Overview
The ADP322ACPZ-175-R7 is a high-performance, triple output Low Dropout Voltage Regulator (LDO) produced by Analog Devices Inc. This component is designed to provide high power supply rejection ratio (PSRR), low noise, and low quiescent current, making it ideal for battery-powered and portable devices. The ADP322 series offers fixed output voltage options, with the ADP322ACPZ-175-R7 specifically providing output voltages of 1.75 V, 1.75 V, and 1.75 V.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Voltage Range (VIN1/VIN2, VIN3) | 1.8 V to 5.5 V | |
| Output Voltage | 1.75 V (fixed) | |
| Output Current per Regulator | 200 mA | |
| PSRR at 1 kHz | 76 dB | |
| PSRR at 10 kHz | 70 dB | |
| PSRR at 100 kHz | 60 dB | |
| Output Noise at VOUT = 1.2 V | 24 µV rms (typical) | |
| Dropout Voltage at 200 mA | 110 mV | |
| Quiescent Current at No Load | 85 µA (typical) | All LDOs enabled |
| Operating Junction Temperature | -40°C to +125°C | |
| Package Type | 16-lead, 3 mm × 3 mm LFCSP |
Key Features
- High PSRR: Greater than 60 dB for frequencies up to 100 kHz.
- Low Noise: Typical output noise of 24 µV rms at VOUT = 1.2 V.
- Low Dropout Voltage: 110 mV at 200 mA load.
- Low Quiescent Current: 85 µA typical at no load with all LDOs enabled.
- Fast Turn-On Time: 100 µs to 240 µs depending on the configuration.
- Independent Logic-Controlled Enables for Each Regulator.
- Overcurrent and Thermal Protection.
- Stable with 1 µF ±30% ceramic output capacitors.
Applications
- Mobile Phones
- Digital Cameras and Audio Devices
- Portable and Battery-Powered Equipment
- Portable Medical Devices
- Post DC-to-DC Regulation
Q & A
- What is the input voltage range for the ADP322ACPZ-175-R7?
The input voltage range is from 1.8 V to 5.5 V.
- What are the output voltages for this component?
The output voltages are fixed at 1.75 V for each of the three regulators.
- What is the maximum output current per regulator?
The maximum output current per regulator is 200 mA.
- What is the PSRR at 1 kHz for the ADP322ACPZ-175-R7?
The PSRR at 1 kHz is 76 dB.
- What is the typical output noise at VOUT = 1.2 V?
The typical output noise at VOUT = 1.2 V is 24 µV rms.
- What is the dropout voltage at a 200 mA load?
The dropout voltage at a 200 mA load is 110 mV.
- What is the quiescent current at no load with all LDOs enabled?
The quiescent current at no load with all LDOs enabled is typically 85 µA.
- What is the operating junction temperature range for this component?
The operating junction temperature range is from -40°C to +125°C.
- What type of package does the ADP322ACPZ-175-R7 come in?
The component comes in a 16-lead, 3 mm × 3 mm LFCSP package.
- Does the ADP322ACPZ-175-R7 have overcurrent and thermal protection?
Yes, it has overcurrent and thermal protection features.
