Overview
The ADP222ACPZ-1218-R7 is a dual-output, low-noise, high power supply rejection ratio (PSRR) linear voltage regulator produced by Analog Devices Inc. This component is part of the ADP222/ADP223/ADP224/ADP225 series, which is designed to meet the demanding performance and board space requirements of wireless and portable applications. The ADP222ACPZ-1218-R7 offers fixed output voltages, low quiescent current, low dropout voltage, and excellent transient response, making it ideal for extending battery life in portable devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 V to 5.5 V | V |
| Output Voltage (Fixed) | 0.8 V to 3.3 V | V |
| Output Current | 300 mA | A |
| PSRR | 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz | dB |
| Noise | 27 µV rms at VOUT = 1.2 V, 50 µV rms at VOUT = 2.8 V | µV |
| Dropout Voltage | 170 mV at 300 mA load | mV |
| Quiescent Current | 65 µA typical at no load, both LDOs enabled | µA |
| Package | 8-lead, 2 mm × 2 mm LFCSP | |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- High PSRR: Maintains power supply rejection greater than 60 dB for frequencies up to 100 kHz.
- Low Noise: Offers low noise performance without the need for a noise bypass capacitor.
- Low Quiescent Current: 65 µA typical at no load, both LDOs enabled.
- Low Dropout Voltage: 170 mV at 300 mA load.
- Quick Output Discharge (QOD): Available in ADP224 and ADP225 models.
- Overcurrent and Thermal Protection: Prevents damage in adverse conditions.
- Small Package: 8-lead, 2 mm × 2 mm LFCSP package.
- Stable with Small Capacitors: Stable with 1 µF, ±30% ceramic output capacitors.
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.
Q & A
- What is the input voltage range of the ADP222ACPZ-1218-R7? The input voltage range is from 2.5 V to 5.5 V.
- What are the fixed output voltage options for the ADP222ACPZ-1218-R7? The fixed output voltages range from 0.8 V to 3.3 V.
- What is the maximum output current of the ADP222ACPZ-1218-R7? The maximum output current is 300 mA.
- What is the PSRR of the ADP222ACPZ-1218-R7? The PSRR is 70 dB at 10 kHz, 60 dB at 100 kHz, and 40 dB at 1 MHz.
- What is the typical quiescent current of the ADP222ACPZ-1218-R7? The typical quiescent current is 65 µA at no load, with both LDOs enabled.
- Does the ADP222ACPZ-1218-R7 have overcurrent and thermal protection? Yes, it includes overcurrent and thermal protection circuitry.
- What package type is the ADP222ACPZ-1218-R7 available in? It is available in an 8-lead, 2 mm × 2 mm LFCSP package.
- What is the operating temperature range of the ADP222ACPZ-1218-R7? The operating temperature range is from −40°C to +125°C.
- Is the ADP222ACPZ-1218-R7 stable with small capacitors? Yes, it is stable with 1 µF, ±30% ceramic output capacitors.
- What are some typical applications of the ADP222ACPZ-1218-R7? Typical applications include portable and battery-powered equipment, portable medical devices, and wireless network equipment.
