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Product Detailed Parameters
- Description：IC REG LINEAR 1V 200MA SOT-323-5
- 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)：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：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SOT-323-5
- Grade：-
- Qualification：-
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Overview
The LDK120C10R is a fixed-output low dropout (LDO) linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage of 1.0 V with a maximum continuous output current of 200 mA. The device operates from an input supply voltage range of 1.9 V to 5.5 V and features a typical dropout voltage of 200 mV at full load. It incorporates short-circuit constant current limiting and thermal protection mechanisms. The regulator is housed in a surface-mount SOT-323-5 package and is rated for operation over an extended temperature range of -40°C to +125°C.
Feature Summary
- Ultra-low quiescent current consumption for efficient battery-powered applications
- Very low noise performance suitable for sensitive analog and RF circuits
- Integrated short-circuit current limiting and thermal shutdown protection
Applications
- Portable consumer electronics requiring stable low-voltage rails
- Battery-operated devices prioritizing power efficiency
- RF modules and sensors needing low-noise power supplies
Procurement Notes
Verify the specific suffix '10R' confirms the 1.0 V fixed output voltage, as the LDK120 series includes multiple voltage options. Ensure the SOT-323-5 package matches your PCB footprint requirements. Confirm RoHS compliance status if required by your manufacturing standards. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.
Selection Notes
Select this component when a fixed 1.0 V rail is required with minimal static current draw. The SOT-323-5 package offers a compact solution for space-constrained designs. Consider the input voltage headroom relative to the dropout characteristics. This regulator is appropriate for applications where noise sensitivity exceeds the need for adjustable output flexibility.
Part Context
The LDK120C10R belongs to the LDK120 family of low-dropout regulators designed for high efficiency and low noise. This family shares common protection features and package options but varies in output voltage configurations. The C10R designation specifically identifies the 1.0 V fixed output variant within the broader LDK120 product line offered by STMicroelectronics.
Replacement Considerations
Direct substitutes include other LDK120 variants with different fixed output voltages if the voltage level can be adjusted in the design. Verify pinout compatibility before replacing with similar LDOs from other manufacturers.
