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Product Detailed Parameters
- Description：IC REG LINEAR 1.1V 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)：1.1V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.3V @ 200mA
- Current - Output：200mA
- Current - Quiescent (Iq)：60 µA
- Current - Supply (Max)：100 µA
- PSRR：55dB (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 LDK120M11R is a positive low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 1.1 V with a maximum output current capability of 0.2 A. The device operates within an input voltage range of 1.9 V to 5.5 V and features a typical dropout voltage of 0.3 V at full load. It exhibits high accuracy with ±2% output voltage tolerance at 25 °C. Key electrical parameters include a line regulation of 0.05%/V and load regulation of 0.006%/mA. The quiescent current is typically 0.06 mA, and it supports operation in temperatures from -40 °C to +125 °C.
Feature Summary
- Fixed 1.1 V output voltage with ±2% accuracy
- Low quiescent current for battery efficiency
- Integrated short-circuit and thermal protection
- Compatible with ceramic output capacitors
Applications
- Battery-powered portable electronics
- Low-noise analog circuit power supplies
- Embedded system voltage regulation
Procurement Notes
Verify the specific suffix 'M11R' against the manufacturer's official datasheet to confirm the fixed 1.1 V output voltage and SOT-23-5 package configuration. Ensure compatibility with required input voltage ranges and thermal management requirements for the target application environment before finalizing procurement.
Selection Notes
Select this component when a stable 1.1 V rail is required with minimal noise and low standby consumption. It is suitable for designs where input voltages vary between 1.9 V and 5.5 V. Consider the thermal resistance characteristics and ensure adequate PCB copper area for heat dissipation under maximum load conditions.
Part Context
This part belongs to the LDK120 series of low-dropout regulators designed for low-power applications. The series offers various fixed output voltages and adjustable versions, packaged in compact formats like SOT-23-5L and DFN6. It targets IoT and wearable devices requiring efficient power management.
Replacement Considerations
Check for direct pin-compatible alternatives within the same LDK120 family offering different fixed voltages or adjustable outputs. Verify that substitute parts maintain similar quiescent current levels and dropout characteristics for equivalent performance.
