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Product Detailed Parameters
- Description：IC REG BUCK 1.2V/3.3V DL 12TDFN
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：2
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.2V, 3.3V
- Voltage - Output (Max)：-
- Current - Output：1.2A
- Frequency - Switching：2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-TDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The AS1349-BTDT-3312 is a dual-output synchronous buck switching regulator IC manufactured by ams OSRAM. It provides fixed positive output voltages of 1.2V and 3.3V with maximum output currents of 1.2A and unspecified secondary limits respectively, housed in a 12-WFDFN exposed pad package. The device operates from an input voltage range up to 5.5V with a switching frequency of 2MHz. It features synchronous rectification for improved efficiency and is rated for operation within a temperature range of -40°C to +85°C.
Feature Summary
- Dual independent output channels providing simultaneous 1.2V and 3.3V regulation
- Synchronous rectification topology for enhanced power conversion efficiency
- Fixed output voltage configuration eliminating external resistor programming requirements
Applications
- Portable electronic devices requiring multiple stable voltage rails
- Embedded systems needing compact DC-DC power solutions
- Industrial control modules utilizing low-profile surface mount regulators
Procurement Notes
Verify the specific suffix and tape-and-reel packaging details against current distributor listings. Confirm component availability status as supply conditions may vary. Ensure compatibility with existing PCB footprint designs before ordering. Cross-reference manufacturer part numbers to avoid substitution errors during procurement processes.
Selection Notes
Select this component when dual isolated outputs are required from a single converter stage. Consider the 12-WFDFN package constraints for thermal management and board space. Evaluate the 2MHz switching frequency against electromagnetic interference requirements. Verify that the 1.2A primary output current meets the load demands of the target circuit design.
Part Context
This part belongs to the AS13xx series of power management integrated circuits designed for space-constrained applications. It complements other regulators in the portfolio by offering dual-channel capability within a small form factor. The series targets mobile and industrial sectors requiring efficient, high-density power distribution solutions.
Replacement Considerations
Check for direct pin-compatible alternatives within the same manufacturer family. Verify electrical parameter overlaps including input voltage ranges and output current capabilities. Ensure thermal performance characteristics match the original design specifications.
