ADP223 Dual, 300 mA Adjustable Output, Low Noise, High PSRR Voltage Regulator

The 300 mA, adjustable dual output ADP223/ADP225 and fixed dual output ADP222/ADP224 combine high PSRR, low noise, low quiescent current, and low dropout voltage in a voltage regulator that is 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 ADP222/ADP223/ADP224/ADP225 extend the battery life of portable devices.

The ADP222/ADP223/ADP224/ADP225 maintain power supply rejection greater than 60 dB for frequencies as high as 100 kHz while operating with a low headroom voltage. The ADP222/ADP223/ADP224/ADP225 offer much lower noise performance than competing LDOs without the need for a noise bypass capacitor. Overcurrent and thermal protection circuitry prevent damage in adverse conditions.

The ADP224 and ADP225 are identical to the ADP222 and ADP223, respectively, but with the addition of a quick output discharge (QOD) feature.

The ADP222/ADP223/ADP224/ADP225 are available in a small 8-lead, 2 mm x 2 mm LFCSP package and are stable with tiny 1 μF, ±30% ceramic output capacitors, resulting in the smallest possible board area for a wide variety of portable power needs.

APPLICATIONS
  • Mobile phones
  • Digital camera and audio devices
  • Portable and battery-powered equipment
  • Portable medical devices
  • Post dc-to-dc regulation
Features and Benefits
  • Input voltage range: 2.5 V to 5.5 V
  • Small, 8-lead, 2 mm x 2 mm LFCSP package
  • Initial accuracy: ±1%
  • High PSRR: 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz
  • Low noise: 27 μV rms at VOUT = 1.2 V, 50 μV rms at VOUT = 2.8 V
  • Excellent transient response
  • Low dropout voltage: 170 mV at 300 mA load
  • 65 μA typical ground current at no load, both LDOs enabled
  • Overcurrent and thermal protection
Power Management
Design Tools
Data Sheets
Documentnote
ADP222/ADP223/ADP224/ADP225: Dual, 300 mA Output, Low Noise, High PSRR Voltage Regulators Data Sheet (Rev. E)PDF 743 kB
Application Notes
Documentnote
AN-1329: Noise Reduction Network for Adjustable Low Dropout Regulators (Rev. 0)PDF 486.76 K
User Guides
Documentnote
UG-227: Evaluating the ADP223/ADP225 Dual, 300 mA Output, Adjustable, Low Noise, High PSRR Voltage RegulatorPDF 197 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADP223ACPZ-R7 Production8 ld LFCSP (2x2, w/1.6 x1.0 ep) REEL 3000-40 to 125C00.49Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
ADP223CP-EVALZEvaluation Board60Y
ADP222/ADP223/ADP224/ADP225:双通道、300 mA输出、低噪声、高PSRR电压调节器 (Rev. D ) adp223
ADP222/ADP223/ADP224/ADP225: Dual, 300 mA Output, Low Noise, High PSRR Voltage Regulators Data Sheet (Rev. E) adp223
ADI Linear Regulator Design Tool and Parametric Search adp2108
AN-1329: Noise Reduction Network for Adjustable Low Dropout Regulators (Rev. 0) adp1741
AN-1329:面向可调低压差稳压器的降噪网络 (Rev. 0) adp1741
UG-227: Evaluating the ADP223/ADP225 Dual, 300 mA Output, Adjustable, Low Noise, High PSRR Voltage Regulator adp223