Overview
The ADP7159ARDZ-03-R7 is an adjustable linear regulator from Analog Devices Inc., designed to operate within a wide input voltage range and provide high current output with excellent noise and power supply rejection ratio (PSRR) performance. This regulator is particularly suited for noise-sensitive applications, offering a compact solution in 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 5.5 V |
| Output Voltage Range | 1.2 V to 3.3 V |
| Maximum Load Current | 2 A |
| Noise (Total Integrated) | 0.9 μV rms (100 Hz to 100 kHz), 1.6 μV rms (10 Hz to 100 kHz) |
| Noise Spectral Density | 1.7 nV/√Hz (10 kHz to 1 MHz) |
| Power Supply Rejection Ratio (PSRR) | 68 dB (1 kHz to 100 kHz), 45 dB (1 MHz) |
| Dropout Voltage | 200 mV typical at IOUT = 2 A, VOUT = 3.3 V |
| Initial Accuracy | ±0.6% at ILOAD = 10 mA |
| 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 |
| Shutdown Current | 0.2 μA typical |
| Output Capacitor | Stable with a 10 μF ceramic output capacitor |
| Package | 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC |
| Operating Temperature | -40°C to 125°C |
Key Features
- High power supply rejection ratio (PSRR) and ultralow noise
- Adjustable output voltage 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
- Precision enable feature
- Compact packaging options: 10-lead LFCSP and 8-lead SOIC
- Supported by ADIsimPower tool for design and simulation
Applications
- Noise-sensitive applications: phase-locked loops (PLLs), voltage-controlled oscillators (VCOs), and PLLs with integrated VCOs
- Communications and infrastructure: backhaul and microwave links
Q & A
- What is the input voltage range of the ADP7159ARDZ-03-R7? The input voltage range is from 2.3 V to 5.5 V.
- What is the maximum load current of the ADP7159ARDZ-03-R7? The maximum load current is 2 A.
- What is the typical noise level of the ADP7159ARDZ-03-R7? The typical noise level is 0.9 μV rms from 100 Hz to 100 kHz and 1.6 μV rms from 10 Hz to 100 kHz.
- What is the power supply rejection ratio (PSRR) of the ADP7159ARDZ-03-R7? The PSRR is 68 dB from 1 kHz to 100 kHz and 45 dB at 1 MHz.
- What is the dropout voltage of the ADP7159ARDZ-03-R7? The dropout voltage is 200 mV typical at IOUT = 2 A, VOUT = 3.3 V.
- What type of output capacitor is recommended for the ADP7159ARDZ-03-R7? A 10 μF ceramic output capacitor is recommended.
- What are the available package options for the ADP7159ARDZ-03-R7? The available packages are 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC.
- What is the operating temperature range of the ADP7159ARDZ-03-R7? The operating temperature range is from -40°C to 125°C.
- Is the ADP7159ARDZ-03-R7 supported by any design tools? Yes, it is supported by the ADIsimPower tool.
- What are some typical applications for the ADP7159ARDZ-03-R7? Typical applications include noise-sensitive circuits such as PLLs, VCOs, and communications infrastructure like backhaul and microwave links.
