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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 200MA SOT23-5
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：18V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：12V
- Voltage Dropout (Max)：0.35V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：90 µA
- Current - Supply (Max)：100 µA
- PSRR：88dB ~ 48dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- 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 LDK320M-R is a low-dropout linear voltage regulator manufactured by STMicroelectronics, designed for applications requiring high accuracy and power supply rejection ratio. It delivers a maximum output current of 200 mA with an operating input voltage range spanning from 2.5 V to 18 V. The device features a typical dropout voltage of 100 mV at a 100 mA load and maintains a low quiescent current of 60 μA, which reduces to 1 μA in shutdown mode. It offers high PSRR of 88 dB at 120 Hz and low output noise. The regulator includes logic-controlled electronic shutdown, short-circuit current limiting, thermal protection, and safe operating area safeguards.
Feature Summary
- Logic-controlled electronic shutdown enables deep sleep mode with minimal current consumption
- Integrated protections include short-circuit current limiting, thermal shutdown, and safe operating area limits
- Compatible with ceramic output capacitors for stable operation across wide load conditions
Applications
- Digital signal controllers
- Television systems
- Blu-ray and DVD players
- Personal computers
- Industrial equipment
Procurement Notes
Verify the specific suffix 'M' against official documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with required output voltage tolerance and temperature range specifications before finalizing procurement decisions.
Selection Notes
Select this component when designing low-power battery-operated systems requiring precise voltage regulation. Consider the SOT23-5L or SOT-89 package availability based on board space constraints and thermal dissipation requirements for the target application environment.
Part Context
This part belongs to the LDK320 series of low-dropout regulators from STMicroelectronics. The series is engineered for high performance in portable electronics, offering a balance of low quiescent current and high power supply rejection ratio suitable for sensitive analog and digital circuits.
Replacement Considerations
Consult official STMicroelectronics documentation for verified substitute part numbers within the LDK320 family that match specific output voltage and package requirements.
