Overview
The ADP7142ARDZ-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 high power supply rejection, low noise, and excellent line and load transient response. The device is available in various fixed output voltage options, ranging from 1.2 V to 5.0 V, and can be adjusted to higher voltages using an external voltage divider.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 40 V |
| Maximum Output Current | 200 mA |
| Output Voltage Options | Fixed: 1.2 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V; Adjustable: 1.2 V to VIN - VDO |
| Dropout Voltage | 200 mV |
| Quiescent Current | 180 µA (typical) |
| Output Noise | 11 µV rms (for fixed options ≤ 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) |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 8-Pin SOIC N EP |
| Mounting Type | Surface Mount |
| Lead Shape | Gull-wing |
Key Features
- High input voltage range: 2.7 V to 40 V
- Low dropout voltage: 200 mV
- Low noise: 11 µV rms for fixed output voltages ≤ 5 V
- 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
- Low quiescent current: 180 µA (typical)
- Adjustable output voltage using an external voltage divider
- User-programmable soft start with an external capacitor
- Current limit and thermal overload protection
Applications
- Precision amplifiers and power for VCO VTUNE control
- Communications and infrastructure
- Medical and healthcare devices
- Industrial and instrumentation equipment
- Portable equipment due to low quiescent current
Q & A
- What is the input voltage range of the ADP7142ARDZ-R7? The input voltage range is from 2.7 V to 40 V.
- What is the maximum output current of the ADP7142ARDZ-R7? The maximum output current is 200 mA.
- What are the available fixed output voltage options for the ADP7142ARDZ-R7? The fixed output voltage options are 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V.
- Can the output voltage of the ADP7142ARDZ-R7 be adjusted? Yes, the output voltage can be adjusted using an external voltage divider.
- What is the quiescent current of the ADP7142ARDZ-R7? The quiescent current is 180 µA (typical).
- What is the dropout voltage of the ADP7142ARDZ-R7? The dropout voltage is 200 mV.
- What is the power supply rejection ratio (PSRR) of the ADP7142ARDZ-R7? 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).
- What is the operating temperature range of the ADP7142ARDZ-R7? The operating temperature range is from -40°C to 125°C.
- What type of package does the ADP7142ARDZ-R7 come in? The ADP7142ARDZ-R7 comes in an 8-Pin SOIC N EP package.
- Does the ADP7142ARDZ-R7 have built-in protection features? Yes, it has current limit and thermal overload protection.
