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Product Detailed Parameters
- Description：IC REG LINEAR 3.2V 300MA 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)：3.2V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.4V @ 300mA
- Current - Output：300mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：120 µA
- PSRR：55dB (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：Automotive
- Qualification：AEC-Q100
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Overview
The LDK130M32R is a low-dropout linear voltage regulator from STMicroelectronics, designed for automotive applications. It provides a maximum output current of 300 mA with an input voltage range of 1.9 V to 5.5 V. The device features a typical dropout voltage of 100 mV and very low quiescent current. It includes logic-controlled shutdown functionality, reducing consumption below 1 μA. The component is stabilized by ceramic capacitors and offers short-circuit constant current limiting and thermal protection.
Feature Summary
- AEC-Q100 qualified for automotive grade 1 reliability
- Logic-controlled electronic shutdown for ultra-low power consumption
- Compatible with small ceramic output capacitors
- Integrated short-circuit and thermal protection mechanisms
Applications
- Low-power battery-powered automotive systems
- Automotive sensor supply regulation
- Infotainment subsystem power management
Procurement Notes
Verify the specific suffix M32R against official STMicroelectronics documentation to confirm package type and tape-and-reel specifications. Ensure the requested fixed output voltage matches the available 100 mV step range between 0.8 V and 3.5 V. Confirm AEC-Q100 Grade 1 qualification requirements align with your target automotive application standards before finalizing procurement orders.
Selection Notes
Select this component when designing for automotive environments requiring high reliability and low noise. It is suitable for applications needing stable regulation from lithium-ion or similar battery sources within the specified input range. Consider its low quiescent current for extended battery life in standby modes enabled by the logic control function.
Part Context
This part belongs to the LDK130 family of low-dropout regulators manufactured by STMicroelectronics. The family is characterized by low noise and low quiescent current, targeting automotive and industrial sectors. Variants within the family differ primarily in output voltage settings and packaging options such as SOT23-5L, SOT323-5L, and DFN6.
Replacement Considerations
Consult official STMicroelectronics substitution guides for verified equivalents. Generic LDO replacements may not meet AEC-Q100 Grade 1 automotive qualification or specific noise performance requirements.
