ADP223
Dual, 300 mA Adjustable Output, Low Noise, High PSRR Voltage Regulator
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Overview
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%
- Low noise: 27 μV rms at VOUT = 1.2 V, 50 μV rms at VOUT = 2.8 V
- Fixed output voltage from 0.8V to 3.3 V (ADP222/ADP224)
- Adjustable output voltage range from 0.5 V to 5.0 V (ADP223/ADP225)
- Quick output discharge (QOD)—ADP224/ADP225
- High PSRR: 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz
- 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
Product Details
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 × 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
- Portable and battery-powered equipment
- Portable medical devices
- Post dc-to-dc regulation
- Point of sale terminals
- Credit card readers
- Automatic meter readers
- Wireless network equipment
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Markets and Technologies
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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AN-1329: Noise Reduction Network for Adjustable Low Dropout Regulators (Rev. 0)12/5/2016PDF486 K
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Linear Low Dropout (LDO) Regulator Solutions4/17/2018PDF3 M
Tools & Simulations
Design Tools
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.
Reference Designs (1)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADP223ACPZ-R7 | Material Declaration | Reliability Data | 8-Lead LFCSP (2mm x 2mm w/ EP) | |
| Wafer Fabrication Data |
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.