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Product Detailed Parameters
- Description：IC REG LINEAR 3.6V 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)：13.2V
- Voltage - Output (Min/Fixed)：3.6V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.35V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：90 µA
- Current - Supply (Max)：100 µA
- PSRR：55dB ~ 50dB (120Hz ~ 10kHz)
- 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 LDK220M36R is a fixed-output linear low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 3.6V with a maximum continuous output current of 200mA. The device operates within an input voltage range from 2.5V to a maximum of 13.2V. Key electrical specifications include a maximum dropout voltage of 0.35V at full load, a typical quiescent current of 90µA, and a maximum supply current of 100µA. Power dissipation is rated at 500mW. The unit features high power supply rejection ratios of 55dB at 120Hz and 50dB at 120kHz. It includes integrated protection against overcurrent and thermal overload.
Feature Summary
- Provides stable fixed output voltage regulation suitable for sensitive analog and digital circuits
- Integrates comprehensive protection mechanisms including overcurrent limiting and thermal shutdown
- Features enable control functionality for efficient power management in battery-operated systems
Applications
- Portable consumer electronics requiring stable low-noise power supplies
- Battery-powered devices utilizing low quiescent current operation
- Embedded systems needing regulated voltage rails from varying input sources
Procurement Notes
Verify the specific suffix M36R confirms the 3.6V fixed output variant. Confirm SOT-23-5 packaging compatibility with your PCB footprint. Ensure input voltage does not exceed 13.2V under all operating conditions. Check thermal requirements for 500mW dissipation in your enclosure design. Validate RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when a precise 3.6V rail is required with minimal static power consumption. The low dropout characteristic allows operation close to the output voltage, maximizing efficiency. Consider the 200mA current limit for load requirements. The SOT-23-5 package offers a compact solution for space-constrained designs compared to larger regulator packages.
Part Context
This part belongs to the LDK220 series of low-power LDO regulators designed for handheld and portable applications. The series emphasizes low noise and low quiescent current to extend battery life. Other variants in the family offer different fixed output voltages or adjustable configurations, sharing similar protection features and package options.
Replacement Considerations
Direct substitutes must match the 3.6V output, 200mA current rating, and SOT-23-5 package. Verify pinout compatibility before substitution. Alternative parts may require evaluation of PSRR and dropout voltage differences.
