Overview
The ADP7142AUJZ-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, making it ideal for regulating high-performance analog and mixed-signal circuits. The ADP7142 features an advanced proprietary architecture that ensures high power supply rejection, low noise, and excellent line and load transient response. It is available in a TSOT-23-5 package, which is compact and suitable for various applications requiring precise voltage regulation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 40 V |
| Maximum Output Current | 200 mA |
| Output Voltage Options | 15 fixed options (1.2 V to 5.0 V), adjustable with external voltage divider |
| Output Noise | 11 µV rms (for fixed output voltages ≤ 5 V) |
| Power Supply Rejection Ratio (PSRR) | 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz (VOUT ≤ 5 V, VIN = 7 V) |
| Initial Accuracy | ±0.8% |
| Dropout Voltage | Varies with load current (see datasheet for details) |
| Package Type | TSOT-23-5 |
Key Features
- Low noise: 11 µV rms independent of fixed output voltage
- High power supply rejection ratio (PSRR): up to 88 dB at 10 kHz
- Excellent line and load transient response with a small 2.2 µF ceramic output capacitor
- Adjustable output voltage using an external voltage divider
- Low dropout voltage, making it suitable for high-performance analog and mixed-signal circuits
- Compact TSOT-23-5 package
Applications
- Communications and infrastructure
- Medical and healthcare devices
- Industrial and instrumentation systems
- Automotive systems
- Precision amplifiers and VCO VTUNE control
Q & A
- What is the input voltage range of the ADP7142? The input voltage range is from 2.7 V to 40 V.
- What is the maximum output current of the ADP7142? The maximum output current is 200 mA.
- What are the available output voltage options for the ADP7142? The ADP7142 is available in 15 fixed output voltage options ranging from 1.2 V to 5.0 V, and it can be adjusted to higher voltages using an external voltage divider.
- What is the output noise of the ADP7142? The output noise is 11 µV rms for fixed output voltages ≤ 5 V.
- What is the power supply rejection ratio (PSRR) of the ADP7142? The PSRR is up to 88 dB at 10 kHz, 68 dB at 100 kHz, and 50 dB at 1 MHz (VOUT ≤ 5 V, VIN = 7 V).
- How accurate is the ADP7142 in terms of output voltage? The initial accuracy is ±0.8%.
- What package type is the ADP7142 available in? The ADP7142 is available in a TSOT-23-5 package.
- What are some typical applications of the ADP7142? Typical applications include communications and infrastructure, medical and healthcare devices, industrial and instrumentation systems, automotive systems, and precision amplifiers.
- Can the output voltage of the ADP7142 be adjusted? Yes, the output voltage can be adjusted using an external voltage divider.
- What is the dropout voltage of the ADP7142? The dropout voltage varies with the load current; see the datasheet for detailed information.
