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The AP7179D is a high output current (3A), low-dropout regulator capable of sourcing 3A with 180mV maximum dropout, lownoise (4.4μVRMS), high output voltage accuracy (1%). The device output voltage is pin-programmable from 0.8V to 3.95V using a PCB layout and adjustable from 0.8V to 5.0V using an external resistor divider. The device supports a lower input voltage of 1.1V, which makes it flexible to use and requires a lower component count.
The device’s low noise (4.4μVRMS), high PSRR, and high output current capability makes it ideal to power noise-sensitive devices such as high-performance serializers and deserializers (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and FR components.
High output accuracy, remote sensing, excellent transient performance, and soft-start capabilities also make the AP7179D ideal to power digital loads such as field-programmable gate arrays (FPGAs), digital signal processors (DSPs), and application-specific integrated circuits (ASICs). The enable control and a power-good indicator provide easy and accessible power-sequence control. Output noise immunity is enhanced by adding a bypass capacitor on NR/SS pin.
The AP7179D is packaged in the W-QFN3535-20 (Type A1) package.
Low VIN and Wide VIN Range: 1.1V to 6.5V
Low Dropout Voltage: 180mV at 3A
VOUT Accuracy ±1% Over Line, Load, and Temperature
Programmable Output Voltage
Output Voltage Range: 0.8V to 3.95V
Adjustable Output Voltage
Output Voltage Range: 0.8V to 5.5V
Ultra-High PSRR: 40dB at 500kHz
Output Voltage Noise:
4μVRMS at 0.8V Output
7μVRMS at 5.0V Output
Adjustable Soft-Start Output
Open-Drain Power-Good Indicator Function
Stable with a 47μF or Larger Ceramic Output Capacitor