Overview
The ADP7159ACPZ-02-R7 is an adjustable linear regulator produced by Analog Devices Inc. This device operates within a voltage range of 2.3 V to 5.5 V and is capable of providing up to 2 A of output current. It is designed to offer high power supply rejection ratio (PSRR) and ultralow noise, making it suitable for noise-sensitive applications. The ADP7159 features an advanced proprietary architecture that ensures excellent line and load transient response with a minimal 10 μF ceramic output capacitor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 V to 5.5 V | V |
| Output Voltage Range | 1.2 V to 3.3 V | V |
| Maximum Load Current | 2 A | A |
| Noise (Total Integrated) | 0.9 μV rms (100 Hz to 100 kHz), 1.6 μV rms (10 Hz to 100 kHz) | μV rms |
| Noise Spectral Density | 1.7 nV/√Hz (10 kHz to 1 MHz) | nV/√Hz |
| Power Supply Rejection Ratio (PSRR) | 68 dB (1 kHz to 100 kHz), 45 dB (1 MHz) | dB |
| Dropout Voltage | 200 mV typical at IOUT = 2 A, VOUT = 3.3 V | mV |
| Initial Accuracy | ±0.6% at ILOAD = 10 mA, TA = 25°C | % |
| Accuracy over Line, Load, and Temperature | ±1.5% | % |
| Quiescent Current (IGND) | 4.0 mA typical at 0 μA, 9.0 mA typical at 2 A | mA |
| Shutdown Current | 0.2 μA typical | μA |
| Output Capacitor | 10 μF ceramic | μF |
| Package | 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC | - |
Key Features
- High power supply rejection ratio (PSRR) of up to 68 dB from 1 kHz to 100 kHz and 45 dB at 1 MHz.
- Ultralow noise with 0.9 μV rms total integrated noise from 100 Hz to 100 kHz and 1.7 nV/√Hz noise spectral density from 10 kHz to 1 MHz.
- Adjustable output voltage range from 1.2 V to 3.3 V.
- Maximum load current of 2 A.
- Low dropout voltage of 200 mV typical at IOUT = 2 A, VOUT = 3.3 V.
- High initial accuracy of ±0.6% at ILOAD = 10 mA, TA = 25°C.
- Low quiescent current of 4.0 mA typical at 0 μA and 9.0 mA typical at 2 A.
- Low shutdown current of 0.2 μA typical.
- Compact 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
- Precision enable feature supported by ADIsimPower tool.
Applications
- Noise-sensitive applications such as phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs.
- Communications and infrastructure, including backhaul and microwave links.
Q & A
- What is the input voltage range of the ADP7159?
The input voltage range of the ADP7159 is from 2.3 V to 5.5 V.
- What is the maximum output current of the ADP7159?
The maximum output current of the ADP7159 is 2 A.
- What is the output voltage range of the ADP7159?
The output voltage range of the ADP7159 is from 1.2 V to 3.3 V.
- What is the noise performance of the ADP7159?
The ADP7159 has a total integrated noise of 0.9 μV rms from 100 Hz to 100 kHz and 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 ADP7159?
The PSRR of the ADP7159 is up to 68 dB from 1 kHz to 100 kHz and 45 dB at 1 MHz.
- What is the typical dropout voltage of the ADP7159?
The typical dropout voltage of the ADP7159 is 200 mV at IOUT = 2 A, VOUT = 3.3 V.
- What is the initial accuracy of the ADP7159?
The initial accuracy of the ADP7159 is ±0.6% at ILOAD = 10 mA, TA = 25°C.
- What is the quiescent current of the ADP7159?
The quiescent current of the ADP7159 is 4.0 mA typical at 0 μA and 9.0 mA typical at 2 A.
- What are the package options for the ADP7159?
The ADP7159 is available in 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
- What are some typical applications for the ADP7159?
The ADP7159 is typically used in noise-sensitive applications such as PLLs, VCOs, and communications infrastructure including backhaul and microwave links.
