Analog Devices Inc. ADPL42002 CMOS LDO Linear Regulators

Analog Devices Inc. ADPL42002 CMOS LDO Linear Regulators feature low noise and operate from 2.7V to 20V range, providing up to 200mA of output current. These regulators are ideal for regulating high-performance analog and mixed-signal circuits operating from 19V down to 1.2V rails. The ADPL42002 regulators utilize an advanced proprietary architecture to provide high power supply rejection, low noise, and achieve excellent line and load transient response. The output noise of the regulators is 20μVRMS independent of the output voltage for the fixed options of 5V or less. These regulators are available in four fixed output voltage options, with each fixed output voltage being adjustable above the initial set-point with an external feedback divider. Typical applications include precision amplifiers, ADC and DAC circuits, communications, infrastructure, healthcare, industrial, and instrumentation.

Features

  • 20µVRMS low noise independent of fixed output voltage
  • 78dB PSRR @ 10kHz, VOUT ≤ 5V and VIN = 7V
  • 2.7V to 20V input voltage range
  • 200mA maximum output current
  • ±1% initial accuracy
  • User-programmable soft start
  • 80μA (typical) low Quiescent current IGND with no load
  • ±1.8% Accuracy over line, load, and temperature (TJ = −40°C to 125°C)
  • 220mV (typical) low dropout voltage @ 200mA load and VOUT = 5V
  • 1.8μA low shutdown current @ VIN = 5V and 3.0μA @ VIN = 20V
  • Stable with a small 2.2µF ceramic output capacitor
  • 1.8V, 2.5V, 3.3V, and 5V fixed output voltage options
  • Adjustable output from 1.2V to VIN – VDO, output can be adjusted above the initial set point
  • Precision enable
  • 6-Lead LFCSP (2mm x 2mm) and 8-Lead SOIC

Applications

  • Regulation to noise-sensitive use cases:
    • ADC and DAC circuits, precision amplifiers, and power for VCO VTUNE control
  • Communications and infrastructure
  • Medical and healthcare
  • Industrial and instrumentation

Typical Application Circuits

Application Circuit Diagram - Analog Devices Inc. ADPL42002 CMOS LDO Linear Regulators
Inilathala: 2025-04-23 | Na-update: 2025-05-12