LD56020J120R

Overview

The LD56020J120R is a high-accuracy low-dropout linear regulator from STMicroelectronics, providing a fixed 1.2 V output with a maximum load current of 200 mA. It operates within an input voltage range of 1.1 V to 5.5 V and features ultra-low noise performance, specified at 8.8 µVRMS between 10 Hz and 100 kHz. The device utilizes Flip-Chip4 packaging (0.65 x 0.65 mm²) for compact integration. Key electrical characteristics include a typical quiescent current of 18 µA and an output voltage tolerance of ±2% over temperature. It incorporates logic-controlled shutdown, thermal protection, and short-circuit foldback.

Feature Summary

• Ultra-low noise performance suitable for sensitive RF and analog circuits
• Logic-controlled electronic shutdown enabling deep sleep modes
• Integrated thermal shutdown and short-circuit current foldback protection
• Stabilized operation using small ceramic capacitors

Applications

• Image sensors
• VCO and RF modules
• Smartphones and tablets

Procurement Notes

Verify the specific ordering code LD56020J120R against the manufacturer's latest datasheet revision DS13164 Rev 3 to ensure compatibility with required output voltage and package type. Confirm that the Flip-Chip4 footprint matches the design layout. Check for any environmental compliance grades such as ECOPACK if restricted substances are required for the target market.

Selection Notes

Select this component when space constraints require a Flip-Chip4 package while maintaining strict noise requirements for RF sections. Ensure the input voltage remains above the dropout threshold plus headroom. Verify that the application does not exceed the 200 mA guaranteed output current limit. Consider the SOT23-5L variant if larger board area is available but lower cost or easier assembly is prioritized.

Part Context

This part belongs to the LD56020 family of low-input voltage, ultra-low noise LDOs designed for battery-operated portable devices. The 'J' suffix indicates the Flip-Chip4 package option, while '120' specifies the 1.2 V nominal output voltage. Other variants in the series offer different fixed voltages and the SOT23-5L package configuration.

Replacement Considerations

Direct substitutes within the same family include other LD56020 variants with different output voltages or the SOT23-5L packaged versions, provided the pinout and functional specifications align with the system requirements.