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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 100MA SOT89
- Series：-
- Mfr：Diotec Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：24V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.055V @ 1mA
- Current - Output：100mA
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：-
- 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 LDI75L3.3UA is a low-dropout (LDO) voltage regulator manufactured by Diotec Semiconductor, designed for surface-mount applications in the SOT-89 package. It provides a fixed positive output voltage of 3.3 V with a maximum output current capability of 100 mA. The device supports an input voltage up to 24 V and operates within a temperature range of -40 °C to +85 °C. Key electrical specifications include a typical dropout voltage of 60 mV, a quiescent current of 3 µA, and a line regulation of 0.2 %/V. The unit weight is 170 mg.
Feature Summary
- Provides stable fixed voltage regulation with minimal power loss under load
- Designed for compact surface-mount integration in space-constrained circuits
- Maintains performance across wide industrial temperature ranges
Applications
- Battery-powered portable electronic devices requiring efficient power management
- Embedded systems utilizing microcontrollers or digital signal processors
- Sensor interfaces needing clean, regulated supply voltages
Procurement Notes
Verify component authenticity through official Diotec Semiconductor channels or authorized distributors. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure storage conditions meet humidity requirements to prevent package degradation. Cross-reference ordering suffixes with manufacturer documentation to guarantee exact pinout and electrical characteristics match design specifications.
Selection Notes
Select this regulator when a 3.3 V rail is required from higher input voltages up to 24 V. The low quiescent current makes it suitable for battery-operated equipment where standby power consumption must be minimized. Verify that the expected load current does not exceed 100 mA and that thermal dissipation in the SOT-89 package remains within safe limits for the specific ambient temperature conditions.
Part Context
This component belongs to the LDI75L series of low-dropout regulators from Diotec Semiconductor. The series focuses on providing reliable linear regulation for general-purpose power management tasks. The LDI75L3.3UA specifically targets applications requiring a precise 3.3 V output with high efficiency and low noise characteristics in a compact footprint.
Replacement Considerations
Consult Diotec Semiconductor datasheets for direct pin-compatible alternatives within the LDI75L family offering different output voltages or current ratings. Verify electrical parameters such as dropout voltage and quiescent current against original design requirements before substituting.
