Overview
The ADM7150ACPZ-3.3-R2 is a high-performance, low dropout (LDO) linear regulator produced 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 that ensures high power supply rejection ratio (PSRR), ultralow output noise, and excellent line and load transient response. The ADM7150 is available in various fixed output voltage options, with the ADM7150ACPZ-3.3-R2 specifically providing a fixed output voltage of 3.3 V.
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 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 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 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.
- Stable with a 10 µF ceramic output capacitor.
- Available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
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 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. 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 ADM7150?
The PSRR of the ADM7150 is >90 dB from 1 kHz to 100 kHz and >60 dB at 1 MHz.
- What is the dropout voltage of the ADM7150?
The dropout voltage of the ADM7150 is 0.6 V at VOUT = 5 V, 800 mA load.
- What are the available output voltage options for the ADM7150?
The ADM7150 is available in various 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. Additional fixed output voltages between 1.5 V and 5.0 V are available upon request.
- What are the typical applications of the ADM7150?
The ADM7150 is typically used in regulated power for noise-sensitive applications, RF mixers, PLLs, VCOs, communications and infrastructure, cable DAC drivers, and backhaul and microwave links.
- What are the package options for the ADM7150?
The ADM7150 is available in 8-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
- How stable is the ADM7150 with different capacitors?
The ADM7150 is stable with a 10 µF ceramic output capacitor.
- What is the quiescent current of the ADM7150 at no load?
The quiescent current of the ADM7150 at no load is 4.3 mA.
