AP7179D

Description

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.

Feature(s)

• 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
• Excellent Load Transient Response
• Enable Control
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

• Portable electronic devices
• Digital loads: SerDes, FPGAs, and DSPs
• Analog circuits applications: VCO, ADC, DAC, and LVDS
• Test and measurement equipment