Overview
The ADP7104ARDZ-3.0-R7 is a CMOS, low dropout linear regulator (LDO) produced by Analog Devices Inc. This high input voltage LDO operates from 3.3 V to 20 V and provides up to 500 mA of output current, making it ideal for regulating high performance analog and mixed-signal circuits. It features an advanced proprietary architecture that ensures high power supply rejection, low noise, and excellent line and load transient response with a small 1 µF ceramic output capacitor. The device is particularly suited for noise-sensitive applications and includes features such as a digital power-good output and a user-programmable precision under voltage lockout (UVLO) function.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.3 V to 20 V | V |
| Output Voltage | 3.0 V (fixed) | V |
| Maximum Output Current | 500 mA | mA |
| Dropout Voltage | 350 mV (typ at 500 mA) | mV |
| Output Noise | 15 µV rms (10 Hz to 100 kHz, VIN = 6.3 V, VOUT = 3.3 V) | µV |
| Power Supply Rejection Ratio (PSRR) | 60 dB (at 10 kHz, VIN = 4.3 V, VOUT = 3.3 V) | dB |
| Quiescent Current | 900 µA max (at IOUT = 100 µA, VIN = 10 V, TJ = −40°C to +125°C) | µA |
| Operating Temperature Range | −40°C to +125°C | °C |
| Package Type | 8-lead SOIC w/ EP |
Key Features
- High input voltage range: 3.3 V to 20 V
- Low dropout voltage: 350 mV (typ at 500 mA)
- Low noise: 15 µV rms (10 Hz to 100 kHz)
- High PSRR: 60 dB at 10 kHz
- Digital power-good output for monitoring the health of the output voltage
- User-programmable precision under voltage lockout (UVLO) function
- Reverse current protection, foldback current limit, and thermal overload protection
- Low quiescent current: 900 µA max
- Compact 8-lead SOIC package with exposed pad for improved thermal performance
Applications
- Regulation for noise-sensitive applications: 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-3.0-R7?
The input voltage range is from 3.3 V to 20 V.
- What is the maximum output current of the ADP7104ARDZ-3.0-R7?
The maximum output current is 500 mA.
- What is the typical dropout voltage of the ADP7104ARDZ-3.0-R7?
The typical dropout voltage is 350 mV at 500 mA.
- What is the output noise of the ADP7104ARDZ-3.0-R7?
The output noise is 15 µV rms from 10 Hz to 100 kHz.
- What is the PSRR performance of the ADP7104ARDZ-3.0-R7?
The PSRR performance is 60 dB at 10 kHz.
- Does the ADP7104ARDZ-3.0-R7 have a power-good indicator?
Yes, it has a digital power-good output.
- What protection features does the ADP7104ARDZ-3.0-R7 include?
It includes reverse current protection, foldback current limit, and thermal overload protection.
- What is the operating temperature range of the ADP7104ARDZ-3.0-R7?
The operating temperature range is from −40°C to +125°C.
- What package type is the ADP7104ARDZ-3.0-R7 available in?
It is available in an 8-lead SOIC package with an exposed pad.
- What applications is the ADP7104ARDZ-3.0-R7 suitable for?
It is suitable for noise-sensitive applications, communications, medical and healthcare devices, and industrial and instrumentation applications.
