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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 50MA SOT89
- Series：-
- Mfr：Diotec Semiconductor
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.41V @ 10mA
- Current - Output：50mA
- Current - Quiescent (Iq)：1.8 µA
- Current - Supply (Max)：-
- PSRR：49dB (120Hz)
- Control Features：-
- Protection Features：-
- Operating Temperature：-40°C ~ 85°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：SOT-89
- Grade：-
- Qualification：-
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Overview
The LDI812C-3.3UA is a fixed linear voltage regulator manufactured by Diotec Semiconductor, designed for surface-mount applications in SOT-89 packages. It provides a nominal output voltage of 3.3V with a tolerance range of 3.234V to 3.366V. The device supports an output current of 50mA and operates with a maximum input voltage of 16V. Key electrical characteristics include a typical voltage drop of 0.41V and a quiescent current of 0.001mA. It functions within a temperature range up to 85°C.
Feature Summary
- Fixed output voltage regulation at 3.3V
- Low quiescent current consumption
- Surface-mount SOT-89 packaging
Applications
- Battery-powered portable devices
- General-purpose power supply circuits
- Embedded system voltage regulation
Procurement Notes
Verify the specific suffix UA against official Diotec documentation to confirm package type and thermal rating. Ensure compatibility with SOT-89 footprints during PCB layout. Confirm RoHS compliance status through the manufacturer's latest datasheet before integration into production environments.
Selection Notes
Select this component when a stable 3.3V rail is required with minimal current draw. The low quiescent current makes it suitable for energy-efficient designs. Verify that the load current does not exceed 50mA and that the input voltage remains within the 16V limit to ensure reliable operation.
Part Context
This part belongs to Diotec Semiconductor's LDI series of linear voltage regulators. These components are engineered for cost-effective power management solutions. The LDI812C-3.3UA specifically targets applications requiring compact form factors and stable voltage delivery in consumer electronics.
Replacement Considerations
Cross-reference with other 3.3V LDOs in SOT-89 packages from Diotec or other manufacturers. Ensure pinout compatibility and thermal performance match the original design requirements before substitution.
