ADP221

PRODUCTION

Dual, 200 mA, Low Noise, High PSRR Voltage Regulator

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Overview

  • Input voltage range: 2.5 V to 5.5 V
  • Dual independent 200 mA low dropout voltage regulators
  • Miniature 6-ball, 1.0 mm × 1.5 mm WLCSP
  • Initial accuracy: ±1%
  • Stable with 1 μF ceramic output capacitors
  • No noise bypass capacitor required
  • Two independent logic controlled enables
  • Please see data sheet for additional features.

The 200 mA dual output ADP220/ADP221 combine high PSRR, low noise, low quiescent current, and low dropout voltage in a voltage regulator ideally suited for wireless applications with demanding performance and board space requirements.

The low quiescent current, low dropout voltage, and wide input voltage range of the ADP220/ADP221 extend the battery life of portable devices. The ADP220/ADP221 maintain power supply rejection greater than 60 dB for frequencies as high as 100 kHz while operating with a low headroom voltage. The ADP220 offers much lower noise performance than competing LDOs without the need for a noise bypass capacitor. The ADP221 also includes an active pull-down to quickly discharge output loads.

The ADP220/ADP221 are available in a miniature 6-ball WLCSP package and is stable with tiny 1 μF ± 30% ceramic output capacitors, resulting in the smallest possible board area for a wide variety of portable power needs.

The ADP220/ADP221 are available in many output voltage combinations, ranging from 0.8 V to 3.3 V, and offer overcur-rent and thermal protection to prevent damage in adverse conditions.

APPLICATIONS

  • Mobile phones
  • Digital cameras and audio devices
  • Portable and battery-powered equipment
  • Portable medical devices
  • Post dc-to-dc regulation

ADP221
Dual, 200 mA, Low Noise, High PSRR Voltage Regulator
ADP220/ADP221 Typical Application Diagram ADP220/ADP221 Functional Block Diagram ADP220/ADP221 Outline Dimensions ADP220/ADP221 Pin Configuration
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Documentation

Data Sheet 1

Application Note 1

Evaluation Design File 1

Frequently Asked Question 1

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Tools & Simulations

ADI Linear Regulator Design Tool and Parametric Search

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

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Evaluation Kits

EVAL-ADP221

ADP221 Evaluation Board

Product Details

These evaluation boards are used to demonstrate the functionality of the ADP221 linear regulators.


Simple device measurements such as line and load regulation, dropout, and ground current can be demonstrated with just a single voltage supply, a voltmeter, a current meter, and load resistors.

EVAL-ADP221
ADP221 Evaluation Board

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