Overview
The ADP7159ARDZ-02-R7 is an adjustable linear regulator produced by Analog Devices Inc. This device operates from an input voltage range of 2.3 V to 5.5 V and provides up to 2 A of output current. The ADP7159 is designed with an advanced proprietary architecture that offers high power supply rejection ratio (PSRR) and ultralow noise, making it suitable for noise-sensitive applications. It is available in various packages, including a 10-lead, 3 mm × 3 mm LFCSP and an 8-lead SOIC package, ensuring a compact and thermally efficient solution.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 to 5.5 | V |
| Adjustable Output Voltage Range | 1.2 to 3.3 | V |
| Maximum Load Current | 2 | A |
| Total Integrated Noise (100 Hz to 100 kHz) | 0.9 | μV rms |
| Noise Spectral Density (10 kHz to 1 MHz) | 1.7 | nV/√Hz |
| Power Supply Rejection Ratio (PSRR) at 1 kHz to 100 kHz | 61 dB (for ADP7159-02 model) | dB |
| Dropout Voltage at IOUT = 2 A, VOUT = 3.3 V | 200 mV typical | mV |
| Initial Accuracy at ILOAD = 10 mA, TA = 25°C | ±0.6% | % |
| Accuracy over Line, Load, and Temperature | ±1.5% | % |
| Quiescent Current (IGND) at 0 μA | 4.0 mA typical | mA |
| Shutdown Current | 0.2 μA typical | μA |
| Output Capacitor Stability | Stable with a 10 μF ceramic output capacitor | - |
Key Features
- High power supply rejection ratio (PSRR) up to 61 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 up to 2 A.
- Low dropout voltage of 200 mV typical at IOUT = 2 A, VOUT = 3.3 V.
- Precision enable feature.
- Compact packaging options including 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
- Supported by ADIsimPower tool for design and simulation).
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 load current the ADP7159 can provide?
The ADP7159 can provide up to 2 A of output current).
- What are the typical noise levels 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 61 dB from 1 kHz to 100 kHz and 45 dB at 1 MHz for the ADP7159-02 model).
- What is the dropout voltage of the ADP7159?
The dropout voltage of the ADP7159 is typically 200 mV at IOUT = 2 A, VOUT = 3.3 V).
- What are the packaging options for the ADP7159?
The ADP7159 is available in 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages).
- Is the ADP7159 stable with ceramic output capacitors?
Yes, the ADP7159 is stable with a 10 μF ceramic output capacitor).
- What are some typical applications for the ADP7159?
The ADP7159 is used in noise-sensitive applications such as PLLs, VCOs, and communications infrastructure including backhaul and microwave links).
- Does the ADP7159 support any design tools?
Yes, the ADP7159 is supported by the ADIsimPower tool for design and simulation).
- What is the quiescent current of the ADP7159?
The quiescent current (IGND) of the ADP7159 is typically 4.0 mA at 0 μA and 9.0 mA at 2 A).
