Texas Instruments

TPS73643DBVRG4

TPS73643DBVRG4 Description

The TPS73643DBVRG4 is a linear regulator designed for high-performance applications, offering a fixed output voltage of 4.3V with a maximum output current of 400mA. Manufactured by Texas Instruments, this device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a compact SOT23-5 package, making it suitable for space-constrained designs. Despite its small form factor, the TPS73643DBVRG4 provides robust performance and a wide range of protection features.

TPS73643DBVRG4 Features

• Output Type: Fixed
• Input Voltage Range: Up to 5.5V
• Output Current: 400mA
• Number of Regulators: 1
• Output Configuration: Positive
• Supply Current (Max): 1mA
• Output Voltage (Fixed): 4.3V
• Voltage Dropout (Max): 0.2V @ 400mA
• Quiescent Current (Iq): 550µA
• Power Supply Rejection Ratio (PSRR): 58dB to 37dB (100Hz to 10kHz)
• Control Features: Enable
• Protection Features: Over Current, Over Temperature, Reverse Polarity
• Mounting Type: Surface Mount
• Package: Tape & Reel (TR)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Compliance: ROHS3 Compliant, REACH Unaffected, ECCN: EAR99, HTSUS: 8542.39.0001

TPS73643DBVRG4 Applications

The TPS73643DBVRG4 is ideal for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage of 0.2V at 400mA ensures high efficiency, even when the input voltage is close to the output voltage. The regulator's low quiescent current of 550µA makes it suitable for battery-powered devices where power consumption needs to be minimized.

The device's wide input voltage range (up to 5.5V) and robust protection features, including over current, over temperature, and reverse polarity protection, make it highly reliable and suitable for a variety of applications, such as:

• Portable electronic devices
• Battery-powered systems
• Industrial control systems
• Communication equipment

Conclusion of TPS73643DBVRG4

The TPS73643DBVRG4 from Texas Instruments is a high-performance linear regulator designed for applications requiring a fixed output voltage of 4.3V and an output current of 400mA. Its low dropout voltage, low quiescent current, and comprehensive protection features make it an excellent choice for applications where efficiency and reliability are paramount. Despite being marked as obsolete, the TPS73643DBVRG4 remains a viable option for designers looking for a compact, high-performance regulator with a proven track record.