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Product Detailed Parameters
- Description：IC REG LINEAR 1.2V 300MA 6-DFN
- 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)：1.2V
- 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
- Mounting Type：Surface Mount
- Package / Case：6-XFDFN
- Supplier Device Package：6-DFN (1.2x1.3)
- Grade：-
- Qualification：-
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Overview
The LDK130PU12R is a fixed-output low-dropout linear regulator manufactured by STMicroelectronics. It provides a positive output voltage of 1.2 V with a maximum output current of 300 mA. The device operates within an input voltage range of 1.9 V to 5.5 V and features a maximum dropout voltage of 0.4 V at full load. Key electrical parameters include a typical quiescent current of 60 µA, line regulation of 0.05%/V, and load regulation of 0.006%/mA. It is housed in a 6-DFN (1.2x1.3 mm) surface-mount package.
Feature Summary
- Ultra-low noise performance suitable for sensitive analog circuits
- Logic-controlled enable function for power management
- Internal short-circuit current limiting and thermal protection
- Stable operation with small ceramic output capacitors
Applications
- Low-power battery-powered electronic devices
- RF and sensor power supply conditioning
- Portable consumer electronics requiring stable voltage rails
- Automotive interior modules and body functions
Procurement Notes
Verify the specific suffix 'PU' confirms the 6-DFN package variant distinct from SOT23-5L or SOT323-5L options. Confirm AEC-Q100 automotive qualification status if required for your application, as this may vary by package type. Ensure compatibility with RoHS3 and REACH regulations for your region. Check datasheet for moisture sensitivity level handling requirements during assembly.
Selection Notes
Select this component when a fixed 1.2 V rail is needed with minimal footprint. The 6-DFN package offers superior thermal dissipation compared to smaller packages. Consider the 60 µA quiescent current for battery life optimization. Verify that the input voltage remains above 1.9 V to ensure proper regulation. Evaluate PCB layout constraints for the 1.2x1.3 mm footprint.
Part Context
Part of the LDK130 family of ultra-low dropout regulators designed for low-noise applications. The family includes adjustable versions and other fixed voltages in various packages like SOT23-5L and SOT323-5L. This specific part targets applications requiring high precision and low power consumption in compact designs.
Replacement Considerations
LDK130M12R: Fixed 1.2 V output but uses SOT-23-5 package; verify pinout and thermal performance differences. LDK130C-R: Adjustable version in SOT-323-5; requires external resistors for 1.2 V setting. LDK130PUxxR: Other fixed voltages in same DFN package; check exact voltage requirement match.
