Feature Summary
- Integrates synchronous buck and boost converter topologies into a single monolithic IC
- Provides a fixed 3V positive output configuration with integrated synchronous rectification
- Designed for compact surface-mount assembly using a 10-WFDFN exposed pad package
Applications
- Portable consumer electronics requiring stable power from varying battery levels
- Battery-powered devices operating near the cell's discharge curve limits
- Compact embedded systems utilizing single-cell lithium-ion or lithium-polymer sources
Procurement Notes
Verify the specific suffix BTDT against official manufacturer documentation to confirm the fixed 3V output variant and 10-pin package configuration. Confirm availability status as distribution channels may list discontinued or limited stock items. Ensure compatibility with your PCB footprint requirements for the 10-WFDFN exposed pad design before finalizing orders.
Selection Notes
Select this component when a fixed 3V output is required from a variable input source ranging up to 5.5V. The 450mA switch current rating suits low-to-moderate power loads. Consider the 10-WFDFN package size constraints and thermal dissipation needs associated with the exposed pad design for proper heat management during operation.
Part Context
This part belongs to the AS1331 series of synchronous DC-DC converters from ams OSRAM. The series includes variants with different fixed output voltages and adjustable options. These regulators are engineered for space-constrained mobile and wearable applications where high efficiency and minimal external component count are critical design parameters.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided reference data. Consult the manufacturer's official cross-reference guides or distributor substitution tools for verified alternatives.
