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Product Detailed Parameters
- Description：LDI75L12UA
- Series：LDI75LxxUA
- Mfr：Diotec Semiconductor
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.055V @ 1mA
- Current - Output：150mA
- 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 LDI75L12UA is a fixed linear voltage regulator manufactured by Diotec Semiconductor, housed in an SOT-89 surface-mount package. It provides a nominal output voltage of 12V with a tolerance of ±2%. The device supports a maximum input voltage of 40V and delivers a continuous output current of 150mA. It operates within a temperature range of -40°C to +85°C and features a low quiescent current of 0.005mA (5µA). This component is classified as a Low Dropout (LDO) regulator suitable for power management applications requiring stable fixed voltage regulation.
Feature Summary
- Fixed output voltage with high precision tolerance
- High input voltage capability for wide operating ranges
- Low quiescent current consumption for efficiency
- Compact surface-mount packaging for space-constrained designs
Applications
- Battery-powered portable electronic devices
- General-purpose power supply circuits
- Embedded system voltage regulation
- Consumer electronics power management
Procurement Notes
Verify the specific manufacturer part number against official Diotec Semiconductor documentation to ensure authenticity. Confirm that the SOT-89 package type matches the design requirements. Check for RoHS compliance status as indicated in the product specifications. Ensure that the thermal characteristics and maximum power dissipation limits are compatible with the intended application environment before finalizing procurement.
Selection Notes
Select this component when a stable 12V output is required from higher input voltages up to 40V. The low static current makes it suitable for battery-operated systems where standby power consumption is critical. The SOT-89 package offers a balance between thermal performance and board space efficiency compared to smaller packages. Ensure the load current does not exceed the 150mA rating under all operating conditions.
Part Context
The LDI75L12UA belongs to the LDI75 series of linear voltage regulators from Diotec Semiconductor. This series includes various fixed output voltage options such as 3.3V and 5.0V variants. The components are designed for general-purpose use in power management integrated circuits (PMICs). The series emphasizes low dropout performance and high input voltage tolerance, catering to diverse industrial and consumer electronics needs.
Replacement Considerations
Cross-reference with other LDI75 series parts for different voltage outputs if system requirements change. Verify pinout compatibility when substituting with similar SOT-89 linear regulators from other manufacturers. Ensure thermal dissipation capabilities match or exceed the original component's specifications.
