Overview
The ADM7150ARDZ-3.3 is a low dropout (LDO) linear regulator produced by Analog Devices Inc. This regulator operates within 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 device is available in compact 8-lead LFCSP and 8-lead SOIC packages, 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) | dB | ||
| Dropout Voltage (VOUT = 5 V, 800 mA load) | VDO | 0.6 | V | ||
| Initial Voltage Accuracy | VOUT ACC | ±1% | % | ||
| Voltage Accuracy over Line, Load, and Temperature | VOUT ACC | ±2% | % | ||
| Quiescent Current (IGND) at No Load | IGND | 4.3 | 7.0 | mA | |
| Shutdown Current | IIN-SD | 0.1 | 3 | µA | |
| Operating Temperature Range | TJ | -40 | 125 | °C | |
| Package Style | 8-lead LFCSP, 8-lead SOIC |
Key Features
- High power supply rejection ratio (PSRR) of >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz
- Ultralow output noise: 1.0 µV rms from 100 Hz to 100 kHz and 1.6 µV rms from 10 Hz to 100 kHz
- Noise spectral density of 1.7 nV/√Hz from 10 kHz to 1 MHz
- Dropout voltage of 0.6 V at VOUT = 5 V and 800 mA load
- Initial voltage accuracy of ±1% and voltage accuracy over line, load, and temperature of ±2%
- Quiescent current (IGND) of 4.3 mA at no load and low shutdown current of 0.1 µA
- Stable with a 10 µF ceramic output capacitor
- Fixed output voltage options: 1.8 V, 2.8 V, 3.0 V, 3.3 V, 4.5 V, 4.8 V, and 5.0 V (16 outputs between 1.5 V and 5.0 V available upon request)
- Compact 8-lead LFCSP and 8-lead SOIC packages for excellent thermal performance
Applications
- Regulated power 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-3.3?
The input voltage range is from 4.5 V to 16 V.
- What is the maximum output current of the ADM7150ARDZ-3.3?
The maximum output current is 800 mA.
- What are the typical output noise levels of the ADM7150ARDZ-3.3?
The output noise is 1.0 µV rms from 100 Hz to 100 kHz and 1.6 µV rms from 10 Hz to 100 kHz.
- What is the power supply rejection ratio (PSRR) of the ADM7150ARDZ-3.3?
The PSRR is >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz.
- What is the dropout voltage of the ADM7150ARDZ-3.3 at 800 mA load?
The dropout voltage is 0.6 V at VOUT = 5 V and 800 mA load.
- What is the initial voltage accuracy of the ADM7150ARDZ-3.3?
The initial voltage accuracy is ±1%.
- What is the quiescent current (IGND) of the ADM7150ARDZ-3.3 at no load?
The quiescent current (IGND) is 4.3 mA at no load.
- What are the available package styles for the ADM7150ARDZ-3.3?
The available package styles are 8-lead LFCSP and 8-lead SOIC.
- What are the typical applications of the ADM7150ARDZ-3.3?
Typical applications include regulated power noise-sensitive applications, RF mixers, PLLs, VCOs, communications and infrastructure, cable DAC drivers, and backhaul and microwave links.
- What is the operating temperature range of the ADM7150ARDZ-3.3?
The operating temperature range is from -40°C to +125°C.
