Overview
The ADP322ACPZ-135-R7, produced by Analog Devices Inc., is a high-performance, triple output Low Dropout (LDO) voltage regulator. This component is designed to provide high Power Supply Rejection Ratio (PSRR), low noise, low quiescent current, and low dropout voltage, making it ideal for extending the battery life of portable and battery-powered devices.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Output Current per Regulator | 200 mA | - |
| Input Voltage Range (VIN1/VIN2, VIN3) | 1.8 V to 5.5 V | - |
| Bias Voltage Range (VBIAS) | 2.5 V to 5.5 V | - |
| Output Voltage Accuracy (ADP322) | ±1% | 100 µA < IOUT < 200 mA, VIN = (VOUT + 0.5 V) to 5.5 V, TJ = -40°C to +125°C |
| 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 | - |
| Dropout Voltage at IOUT = 200 mA | 110 mV | VOUT = 3.3 V |
| Ground Current at No Load | 85 µA | All LDOs enabled |
| Junction Temperature Range | -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 and 43 µV rms at VOUT = 2.8 V.
- Low Dropout Voltage: 110 mV at 200 mA load.
- Low Quiescent Current: 85 µA typical ground current at no load, all LDOs enabled.
- Three Independent Logic-Controlled Enables.
- Overcurrent and Thermal Protection.
- Stable with 1 µF ceramic output capacitors; no noise bypass capacitor required.
- Fast Turn-On Circuit: 100 µs to 240 µs start-up time depending on the configuration.
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 maximum output current per regulator for the ADP322ACPZ-135-R7?
The maximum output current per regulator is 200 mA.
- What is the input voltage range for the ADP322ACPZ-135-R7?
The input voltage range is from 1.8 V to 5.5 V.
- What is the bias voltage range for the ADP322ACPZ-135-R7?
The bias voltage range is from 2.5 V to 5.5 V.
- 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 IOUT = 200 mA for VOUT = 3.3 V?
The dropout voltage at IOUT = 200 mA for VOUT = 3.3 V is 110 mV.
- Does the ADP322ACPZ-135-R7 require a noise bypass capacitor?
No, the ADP322ACPZ-135-R7 does not require a noise bypass capacitor.
- What is the junction temperature range for the ADP322ACPZ-135-R7?
The junction temperature range is from -40°C to +125°C.
- What type of package does the ADP322ACPZ-135-R7 come in?
The ADP322ACPZ-135-R7 comes in a 16-lead, 3 mm × 3 mm LFCSP package.
- Does the ADP322ACPZ-135-R7 have overcurrent and thermal protection?
- What are some typical applications for the ADP322ACPZ-135-R7?
Typical applications include mobile phones, digital cameras and audio devices, portable and battery-powered equipment, and portable medical devices.
