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Product Detailed Parameters
- Description：IC REG BOOST ADJ 350MA 5TDFN
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tube
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.5V
- Voltage - Input (Max)：10V
- Voltage - Output (Min/Fixed)：0.615V
- Voltage - Output (Max)：35V
- Current - Output：350mA (Switch)
- Frequency - Switching：1.2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：5-WDFN Exposed Pad
- Supplier Device Package：5-TDFN (3x3)
- Grade：-
- Qualification：-
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Overview
The A8483EEK-T is a boost switching regulator IC manufactured by Allegro MicroSystems. It features an adjustable output voltage ranging from 0.615V to 35V with a single positive output. The device supports a maximum switch current of 350mA and operates at a fixed switching frequency of 1.2MHz. It accepts an input voltage between 2.5V and 10V. The component utilizes a 5-WDFN package with an exposed pad, specifically identified as 5-TDFN (3x3). It is designed for surface mount installation and functions within a temperature range of -40°C to 85°C TA.
Feature Summary
- Boost topology for step-up voltage conversion
- Adjustable output voltage capability
- Single output configuration
Applications
- Portable electronic devices requiring voltage boosting
- Battery-powered systems needing regulated higher voltage rails
- General purpose DC-DC power management in compact form factors
Procurement Notes
Verify the exact suffix 'T' against manufacturer documentation to confirm tape and reel packaging specifications. Confirm RoHS3 compliance status through official datasheets. Check for any Product Change Notices (PCN) regarding package or material updates. Ensure design-in compatibility with existing PCB footprints for the 5-TDFN package.
Selection Notes
Select this component when a compact boost converter is required for low-current applications up to 350mA. The 1.2MHz frequency allows for smaller external passive components compared to lower frequency alternatives. Ensure the input voltage source stays within the 2.5V to 10V range and that the load requirements do not exceed the specified switch current limit.
Part Context
This part belongs to the A8483 series of boost regulators from Allegro MicroSystems. It is distinct from linear regulators and synchronous buck converters. The non-synchronous design differentiates it from more complex synchronous counterparts. It serves as a dedicated power management solution for simple step-up applications in consumer electronics.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify if other variants within the A8483 family offer compatible pinouts or electrical characteristics if direct substitution is considered.
