Overview
The ADM7150ARDZ-5.0 is a low dropout (LDO) linear regulator produced by Analog Devices Inc. This component operates from an input voltage range of 4.5 V to 16 V and provides up to 800 mA of output current. It is designed using an advanced proprietary architecture that ensures high power supply rejection ratio (PSRR), ultralow output noise, and excellent line and load transient response. The regulator is available in various fixed output voltage options, including 5.0 V, and is packaged in compact 8-lead LFCSP and SOIC configurations, making it suitable for applications requiring high current in a small footprint.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage Range | VIN | 4.5 | 16 | V | |
| Maximum Output Current | IOUT | 800 | mA | ||
| Output Noise (10 Hz to 100 kHz) | OUTNOISE | 1.6 | µV rms | ||
| Output Noise (100 Hz to 100 kHz) | OUTNOISE | 1.0 | µV rms | ||
| Noise Spectral Density (10 kHz to 1 MHz) | NSD | 1.7 | nV/√Hz | ||
| Power Supply Rejection Ratio (PSRR) at 400 mA load | PSRR | >90 dB (1 kHz to 100 kHz) | |||
| Dropout Voltage at VOUT = 5 V, 800 mA load | VDO | 0.6 | V | ||
| Initial Voltage Accuracy | ±1% | ||||
| Voltage Accuracy over Line, Load and Temperature | ±2% | ||||
| Quiescent Current (IGND) at No Load | IGND | 4.3 | 7.0 | mA | |
| Shutdown Current | IIN-SD | 0.1 | 3 | µA |
Key Features
- Ultralow noise: 1.0 µV rms total integrated noise from 100 Hz to 100 kHz and 1.6 µV rms from 10 Hz to 100 kHz.
- High PSRR: >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz.
- Low dropout voltage: 0.6 V at VOUT = 5 V, 800 mA load.
- High accuracy: ±1% initial voltage accuracy and ±2% voltage accuracy over line, load, and temperature.
- Low quiescent current: 4.3 mA at no load.
- Low shutdown current: 0.1 µA.
- Compact packaging: 8-lead LFCSP and 8-lead SOIC.
- Stable with a 10 µF ceramic output capacitor.
Applications
- Regulated power for noise-sensitive applications.
- RF mixers, phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs.
- Communications and infrastructure.
- Cable digital-to-analog converter (DAC) drivers.
- Backhaul and microwave links.
Q & A
- What is the input voltage range of the ADM7150ARDZ-5.0? The input voltage range is from 4.5 V to 16 V.
- What is the maximum output current of the ADM7150ARDZ-5.0? The maximum output current is 800 mA.
- What is the typical output noise of the ADM7150ARDZ-5.0? The typical output noise is 1.0 µV rms from 100 Hz to 100 kHz.
- What is the power supply rejection ratio (PSRR) of the ADM7150ARDZ-5.0? The PSRR is >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz.
- What are the available output voltage options for the ADM7150ARDZ-5.0? The available fixed output voltage options include 1.8 V, 2.8 V, 3.0 V, 3.3 V, 4.5 V, 4.8 V, and 5.0 V, with additional options between 1.5 V and 5.0 V available upon request.
- What type of packaging is available for the ADM7150ARDZ-5.0? The component is available in 8-lead LFCSP and 8-lead SOIC packages.
- What is the quiescent current of the ADM7150ARDZ-5.0 at no load? The quiescent current is 4.3 mA at no load.
- What is the shutdown current of the ADM7150ARDZ-5.0? The shutdown current is 0.1 µA.
- What are some typical applications of the ADM7150ARDZ-5.0? Typical applications include regulated power for noise-sensitive applications, RF mixers, PLLs, VCOs, communications and infrastructure, cable DAC drivers, and backhaul and microwave links.
- What is the recommended output capacitor for the ADM7150ARDZ-5.0? The regulator is stable with a 10 µF ceramic output capacitor.
