STMicroelectronics

LD39020ADTPU21R  

Linear & Switching Voltage Regulators

LD39020ADTPU21R Description

The LD39020ADTPU21R is a high-performance linear voltage regulator designed by STMicroelectronics, offering a fixed output voltage of 2.1V with a maximum input voltage of 5.5V. This regulator is capable of delivering a continuous output current of 200mA, making it suitable for a wide range of applications requiring stable and reliable power supply solutions. The LD39020ADTPU21R features a low dropout voltage of 0.35V at 200mA, ensuring efficient power conversion even under low input-to-output voltage differentials. The regulator is housed in a surface-mount 4DFN package, which is both compact and robust, facilitating easy integration into modern electronic designs.

LD39020ADTPU21R Features

• Output Type: Fixed
• Input Voltage Range: Up to 5.5V
• Output Current: 200mA
• Output Configuration: Positive
• Low Dropout Voltage: 0.35V @ 200mA
• Quiescent Current: 40 µA
• Power Supply Rejection Ratio (PSRR): 80dB to 55dB across frequencies from 1kHz to 100kHz
• Protection Features: Over Current, Over Temperature, and Soft Start
• Control Features: Enable
• Package Type: Surface Mount 4DFN
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Compliance: ROHS3 Compliant, REACH Unaffected

The LD39020ADTPU21R stands out due to its low dropout voltage and high PSRR, which minimize power loss and noise, respectively. The enable feature allows for dynamic control of the regulator’s operation, enhancing flexibility in power management. Additionally, the comprehensive protection features ensure robustness against overcurrent and overtemperature conditions, safeguarding both the regulator and connected components.

LD39020ADTPU21R Applications

The LD39020ADTPU21R is ideal for applications requiring a stable 2.1V supply with low power consumption and high efficiency. Its low dropout voltage and compact package make it suitable for battery-powered devices, portable electronics, and embedded systems where space is at a premium. The regulator’s high PSRR and low quiescent current contribute to superior performance in noise-sensitive applications, such as analog signal processing and precision instrumentation.

Specific use cases include:

• Battery-Powered Devices: Ensuring efficient power conversion and extended battery life.
• Portable Electronics: Providing a stable power supply in compact form factors.
• Embedded Systems: Offering reliable power management in space-constrained environments.
• Analog Signal Processing: Minimizing noise and interference in sensitive circuits.
• Precision Instrumentation: Delivering high-precision power supply for accurate measurements.

Conclusion of LD39020ADTPU21R

The LD39020ADTPU21R from STMicroelectronics is a versatile and efficient linear voltage regulator, well-suited for applications demanding a stable 2.1V supply with low power consumption and high efficiency. Its low dropout voltage, high PSRR, and comprehensive protection features make it a reliable choice for a variety of electronic designs. The compact 4DFN package and surface-mount configuration facilitate easy integration into modern circuits, while its compliance with industry standards ensures compatibility and safety. For engineers and designers seeking a high-performance, low-power regulator, the LD39020ADTPU21R is an excellent option.

LD39020ADTPU21R Documents

Download datasheets and manufacturer documentation for LD39020ADTPU21R

Datasheets :

LD39020 Datasheet       Power Management Handheld,Portable Guide      

PCN Packaging :

Box Label Chg 28/Jul/2016       Moisture Barrier Bag 09/May/2016      

HTML Datasheet :

LD39020 Datasheet       Power Management Handheld,Portable Guide