Overview
The ADM7150ACPZ-1.8-R7 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 a compact 8-lead LFCSP package, 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 (100 Hz to 100 kHz) | OUTNOISE | 1.0 | µV rms | ||
| Output Noise (10 Hz to 100 kHz) | OUTNOISE | 1.6 | 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 | VDO | 0.6 | V at VOUT = 5 V, 800 mA load | ||
| Initial Voltage Accuracy | ±1% | ||||
| Voltage Accuracy over Line, Load and Temperature | ±2% | ||||
| Quiescent Current (IGND) | IGND | 4.3 | 7.0 | mA at no load | |
| Shutdown Current | IIN-SD | 0.1 | 3 | µA | |
| Output Voltage Options | Fixed: 1.8 V, 2.8 V, 3.0 V, 3.3 V, 4.5 V, 4.8 V, 5.0 V |
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: Initial voltage accuracy of ±1% and voltage accuracy over line, load, and temperature of ±2%.
- Low quiescent current: 4.3 mA at no load.
- Low shutdown current: 0.1 µA.
- Compact packaging: 8-lead LFCSP and 8-lead SOIC packages.
- 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 ADM7150?
The input voltage range of the ADM7150 is from 4.5 V to 16 V. - What is the maximum output current of the ADM7150?
The maximum output current of the ADM7150 is 800 mA. - What are the key noise specifications of the ADM7150?
The ADM7150 has an output noise of 1.0 µV rms from 100 Hz to 100 kHz and 1.6 µV rms from 10 Hz to 100 kHz, with a noise spectral density of 1.7 nV/√Hz from 10 kHz to 1 MHz. - What is the power supply rejection ratio (PSRR) of the ADM7150?
The PSRR of the ADM7150 is >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz. - What are the available output voltage options for the ADM7150?
The ADM7150 is available with fixed output voltage options including 1.8 V, 2.8 V, 3.0 V, 3.3 V, 4.5 V, 4.8 V, and 5.0 V, among others. - What is the quiescent current of the ADM7150?
The quiescent current of the ADM7150 is 4.3 mA at no load. - What is the shutdown current of the ADM7150?
The shutdown current of the ADM7150 is 0.1 µA. - In what packages is the ADM7150 available?
The ADM7150 is available in 8-lead LFCSP and 8-lead SOIC packages. - What are some typical applications of the ADM7150?
The ADM7150 is typically used in regulated power for noise-sensitive applications, RF mixers, PLLs, VCOs, communications and infrastructure, and cable DAC drivers. - How does the ADM7150 ensure stability?
The ADM7150 is stable with a 10 µF ceramic output capacitor.
