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Product Detailed Parameters
- Description：IC REG LINEAR 3V 200MA 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)：5.5V
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.35V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：40 µA
- Current - Supply (Max)：-
- PSRR：80dB ~ 55dB (1kHz ~ 100kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- Grade：-
- Qualification：-
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Overview
The LD39020ADM30R is a high-accuracy linear voltage regulator from STMicroelectronics, providing a fixed 3.0 V output with a maximum current of 200 mA. It operates within an input voltage range of 1.5 V to 5.5 V and features a typical dropout voltage of 200 mV at full load. The device incorporates an internal soft-start circuit and logic-controlled shutdown, reducing quiescent current to below 0.1 µA in off mode. It utilizes a compact DFN4 1x1 mm package and is stabilized by a ceramic capacitor. The component supports operation across a temperature range of -40 °C to +125 °C.
Feature Summary
- High accuracy voltage regulation with tight output tolerance
- Ultra-low dropout performance for efficient battery operation
- Logic-controlled electronic shutdown for minimal power consumption
- Internal protection against overcurrent and thermal overload
Applications
- Low-power battery-operated equipment
- Smartphones and tablets
- Wearable devices
Procurement Notes
Verify the specific suffix 'ADM30R' against official manufacturer documentation to confirm the exact output voltage and tolerance grade. Ensure compatibility with the required PCB footprint and thermal management requirements for the DFN4 package. Confirm that the selected component meets all necessary regulatory standards for the intended deployment environment.
Selection Notes
Select this component when precise voltage regulation is critical for sensitive analog or digital loads. The high accuracy variant is suitable for applications requiring strict voltage stability without external trimming. Consider the low quiescent current for extended battery life in portable electronics where power efficiency is a primary design constraint.
Part Context
This part belongs to the LD39020 series of low-dropout regulators designed for space-constrained applications. The series offers various fixed output voltages and packages, including SOT23-5L. The LD39020ADM30R specifically targets high-precision needs within the standard 3.0 V rail common in modern portable systems.
Replacement Considerations
Direct substitutes include other LD39020 variants with identical pinouts and similar electrical characteristics, such as the LD39020DTPU30R, provided the lower accuracy tolerance is acceptable for the application.
