Overview
The ADP7142ACPZN5.0-R7 is a CMOS, low dropout (LDO) linear regulator produced by Analog Devices Inc. This regulator operates from an input voltage range of 2.7 V to 40 V and provides up to 200 mA of output current. It is designed for high-performance analog and mixed-signal circuits, offering excellent line and load transient response with a small 2.2 µF ceramic output capacitor. The device is available in various fixed output voltage options, with the specific model ADP7142ACPZN5.0-R7 providing a fixed output voltage of 5.0 V. The regulator features low noise, high power supply rejection ratio (PSRR), and user-programmable soft start capabilities, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 40 | V |
| Maximum Output Current | 200 | mA |
| Output Voltage (Fixed) | 5.0 | V |
| Output Voltage Accuracy | ±0.8% | - |
| Output Noise (RMS) | 11 µV | - |
| PSRR at 10 kHz | 88 dB | - |
| PSRR at 100 kHz | 68 dB | - |
| PSRR at 1 MHz | 50 dB | - |
| Package Type | 6-lead LFCSP, 5-lead TSOT, 8-lead SOIC | - |
Key Features
- Low noise: 11 µV rms independent of fixed output voltage
- High PSRR: 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz
- User-programmable soft start with an external capacitor
- Adjustable output voltage using an external feedback divider
- Compact package options: 6-lead LFCSP, 5-lead TSOT, 8-lead SOIC
- Excellent thermal performance and low profile footprint
Applications
- Communications and infrastructure
- Medical and healthcare devices
- Industrial and instrumentation systems
- Automotive systems
- Analog and mixed-signal circuits requiring high performance and low noise
Q & A
- What is the input voltage range of the ADP7142?
The input voltage range of the ADP7142 is from 2.7 V to 40 V.
- What is the maximum output current of the ADP7142?
The maximum output current of the ADP7142 is 200 mA.
- What is the fixed output voltage of the ADP7142ACPZN5.0-R7 model?
The fixed output voltage of the ADP7142ACPZN5.0-R7 model is 5.0 V.
- How can the output voltage be adjusted?
The output voltage can be adjusted using an external feedback divider.
- What is the noise level of the ADP7142?
The noise level of the ADP7142 is 11 µV rms.
- What are the package options available for the ADP7142?
The package options available are 6-lead LFCSP, 5-lead TSOT, and 8-lead SOIC.
- What is the PSRR of the ADP7142 at different frequencies?
The PSRR is 88 dB at 10 kHz, 68 dB at 100 kHz, and 50 dB at 1 MHz.
- Does the ADP7142 support user-programmable soft start?
Yes, the ADP7142 supports user-programmable soft start with an external capacitor.
- In which applications is the ADP7142 commonly used?
The ADP7142 is commonly used in communications, medical, industrial, automotive, and high-performance analog and mixed-signal circuits.
- What is the thermal performance of the ADP7142?
The ADP7142 offers excellent thermal performance, especially in the 6-lead LFCSP package, which provides a low profile footprint.
