Overview
The ADP222ACPZ-3325-R7 is a dual, 300 mA output, low noise linear voltage regulator IC produced by Analog Devices Inc. This component is part of the ADP222/ADP223/ADP224/ADP225 family, known for its high performance, low quiescent current, and low dropout voltage. It is particularly suited for wireless applications and portable devices where battery life and board space are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.5 V to 5.5 V | V |
| Output Voltage | Fixed: 1.5 V, 3.3 V | V |
| Output Current | 300 mA per output | A |
| Dropout Voltage | 170 mV at 300 mA load | mV |
| Quiescent Current | 65 µA typical at no load | µA |
| Noise | 27 µV rms at VOUT = 1.2 V, 50 µV rms at VOUT = 2.8 V | µV rms |
| PSRR | 70 dB at 10 kHz, 60 dB at 100 kHz | dB |
| Package | 8-lead, 2 mm x 2 mm LFCSP | |
| Output Capacitor | 1 µF, ±30% ceramic |
Key Features
- Low quiescent current and low dropout voltage to extend battery life in portable devices.
- High power supply rejection ratio (PSRR) of up to 70 dB at 10 kHz and 60 dB at 100 kHz.
- Low noise performance without the need for a noise bypass capacitor.
- Overcurrent and thermal protection to prevent damage in adverse conditions.
- Quick output discharge (QOD) feature available in ADP224 and ADP225 models.
- Small 8-lead, 2 mm x 2 mm LFCSP package for minimal board space.
Applications
- Portable and battery-powered equipment.
- Portable medical devices.
- Post dc-to-dc regulation.
- Point of sale terminals and credit card readers.
- Automatic meter readers.
- Wireless network equipment.
Q & A
- What is the input voltage range of the ADP222ACPZ-3325-R7? The input voltage range is from 2.5 V to 5.5 V.
- What are the fixed output voltages available for the ADP222ACPZ-3325-R7? The fixed output voltages are 1.5 V and 3.3 V.
- What is the maximum output current per output for the ADP222ACPZ-3325-R7? The maximum output current per output is 300 mA.
- What is the typical quiescent current of the ADP222ACPZ-3325-R7 at no load? The typical quiescent current is 65 µA.
- Does the ADP222ACPZ-3325-R7 have overcurrent and thermal protection? Yes, it includes overcurrent and thermal protection circuitry.
- What type of package does the ADP222ACPZ-3325-R7 come in? It comes in an 8-lead, 2 mm x 2 mm LFCSP package.
- What is the recommended output capacitor for the ADP222ACPZ-3325-R7? The recommended output capacitor is a 1 µF, ±30% ceramic capacitor.
- What are some common applications for the ADP222ACPZ-3325-R7? Common applications include portable and battery-powered equipment, portable medical devices, and wireless network equipment.
- Does the ADP222ACPZ-3325-R7 have a quick output discharge feature? No, the quick output discharge feature is available in the ADP224 and ADP225 models, not the ADP222.
- What is the noise performance of the ADP222ACPZ-3325-R7? The noise performance is 27 µV rms at VOUT = 1.2 V and 50 µV rms at VOUT = 2.8 V.
