STMicroelectronics

LD39020ADTPU18R  

Linear & Switching Voltage Regulators

LD39020ADTPU18R Description

The LD39020ADTPU18R is a high-performance linear voltage regulator designed by STMicroelectronics. This regulator is engineered to provide a stable and reliable power supply with a fixed output voltage of 1.8V and a maximum output current of 200mA. It features a wide input voltage range, extending from 1.8V to 5.5V, making it suitable for various applications where input voltage fluctuations are common. The regulator operates with a low dropout voltage of 0.35V at 200mA, ensuring high efficiency even at low input-to-output voltage differentials.

The LD39020ADTPU18R is housed in a compact 4DFN package, ideal for space-constrained designs. It supports surface-mount technology (SMT), facilitating easy integration into modern PCB designs. The regulator includes an enable control feature, allowing users to turn the regulator on or off as needed, which is particularly useful for power management in battery-operated devices.

LD39020ADTPU18R Features

• Fixed Output Voltage: Provides a stable 1.8V output, ensuring consistent power supply to connected devices.
• Wide Input Voltage Range: Operates from 1.8V to 5.5V, accommodating a variety of input sources.
• Low Dropout Voltage: 0.35V at 200mA, enhancing efficiency and extending battery life in low-voltage applications.
• Low Quiescent Current: 40 µA, minimizing power consumption in standby mode.
• High PSRR: 80dB to 55dB across a frequency range of 1kHz to 100kHz, effectively rejecting noise and ripple from the input supply.
• Protection Features: Over-current and over-temperature protection, along with soft start, safeguard the regulator and connected components from damage.
• Enable Control: Allows dynamic control of the regulator, optimizing power management in complex systems.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Packaging: Supplied in a tape and reel (TR) format, facilitating automated assembly processes.

LD39020ADTPU18R Applications

The LD39020ADTPU18R is well-suited for a range of applications where a stable and efficient power supply is required. Its low dropout voltage and wide input range make it ideal for battery-powered devices, such as portable electronics, mobile phones, and IoT sensors. The regulator's compact size and surface-mount package are particularly advantageous in space-constrained designs, such as wearable devices and small form-factor modules.

The enable control feature and low quiescent current make the LD39020ADTPU18R suitable for applications requiring dynamic power management, such as microcontrollers and embedded systems. Its high PSRR ensures clean power delivery, making it ideal for sensitive analog circuits and precision instrumentation.

Conclusion of LD39020ADTPU18R

The LD39020ADTPU18R stands out as a reliable and efficient linear voltage regulator, offering a combination of high performance and flexibility. Its low dropout voltage, wide input range, and low quiescent current make it a superior choice for battery-operated and portable devices. The inclusion of enable control and comprehensive protection features further enhances its versatility and reliability.

With its compact 4DFN package and surface-mount compatibility, the LD39020ADTPU18R is well-suited for modern electronics designs, ensuring seamless integration into a variety of applications. Its compliance with ROHS3 and REACH standards underscores STMicroelectronics' commitment to environmental responsibility and regulatory adherence.

Overall, the LD39020ADTPU18R is a robust solution for designers seeking a high-performance, low-power regulator that meets the demands of contemporary electronic systems.

LD39020ADTPU18R Documents

Download datasheets and manufacturer documentation for LD39020ADTPU18R

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