Description

The DIODES™ 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 RF 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.

Features

 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

 Pin-Strapped 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:

 4.4μVRMS at 0.8V Output

 7.7μVRMS 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/

Applications

 Portable electronic devices

 Digital loads: SerDes, FPGAs, and DSPs

 Analog circuits applications: VCO, ADC, DAC, and LVDS

 Test and measurement equipment

AP7179D Datasheet Download