Overview
The ADP7104ACPZ-2.5-R7 is a CMOS, low dropout linear regulator (LDO) produced by Analog Devices Inc. This regulator operates within 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 high power supply rejection, low noise, and excellent line and load transient response. The device is available in both fixed and adjustable output voltage versions, with the fixed output voltage options ranging from 1.22 V to 3.3 V, and the adjustable version allowing output voltages from 1.22 V to VIN - VDO via an external feedback divider.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.3 V to 20 V | V |
| Maximum Output Current | 500 mA | mA |
| Output Voltage (Fixed) | 1.22 V to 3.3 V | V |
| Output Voltage (Adjustable) | 1.22 V to VIN - VDO | V |
| Dropout Voltage | 350 mV (typ), 550 mV (max) | mV |
| Output Noise Voltage | 15 µV rms | µV |
| PSRR at 10 kHz | 60 dB | dB |
| Quiescent Current | 165 µA | µA |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package Type | 8-lead LFCSP, 8-lead SOIC |
Key Features
- Low dropout voltage of 350 mV (typ), 550 mV (max)
- Low noise output of 15 µV rms
- High power supply rejection ratio (PSRR) of 60 dB at 10 kHz
- Low quiescent current of 165 µA
- High accuracy output voltage with ±1% tolerance
- Digital power-good indicator for monitoring output voltage health
- User-programmable precision undervoltage lockout (UVLO) function
- Compact 8-lead LFCSP and 8-lead SOIC packages
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
- Portable consumer electronics and battery-powered devices
- Automotive regulator solutions
Q & A
- What is the input voltage range of the ADP7104ACPZ-2.5-R7?
The input voltage range is from 3.3 V to 20 V.
- What is the maximum output current of the ADP7104ACPZ-2.5-R7?
The maximum output current is up to 500 mA.
- What are the available output voltage options for the ADP7104ACPZ-2.5-R7?
The device is available in fixed output voltage options ranging from 1.22 V to 3.3 V, and an adjustable version allowing output voltages from 1.22 V to VIN - VDO via an external feedback divider.
- What is the typical dropout voltage of the ADP7104ACPZ-2.5-R7?
The typical dropout voltage is 350 mV, with a maximum of 550 mV.
- What is the noise performance of the ADP7104ACPZ-2.5-R7?
The output noise voltage is 15 µV rms.
- What is the PSRR of the ADP7104ACPZ-2.5-R7 at 10 kHz?
The PSRR is 60 dB at 10 kHz.
- What are the package options for the ADP7104ACPZ-2.5-R7?
The device is available in 8-lead LFCSP and 8-lead SOIC packages.
- Does the ADP7104ACPZ-2.5-R7 have a power-good indicator?
Yes, it includes a digital power-good output for monitoring the health of the output voltage.
- What is the operating temperature range of the ADP7104ACPZ-2.5-R7?
The operating temperature range is from -40°C to +125°C.
- What are some common applications for the ADP7104ACPZ-2.5-R7?
Common applications include noise-sensitive circuits, communications, medical devices, industrial applications, and portable consumer electronics.
