LD56020J180R

Overview

The LD56020J180R is a high-accuracy linear voltage regulator providing a fixed 1.8 V output with a guaranteed 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 dropout characteristics, reaching a maximum of 190 mV at full load. The device maintains tight output voltage tolerance of ±1% at 25 °C and ±2% over the operating temperature range. Designed for space-constrained environments, it utilizes a Flip-Chip4 package measuring 0.65 x 0.65 mm². Key electrical attributes include a typical quiescent current of 18 μA, standby current below 0.1 μA when disabled, and ultra-low output noise of 8.8 μV RMS across the 10 Hz to 100 kHz bandwidth.

Feature Summary

• Logic-controlled electronic shutdown function enables deep sleep mode with minimal power consumption
• Integrated thermal protection safeguards against overheating during operation
• Output active discharge function ensures rapid voltage decay upon disablement
• Short-circuit current foldback limits fault currents to protect internal circuitry

Applications

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

Procurement Notes

Verify the specific ordering code suffix to confirm the required output voltage and package type before procurement. Confirm that the selected variant matches the intended PCB footprint, as the LD56020 series includes both SOT23-5L and Flip-Chip4 options. Ensure compatibility with the system's enable logic levels and capacitor requirements for stability.

Selection Notes

Select this component for applications requiring precise voltage regulation in compact form factors. The low quiescent current makes it suitable for battery-powered devices where standby power is critical. Verify that the input voltage remains above the minimum threshold plus the dropout voltage under all load conditions to maintain regulation.

Part Context

This part belongs to the LD56020 family of ultra-low dropout linear regulators manufactured by STMicroelectronics. The family offers various fixed output voltages ranging from 0.6 V to 4.0 V in 50 mV steps. Other variants are available in SOT23-5L packages or different output voltages within the same Flip-Chip4 footprint.

Replacement Considerations

LD56020M180R

FAQ

What is the recommended capacitance for stable operation?

The datasheet recommends using a 1 µF ceramic capacitor on both the input and output pins to ensure stability.

How does the device handle short circuits?

The LD56020J180R incorporates short-circuit current foldback protection, which limits the output current to approximately 100 mA when the output is shorted to ground.