Overview
The ADM7150ARDZ-5.0-R7 is a low-dropout (LDO) linear regulator manufactured by Analog Devices Inc. This regulator 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, which ensures high power supply rejection ratio (PSRR), ultralow output noise, and excellent line and load transient response. The device is available in 8-lead SOIC and LFCSP packages, making it suitable for applications requiring a compact, low-profile footprint with excellent thermal performance.
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) | >60 dB (at 1 MHz) | dB | |
| 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 | |
| Operating Temperature Range | TJ | -40 | 125 | °C | |
| Package Type | 8-lead SOIC, 8-lead LFCSP |
Key Features
- Ultralow output noise: 1.0 µV rms from 100 Hz to 100 kHz and 1.6 µV rms from 10 Hz to 100 kHz.
- High power supply rejection ratio (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: Initial voltage accuracy ±1% and voltage accuracy over line, load, and temperature ±2%.
- Low quiescent current: 4.3 mA at no load and low shutdown current: 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, with additional options available upon request.
- Compact 8-lead SOIC and LFCSP packages for excellent thermal performance.
- Short-circuit protection, current-limiting, and thermal shutdown protection.
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-5.0-R7?
The input voltage range is from 4.5 V to 16 V.
- What is the maximum output current of the ADM7150ARDZ-5.0-R7?
The maximum output current is 800 mA.
- What are the key noise specifications of the ADM7150ARDZ-5.0-R7?
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. The noise spectral density is 1.7 nV/√Hz from 10 kHz to 1 MHz.
- What is the power supply rejection ratio (PSRR) of the ADM7150ARDZ-5.0-R7?
The PSRR is >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz.
- What are the available fixed output voltage options for the ADM7150ARDZ-5.0-R7?
The 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 available upon request.
- What are the package types available for the ADM7150ARDZ-5.0-R7?
The device is available in 8-lead SOIC and 8-lead LFCSP packages.
- What is the operating temperature range of the ADM7150ARDZ-5.0-R7?
The operating temperature range is from -40°C to +125°C.
- Does the ADM7150ARDZ-5.0-R7 have any protection features?
Yes, it includes short-circuit protection, current-limiting, and thermal shutdown protection.
- What are some typical applications of the ADM7150ARDZ-5.0-R7?
Typical applications include regulated power noise-sensitive applications, RF mixers, PLLs, VCOs, communications and infrastructure, cable DAC drivers, and backhaul and microwave links.
- How stable is the output with different capacitors?
The output is stable with a 10 µF ceramic output capacitor.
