Diodes Incorporated Introduces High-Performance AP7179D 3A Low-Dropout Voltage Regulator

by Anna

Diodes Incorporated, a leading semiconductor company, has unveiled the AP7179D, a high-performance 3A-rated low-dropout (LDO) voltage regulator designed to provide clean and stable power for noise-sensitive components. This LDO regulator boasts exceptional performance, making it ideal for various applications, including high-speed communications, test and measurement, medical devices, and video equipment.

Key Features and Benefits:

Low Noise Operation: The AP7179D supports 4.4µVRMS operation at a 0.8V output, making it well-suited for powering noise-sensitive components like SerDes, RF devices, and data converters.


Wide Voltage Conversion Range: With a maximum dropout voltage of 180mV at a 3A load current, it accommodates a broad voltage conversion range.


High Accuracy: The LDO maintains a ±1% output accuracy across varying conditions, including line, load, and temperature changes.


Noise Reduction: Its low-noise reference and error amplifier contribute to a minimal noise floor, while a 40dB power supply rejection ratio (PSRR) at 500kHz reduces the coupling of input supply noise to the output.


Voltage Flexibility: Users can select the output voltage using either pin-programmable settings between 0.8V and 3.95V or an adjustable external resistor divider from 0.8V to 5.5V, reducing the need for additional components.

Compatibility: The low output noise and high-current capabilities make it suitable for high-performance processors such as FPGAs, ASICs, and DSPs.

Compact Design: Housed in a compact 20-pin W-QFN3535 (Type A1) package, the AP7179D offers a space-efficient solution for various applications.


The AP7179D finds applications in a wide range of hardware, including remote radio units (RRUs), outdoor backhaul units, massive MIMO (mMIMO) active antenna systems, ultrasound scanners, radar systems, and laboratory/field instrumentation.

Diodes Incorporated’s AP7179D LDO voltage regulator provides engineers and designers with a reliable and efficient power management solution for noise-sensitive and high-performance applications.

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