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LA5744-HK-E is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG BUCK ADJ 3.1A 2205HK. Review the specifications below when checking this part for your BOM.
Voltage Regulators - DC DC Switching Regulators specifications for LA5744-HK-E
- Description：IC REG BUCK ADJ 3.1A 2205HK
- Series：-
- Mfr：onsemi
- Package：Tube,Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.5V
- Voltage - Input (Max)：28V
- Voltage - Output (Min/Fixed)：1.23V
- Voltage - Output (Max)：28V
- Current - Output：3.1A (Switch)
- Frequency - Switching：300kHz
- Synchronous Rectifier：No
- Operating Temperature：-30°C ~ 125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-5 Formed Leads
- Supplier Device Package：220-5HK
- Grade：-
- Qualification：-
Voltage Regulators - DC DC Switching Regulators datasheet and documents for LA5744-HK-E
Voltage Regulators - DC DC Switching Regulators Overview
The LA5744-HK-E is a positive adjustable step-down switching regulator IC manufactured by onsemi. It provides a maximum output current of 3.1A and supports output voltages up to 28V, with a minimum regulated output of 1.23V. The device operates within an input voltage range of 4.5V to 28V and features a switching frequency of 360kHz. It is housed in a TO-220-5 package with formed leads and is rated for operation at temperatures up to +125°C.
Voltage Regulators - DC DC Switching Regulators Feature Summary
- Positive adjustable output voltage regulation
- High current capability up to 3.1A
- Integrated switching regulator topology
Voltage Regulators - DC DC Switching Regulators Applications
- Industrial power supply systems
- Commercial equipment power distribution
- General-purpose DC-DC conversion modules
Voltage Regulators - DC DC Switching Regulators Procurement Notes
Verify the specific suffix 'HK' against the manufacturer's official documentation to confirm lead frame configuration and packaging details. Ensure the required output voltage range aligns with the 1.23V to 28V specification. Confirm thermal management requirements for the TO-220-5 package given the 3.1A current rating and high-temperature operation capabilities.
Voltage Regulators - DC DC Switching Regulators Selection Notes
Select this component when a robust, high-current buck converter is needed for industrial or commercial applications requiring adjustable output. The TO-220-5 package facilitates through-hole mounting and heat dissipation. Consider the 360kHz switching frequency for balancing efficiency and external component size compared to lower-frequency alternatives.
Voltage Regulators - DC DC Switching Regulators Part Context
This part belongs to the LA5744 series of separately-excited step-down switching regulators from onsemi. The series is designed for applications requiring reliable voltage regulation with moderate to high current outputs. The HK variant specifically denotes the pinout and package style used in this configuration.
Voltage Regulators - DC DC Switching Regulators Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Verify compatibility with existing board layouts and thermal designs if considering alternative regulators from other manufacturers.
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