Overview
The ADP7104ARDZ-1.8-R7 is a CMOS, low dropout linear regulator (LDO) produced by Analog Devices Inc. This regulator operates from an input voltage range of 3.3 V to 20 V and provides up to 500 mA of output current. It is designed for high-performance analog and mixed-signal circuits, offering low noise, high power supply rejection ratio (PSRR), and excellent line and load transient response. The ADP7104 is available in various fixed output voltage options and an adjustable version, making it versatile for different applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 3.3 V | - | 20 V | V |
| Output Current | - | - | 500 mA | A |
| Output Voltage (Fixed) | 1.8 V | - | - | V |
| Output Noise Voltage | - | 15 µV rms | - | V |
| PSRR at 10 kHz | - | 60 dB | - | dB |
| Thermal Shutdown Threshold | - | 150 °C | - | °C |
| Package Type | - | - | 8-lead SOIC | - |
| Quiescent Current | - | 900 µA ~ 1.6 mA | - | A |
Key Features
- Low dropout voltage and high PSRR for stable output voltage.
- Low noise output of 15 µV rms, independent of the output voltage.
- Digital power-good output for monitoring the health of the output voltage.
- User-programmable precision undervoltage lockout (UVLO) for sequencing multiple power supplies.
- Compact 8-lead LFCSP and 8-lead SOIC packages with excellent thermal performance.
- Enable and power-good control features.
Applications
- Regulation for noise-sensitive applications such as ADC, DAC circuits, precision amplifiers, high-frequency oscillators, clocks, and PLLs.
- Communications and infrastructure.
- Medical and healthcare devices.
- Industrial and instrumentation applications.
Q & A
- What is the input voltage range of the ADP7104ARDZ-1.8-R7? The input voltage range is from 3.3 V to 20 V.
- What is the maximum output current of the ADP7104ARDZ-1.8-R7? The maximum output current is 500 mA.
- What is the output noise voltage of the ADP7104ARDZ-1.8-R7? The output noise voltage is 15 µV rms.
- What is the PSRR of the ADP7104ARDZ-1.8-R7 at 10 kHz? The PSRR is 60 dB at 10 kHz.
- What are the package options for the ADP7104ARDZ-1.8-R7? The package options are 8-lead LFCSP and 8-lead SOIC.
- Does the ADP7104ARDZ-1.8-R7 have a power-good indicator? Yes, it has a digital power-good output.
- Can the undervoltage lockout (UVLO) be programmed? Yes, the UVLO is user-programmable.
- What are some typical applications of the ADP7104ARDZ-1.8-R7? Typical applications include noise-sensitive analog circuits, communications, medical devices, and industrial instrumentation.
- What is the thermal shutdown threshold of the ADP7104ARDZ-1.8-R7? The thermal shutdown threshold is 150 °C.
- Is the ADP7104ARDZ-1.8-R7 RoHS compliant? Yes, it is RoHS compliant.
