Overview
The ADP7156ACPZ-2.5-R7 is a high-performance, ultralow noise, linear voltage regulator from Analog Devices Inc. This regulator is designed to operate from an input voltage range of 2.3 V to 5.5 V and can deliver up to 1.2 A of output current. It is particularly suited for radio frequency (RF) applications due to its high power supply rejection ratio (PSRR) and very low noise characteristics. The device is available in compact packages, including a 10-lead, 3 mm × 3 mm LFCSP and an 8-lead SOIC, making it ideal for applications requiring a small footprint and excellent thermal performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.3 to 5.5 | V |
| Output Voltage | 2.5 (for ADP7156ACPZ-2.5-R7) | V |
| Maximum Load Current | 1.2 | A |
| Total Integrated Noise (100 Hz to 100 kHz) | 0.9 | μV rms |
| Total Integrated Noise (10 Hz to 100 kHz) | 1.6 | μV rms |
| Noise Spectral Density (10 kHz to 1 MHz) | 1.7 | nV/√Hz |
| Power Supply Rejection Ratio (PSRR) | High PSRR | - |
| Package Types | 10-lead LFCSP (3x3 mm), 8-lead SOIC | - |
| Operating Temperature Range | -40 to 125 | °C |
| Thermal Shutdown Threshold | 150 | °C |
| Thermal Shutdown Hysteresis | 15 | °C |
Key Features
- Ultralow Noise: The ADP7156 features very low 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.
- High PSRR: High power supply rejection ratio, making it suitable for RF applications.
- Compact Packages: Available in 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages, providing excellent thermal performance in a small footprint.
- Multiple Output Voltages: 16 standard output voltages available, ranging from 1.2 V to 3.3 V, with additional voltages available by special order.
- Low Shutdown Current: Typical shutdown current consumption of 0.2 μA at room temperature.
- Excellent Transient Performance: Optimized for use with 10 μF ceramic output capacitors, ensuring excellent line and load transient response.
Applications
The ADP7156ACPZ-2.5-R7 is particularly suited for radio frequency (RF) applications due to its high PSRR and ultralow noise characteristics. It is also suitable for other applications requiring low noise and high stability, such as:
- Wireless communication systems
- RF amplifiers and transceivers
- High-frequency signal processing
- Medical devices requiring low noise power supplies
- Industrial control systems
Q & A
- What is the input voltage range of the ADP7156ACPZ-2.5-R7?
The input voltage range is 2.3 V to 5.5 V.
- What is the maximum load current of the ADP7156ACPZ-2.5-R7?
The maximum load current is 1.2 A.
- What are the available output voltages for the ADP7156?
There are 16 standard output voltages available, ranging from 1.2 V to 3.3 V, with additional voltages available by special order.
- What is the noise performance of the ADP7156ACPZ-2.5-R7?
The total integrated noise is 0.9 μV rms from 100 Hz to 100 kHz and 1.7 nV/√Hz noise spectral density from 10 kHz to 1 MHz.
- What packages are available for the ADP7156ACPZ-2.5-R7?
The device is available in 10-lead, 3 mm × 3 mm LFCSP and 8-lead SOIC packages.
- What is the thermal shutdown threshold of the ADP7156ACPZ-2.5-R7?
The thermal shutdown threshold is 150°C with a hysteresis of 15°C.
- What is the typical shutdown current consumption of the ADP7156ACPZ-2.5-R7?
The typical shutdown current consumption is 0.2 μA at room temperature.
- What type of capacitors is the ADP7156ACPZ-2.5-R7 optimized for?
The device is optimized for use with 10 μF ceramic output capacitors.
- What are some typical applications for the ADP7156ACPZ-2.5-R7?
Typical applications include RF amplifiers, wireless communication systems, high-frequency signal processing, and medical devices requiring low noise power supplies.
- What is the operating temperature range of the ADP7156ACPZ-2.5-R7?
The operating temperature range is -40°C to 125°C.
