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Product Detailed Parameters
- Description：IC REG LINEAR 5V 50MA SOT23-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.225V @ 50mA
- Current - Output：50mA
- Current - Quiescent (Iq)：150 µA
- Current - Supply (Max)：1.2 mA
- PSRR：45dB (1kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The LD2982BM50R is a fixed-output linear voltage regulator manufactured by STMicroelectronics. It provides a positive output of 5V with a maximum current capacity of 50mA. The device features an ultra-low dropout voltage, specified at a nominal value of 0.12V and a maximum of 0.225V. Quiescent current is rated at 150µA. It is housed in a SOT-23-5 surface-mount package and operates within a temperature range of -40°C to +125°C. The component is currently classified as obsolete.
Feature Summary
- Ultra-low dropout voltage performance for efficient power management
- Low quiescent current consumption suitable for battery-powered applications
- Integrated inhibit function capability
Applications
- Low noise power supply circuits
- Battery-operated electronic devices
- Portable instrumentation systems
Procurement Notes
This component is officially discontinued and no longer manufactured by STMicroelectronics. Verification of availability should focus on surplus or secondary market sources rather than direct procurement from the manufacturer. Buyers must confirm the authenticity and storage history of available units due to the obsolete status.
Selection Notes
Designers requiring this specific 5V/50mA specification should evaluate alternative components from the same family or compatible series. Considerations include verifying pin compatibility and ensuring that substitute regulators meet the required dropout voltage and thermal performance criteria for the target application environment.
Part Context
The LD2982 series comprises low-dropout linear regulators designed for low-noise applications. This specific model represents the 5V fixed output variant within the lineup. The series is characterized by its ability to maintain regulation with minimal input-to-output voltage difference, enhancing efficiency in portable electronics where power conservation is critical.
Replacement Considerations
Publicly confirmed substitutes include the LP2982AIM5-5.0/NOPB from Texas Instruments. Users should verify electrical parameter alignment and physical footprint compatibility before integrating replacement parts into existing designs.
