Analog Devices Inc. ADP715x LDO Voltage Regulators

Analog Devices Inc. ADP715x LDO (Low Dropout) Voltage Regulators operate from 2.3V to 5.5V and provide up to 2A of output current. Output voltages of 1.2V to 3.3V are possible depending on the model. The ADP715x uses an advanced proprietary architecture that provides high power supply rejection and ultralow noise. This architecture achieves excellent line and loads transient response with only a 10μF ceramic output capacitor. The ADP715x is available in four models that optimize power dissipation and PSRR performance as a function of the input and output voltage.


  • Input voltage range 2.3V to 5.5V
  • Adjustable output voltage range (VOUT) 1.2V to 3.3V
  • Maximum load current 2A
  • Low noise
  • 0.9μV rms typical output noise from 100Hz to 100kHz
  • 1.6μV rms typical output noise from 10Hz to 100kHz
  • Noise spectral density 1.7nV/√Hz from 10kHz to 1MHz
  • Operating temperature range -40°C to +125°C
  • Package options
    • 10-lead LFCSP
    • 8-lead SOIC
  • RoHS compliant


  • Regulation to noise-sensitive applications: phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs
  • Communications and infrastructure
  • Backhaul and microwave links

Application Circuit

Published: 2016-07-07 | Updated: 2022-03-11