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Product Detailed Parameters
- Description：IC REG BUCK ADJ 8SOIC
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：8V
- Voltage - Input (Max)：50V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：24V
- Current - Output：-
- Frequency - Switching：-
- Synchronous Rectifier：No
- Operating Temperature：-20°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SOIC-EP
- Grade：-
- Qualification：-
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Overview
The A8499SLJ-T is a high-voltage step-down regulator from Allegro MicroSystems. It supports an input voltage range of 8V to 50V and provides an adjustable output voltage between 1.2V and 24V. The device delivers a maximum output current of 1.5A. It operates with a switching frequency of 123 kHz and utilizes a buck topology. The component is housed in an 8-pin SOIC package and functions within a temperature range of -20°C to 85°C.
Feature Summary
- High-voltage operation capability for wide input ranges
- Adjustable output voltage control
- Integrated buck converter topology
Applications
- Industrial power supply systems
- Automotive electronics
- General-purpose DC-DC conversion
Procurement Notes
Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the SOIC-8 package type matches your PCB footprint requirements. Ensure the input voltage does not exceed the 50V maximum rating during system design validation.
Selection Notes
Select this component for applications requiring high-voltage input handling up to 50V. It is suitable where an adjustable output between 1.2V and 24V is needed at 1.5A. Consider the 123 kHz switching frequency for EMI and filter component sizing relative to other regulators in the series.
Part Context
This part belongs to the A8499 series of high-voltage step-down regulators by Allegro MicroSystems. It shares functional similarities with the A8498 but offers distinct electrical characteristics regarding input voltage tolerance and output current capabilities within the same package family.
Replacement Considerations
The A8498SLJTR-T is a related component in the same product line. Verify if the 3A output current and fixed 24V output of the A8498 meet your specific load requirements, as it differs from the adjustable 1.5A nature of the A8499.
