Texas Instruments

TPS79942DDCRG4  

Linear & Switching Voltage Regulators

TPS79942DDCRG4 Description

The TPS79942DDCRG4 is a high-performance linear regulator designed by Texas Instruments, offering a fixed output voltage of 4.2V and a maximum output current of 200mA. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact SOT23-5 package, making it suitable for surface mount applications. The regulator is designed to operate with an input voltage range up to 6.5V, ensuring compatibility with a variety of power sources.

TPS79942DDCRG4 Features

• Output Type: Fixed
• Input Voltage Range: Up to 6.5V
• Output Current: 200mA
• Output Configuration: Positive
• Output Voltage: Fixed at 4.2V
• Dropout Voltage: As low as 0.16V at 200mA, ensuring high efficiency even at low input-to-output voltage differentials.
• Quiescent Current: 60 µA, contributing to low power consumption in standby mode.
• Power Supply Rejection Ratio (PSRR): Ranging from 70dB at 100Hz to 38dB at 100kHz, providing excellent noise filtering capabilities.
• Control Features: Enable functionality allows for dynamic control of the regulator's operation.
• Protection Features: Over Current, Over Temperature, Reverse Polarity, and Under Voltage Lockout (UVLO) protect the device and connected circuits from various fault conditions.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for a wide range of manufacturing environments.

TPS79942DDCRG4 Applications

The TPS79942DDCRG4 is ideal for applications requiring a stable 4.2V supply with low power consumption and high efficiency. Its compact size and surface mount package make it suitable for space-constrained designs. Key applications include:

• Battery-powered devices: Provides a stable voltage for lithium-ion batteries, ensuring optimal performance and longevity.
• Portable electronics: Ideal for smartphones, tablets, and other portable devices where power efficiency and small form factor are critical.
• Wearable technology: Suitable for fitness trackers, smartwatches, and other wearable devices that require low power consumption and high reliability.
• IoT devices: Enables stable power supply for sensors and actuators in Internet of Things (TIo) applications.
• Medical devices: Provides reliable power for portable medical devices, ensuring accurate operation and patient safety.

Conclusion of TPS79942DDCRG4

The TPS79942DDCRG4 from Texas Instruments is a robust and efficient linear regulator designed for applications requiring a stable 4.2V supply. Its low dropout voltage, high PSRR, and comprehensive protection features make it a reliable choice for a wide range of electronic devices. The compact SOT23-5 package and surface mount compatibility ensure ease of integration into modern, space-constrained designs. With its low quiescent current and compliance with environmental standards, the TPS79942DDCRG4 stands out as an excellent option for power management in portable and wearable electronics.

TPS79942DDCRG4 Documents

Download datasheets and manufacturer documentation for TPS79942DDCRG4

PCN Assembly/Origin :

Qualification Assembly/Test Site 14/Jul/2014      

Datasheets :

TPS799 Datasheet      

PCN Obsolescence/ EOL :

G4 Devices EOL 29/Nov/2023      

PCN Design/Specification :

TPS799x 16/Mar/2022