Texas Instruments

TPS79328DBVRG4

TPS79328DBVRG4 Description

The TPS79328DBVRG4 is a high-performance, low-dropout (LDO) linear voltage regulator from Texas Instruments, designed to deliver a fixed 2.8V output with a maximum output current of 200mA. This surface-mount device, packaged in a compact SOT23-5 form factor, is optimized for applications requiring stable, low-noise power supply with minimal dropout voltage (just 0.2V at 200mA). It operates over an input voltage range of up to 5.5V, making it suitable for battery-powered and low-voltage systems. With a quiescent current of 220 µA, it ensures efficient power management in portable and energy-sensitive designs.

TPS79328DBVRG4 Features

• High PSRR (70dB @ 100Hz): Excellent noise rejection for sensitive analog/digital circuits.
• Robust Protection: Integrated safeguards include over-current, over-temperature, reverse polarity, and under-voltage lockout (UVLO).
• Enable Control: Allows for power sequencing and standby mode, reducing power consumption.
• Low Dropout (0.2V @ 200mA): Ideal for applications with tight voltage headroom.
• RoHS3 & REACH Compliant: Environmentally friendly and suitable for global markets.
• Wide Operating Temperature Range: Reliable performance in harsh conditions.

Compared to similar LDOs, the TPS79328DBVRG4 stands out with its ultra-low dropout voltage, superior PSRR performance, and comprehensive protection features, making it a preferred choice for precision power management.

TPS79328DBVRG4 Applications

• Portable Electronics: Smartphones, wearables, and IoT devices benefit from its low Iq and small footprint.
• Battery-Powered Systems: Efficient voltage regulation in handheld instruments and wireless sensors.
• RF/Precision Analog Circuits: High PSRR ensures clean power for ADCs, DACs, and RF modules.
• Industrial Controls: Reliable operation in automation systems with UVLO and thermal protection.
• Medical Devices: Low-noise output critical for patient monitoring equipment.

Conclusion of TPS79328DBVRG4

The TPS79328DBVRG4 is a versatile, high-efficiency LDO regulator combining low dropout, excellent noise immunity, and robust protection in a miniature package. Its enable pin and ultra-low quiescent current make it ideal for power-sensitive designs, while its wide input range and reliability cater to industrial and consumer applications. For engineers seeking a balance of performance, size, and cost, this regulator is a compelling solution for modern electronic systems.