Overview
The ADP7142ARDZ-5.0 from Analog Devices Inc. is a CMOS, low dropout (LDO) linear regulator designed to operate from a wide input voltage range of 2.7V to 40V. This regulator provides up to 200mA of output current, making it ideal for regulating high-performance analog and mixed signal circuits operating from 39V down to 1.2V rails. The device utilizes an advanced proprietary architecture to achieve high power supply rejection, low noise, and excellent line and load transient response with a small 2.2µF ceramic output capacitor.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7V to 40V |
| Output Current | Up to 200mA |
| Fixed Output Voltage | 5V |
| Noise | 11µVrms |
| Initial Accuracy | ±0.8% |
| Accuracy over Line, Load, and Temperature | −1.2% to +1.5% (TJ=−40 to +85°C), ±1.8% (TJ= −40 to +125°C) |
| Quiescent Current (IGND) | 50μA (typical) with no load |
| Shutdown Current | 1.8μA at VIN = 6V, 3.0μA at VIN = 40V |
| Output Capacitor | Stable with a small 2.2µF ceramic output capacitor |
| Dropout Voltage | 200mV typical at OUT = 200mA |
| Temperature Range | -40°C to +125°C |
| Package | 8-lead SOIC w/ EP |
Key Features
- High power supply rejection ratio (PSRR) and low noise.
- Excellent line and load transient response.
- Adjustable output voltage above the initial set point using an external feedback divider.
- Low quiescent current and low shutdown current.
- Stable operation with a small 2.2µF ceramic output capacitor.
- RoHS compliant (lead free).
Applications
- Noise-sensitive applications such as ADC, DAC circuits, precision amplifiers, and power for VCO VTUNE control.
- Communications and infrastructure.
- Medical and healthcare.
- Industrial and instrumentation.
Q & A
- What is the input voltage range of the ADP7142ARDZ-5.0?
The input voltage range is from 2.7V to 40V.
- What is the maximum output current of the ADP7142ARDZ-5.0?
The maximum output current is up to 200mA.
- What is the fixed output voltage of the ADP7142ARDZ-5.0?
The fixed output voltage is 5V.
- How much noise does the ADP7142ARDZ-5.0 generate?
The noise is 11µVrms.
- What is the initial accuracy of the ADP7142ARDZ-5.0?
The initial accuracy is ±0.8%.
- What is the quiescent current of the ADP7142ARDZ-5.0 with no load?
The quiescent current is 50μA (typical) with no load.
- What is the shutdown current of the ADP7142ARDZ-5.0?
The shutdown current is 1.8μA at VIN = 6V, 3.0μA at VIN = 40V.
- What type of output capacitor is recommended for the ADP7142ARDZ-5.0?
A small 2.2µF ceramic output capacitor is recommended.
- What is the temperature range of the ADP7142ARDZ-5.0?
The temperature range is from -40°C to +125°C.
- In what package is the ADP7142ARDZ-5.0 available?
The ADP7142ARDZ-5.0 is available in an 8-lead SOIC w/ EP package.
