Overview
The ADP7142ARDZ-5.0-R7 is a CMOS, low dropout (LDO) linear regulator produced by Analog Devices Inc. This device 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 the regulation of high-performance analog and mixed-signal circuits, offering high power supply rejection, low noise, and excellent line and load transient response. The regulator is available in various fixed output voltage options, with the ADP7142ARDZ-5.0-R7 specifically providing a fixed output voltage of 5 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 40 | V |
| Maximum Output Current | 200 | mA |
| Output Voltage (Fixed) | 5 | V |
| Initial Accuracy | ±0.8% | |
| Output Noise (RMS) | 11 µV | |
| Power Supply Rejection Ratio (PSRR) | 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz | |
| Dropout Voltage | 200 mV (typical at 200 mA) | |
| Quiescent Current (IGND) | 50 µA (typical) with no load | |
| Shutdown Current | 1.8 µA at VIN = 6 V, 3.0 µA at VIN = 40 V | |
| Operating Temperature Range | -40°C to +125°C | |
| Package Type | NSOIC-EP-8 |
Key Features
- Low noise of 11 µV RMS independent of the fixed output voltage.
- High power supply rejection ratio (PSRR) of 88 dB at 10 kHz, 68 dB at 100 kHz, and 50 dB at 1 MHz.
- Excellent line and load transient response with a small 2.2 µF ceramic output capacitor.
- Initial accuracy of ±0.8% and accuracy over line, load, and temperature.
- Low quiescent current and low shutdown current.
- User-programmable soft start with an external capacitor.
- Short-circuit and thermal protection.
- Adjustable output voltage using an external voltage divider.
Applications
- Communications and infrastructure.
- Medical and healthcare devices.
- Industrial and instrumentation systems.
- Automotive systems.
- Precision amplifiers and power for VCO VTUNE control.
Q & A
- What is the input voltage range of the ADP7142ARDZ-5.0-R7?
The input voltage range is from 2.7 V to 40 V.
- What is the maximum output current of the ADP7142ARDZ-5.0-R7?
The maximum output current is 200 mA.
- What is the fixed output voltage of the ADP7142ARDZ-5.0-R7?
The fixed output voltage is 5 V.
- How much noise does the ADP7142ARDZ-5.0-R7 produce?
The output noise is 11 µV RMS.
- What is the power supply rejection ratio (PSRR) of the ADP7142ARDZ-5.0-R7?
The PSRR is 88 dB at 10 kHz, 68 dB at 100 kHz, and 50 dB at 1 MHz.
- Can the output voltage of the ADP7142ARDZ-5.0-R7 be adjusted?
Yes, the output voltage can be adjusted using an external voltage divider.
- What is the typical quiescent current of the ADP7142ARDZ-5.0-R7?
The typical quiescent current is 50 µA with no load.
- What is the shutdown current of the ADP7142ARDZ-5.0-R7?
The shutdown current is 1.8 µA at VIN = 6 V and 3.0 µA at VIN = 40 V.
- What is the operating temperature range of the ADP7142ARDZ-5.0-R7?
The operating temperature range is from -40°C to +125°C.
- In what package is the ADP7142ARDZ-5.0-R7 available?
The device is available in an NSOIC-EP-8 package.
