Texas Instruments

TPS79942DDCT  

Linear & Switching Voltage Regulators

TPS79942DDCT Description

The TPS79942DDCT is a high-performance linear regulator designed by Texas Instruments, offering a fixed output voltage of 4.2V and capable of delivering up to 200mA of output current. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-5 package, making it ideal for space-constrained applications. The regulator features a maximum input voltage of 6.5V and boasts a low dropout voltage of 0.16V at 200mA, ensuring efficient operation even at low input-to-output differentials. With a quiescent current of just 60 µA, the TPS79942DDCT is designed for low-power applications, making it suitable for battery-operated devices.

TPS79942DDCT Features

• Output Type: Fixed
• Output Voltage: 4.2V
• Output Current: Up to 200mA
• Input Voltage Range: Up to 6.5V
• Low Dropout Voltage: 0.16V @ 200mA
• Quiescent Current: 60 µA
• Power Supply Rejection Ratio (PSRR): 70dB to 38dB (100Hz to 100kHz)
• Protection Features: Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
• Control Features: Enable
• Package Type: SOT23-5
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Compliance: RoHS3 Compliant, REACH Unaffected

TPS79942DDCT Applications

The TPS79942DDCT is designed for a wide range of applications where a stable and efficient power supply is critical. Its low dropout voltage and high PSRR make it ideal for applications requiring minimal noise and high efficiency. Some specific use cases include:

• Battery-Powered Devices: The low quiescent current and high efficiency make it suitable for portable electronics and IoT devices.
• Consumer Electronics: Ideal for powering sensitive analog circuits in audio equipment, cameras, and other consumer devices.
• Industrial Applications: Suitable for powering sensors and low-power controllers in industrial environments.
• Medical Devices: Its stability and low noise make it ideal for powering sensitive medical equipment.

Conclusion of TPS79942DDCT

The TPS79942DDCT from Texas Instruments is a versatile and efficient linear regulator that offers a robust set of features tailored for low-power, high-efficiency applications. Its low dropout voltage and high PSRR ensure minimal power loss and noise, making it an excellent choice for battery-operated and sensitive analog applications. The compact SOT23-5 package and surface-mount design allow for easy integration into a variety of systems. With comprehensive protection features and compliance with industry standards, the TPS79942DDCT stands out as a reliable and high-performance solution in the power management domain.

TPS79942DDCT Documents

Download datasheets and manufacturer documentation for TPS79942DDCT

Datasheets :

TPS799 Datasheet      

PCN Packaging :

Retraction of select devices 23/Aug/2023       Mult Dev A/T Chgs 30/Mar/2023      

PCN Design/Specification :

TPS799x 16/Mar/2022