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AN34040A
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Product Detailed Parameters
- Description：IC REG BCK 3.3/5/9V TRPL TO220-7
- Series：-
- Mfr：Panasonic Electronic Components
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：3
- Voltage - Input (Min)：5.5V
- Voltage - Input (Max)：14V
- Voltage - Output (Min/Fixed)：3.3V, 5V, 9V
- Voltage - Output (Max)：-
- Current - Output：-
- Frequency - Switching：-
- Synchronous Rectifier：No
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Through Hole
- Package / Case：TO-220-7
- Supplier Device Package：TO-220-7
- Grade：-
- Qualification：-
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Overview
The Panasonic AN34040A is a triple-output buck switching regulator IC designed for step-down voltage conversion. It provides fixed positive output voltages of 3.3V, 5V, and 9V from a single input source. The device operates with a minimum input voltage of 5.5V and utilizes a TO-220-7 package. This integrated circuit serves as a power management solution for applications requiring multiple regulated DC rails derived from a higher voltage supply.
Feature Summary
- Triple-output configuration delivering 3.3V, 5V, and 9V simultaneously
- Buck topology for efficient step-down voltage regulation
- Fixed output voltage settings eliminating external resistor programming
Applications
- Multi-rail embedded systems requiring 3.3V, 5V, and 9V supplies
- Industrial control units needing isolated or shared ground power distribution
- Communication equipment powering logic and interface circuits
Procurement Notes
Verify component authenticity through authorized Panasonic distributors due to obsolete status. Confirm package integrity and pin alignment against the TO-220-7 specification. Request batch traceability documentation to ensure compliance with historical manufacturing standards. Validate electrical parameters against original datasheet requirements before integration into final assemblies.
Selection Notes
Select this component when three specific fixed voltages are required without external feedback networks. Ensure input voltage exceeds 5.5V to maintain regulation stability. Consider thermal dissipation capabilities inherent to the TO-220-7 package for high-current applications. Verify compatibility with existing board layout constraints regarding leaded package dimensions.
Part Context
This part belongs to Panasonic's legacy PMIC voltage regulator family. It represents a dedicated solution for multi-voltage generation in industrial and commercial electronics. The component was designed to simplify power architecture by integrating multiple regulators into a single package, reducing board space and component count compared to discrete solutions.
Replacement Considerations
No direct public substitute part numbers are confirmed for this obsolete component. Evaluate generic triple-output buck converters with matching voltage specifications and TO-220-7 packaging. Perform thorough electrical characterization to ensure functional equivalence before substitution.
