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Product Detailed Parameters
- Description：IC REG LINEAR 2.85V 50MA SOT23-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：2.85V
- 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 LD2982AM285R is a fixed-output linear voltage regulator from STMicroelectronics, providing a stable 2.85V output with a maximum load current of 50mA. It features an ultra-low dropout voltage of 0.225V at full load and operates within an input voltage range up to 16V. The device is housed in a compact SOT-23-5 surface-mount package, designed for low-noise applications requiring high power supply rejection.
Feature Summary
- Ultra-low dropout voltage ensures efficient operation even with minimal input-to-output differential.
- Low quiescent current minimizes power consumption during standby or light-load conditions.
- High power supply rejection ratio (PSRR) effectively suppresses noise on the input line.
Applications
- Low-noise analog circuit power supplies
- Battery-powered portable devices
- RF front-end biasing circuits
Procurement Notes
Verify the exact suffix 'AM285R' to confirm the 2.85V fixed output and SOT-23-5 package. Check RoHS compliance status as manufacturing practices may vary by production batch. Confirm availability as this specific part number may be obsolete or subject to limited stock depending on the distributor.
Selection Notes
Select this component when a precise 2.85V rail is required with minimal voltage drop across the regulator. Ensure the application load does not exceed 50mA. Consider thermal dissipation if the input voltage significantly exceeds 2.85V under maximum load conditions.
Part Context
This part belongs to the LD2982 series of low-dropout linear regulators. These devices are engineered for stability with low-ESR capacitors, making them suitable for space-constrained designs where standard LDOs might require larger output filtering components.
Replacement Considerations
Direct substitutes include other parts from the LD2982 family with different output voltages, such as LD2982AMxxR variants. Cross-reference with other manufacturers offering 2.85V/50mA LDOs in SOT-23-5 packages, ensuring pin compatibility and electrical specifications match.
