Overview
The ADP7104ACPZ-3.3-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 excellent power supply rejection, low noise, and robust line and load transient response. The device is available in both fixed and adjustable output voltage versions, with the fixed version of the ADP7104ACPZ-3.3-R7 specifically providing a 3.3 V output voltage.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | 3.3 | 20 | V | ||
| Output Current | IOUT | 500 | mA | |||
| Output Voltage (Fixed Version) | VOUT | 3.3 | 3.3 | V | ||
| Output Noise Voltage | 15 | μV rms | ||||
| Power Supply Rejection Ratio (PSRR) | 10 kHz, VOUT = 3.3 V | 60 | dB | |||
| Thermal Shutdown Threshold | TSSD | TJ rising | 150 | °C | ||
| Operating Junction Temperature Range | TJ | -40 | 125 | °C | ||
| Package Type | 8-lead LFCSP, 8-lead SOIC |
Key Features
- High input voltage range: 3.3 V to 20 V
- Low dropout voltage and high output current up to 500 mA
- Low noise: 15 μV rms for fixed output versions
- Excellent power supply rejection ratio (PSRR) of 60 dB at 10 kHz
- Power-good indicator for monitoring output voltage health
- User-programmable precision undervoltage lockout (UVLO) function
- Compact 8-lead LFCSP and 8-lead SOIC packages
- High thermal performance with a small 1 μF ceramic output capacitor
Applications
- Regulation for noise-sensitive applications: ADC, DAC circuits, precision amplifiers, high-frequency oscillators, clocks, and PLLs
- Communications and infrastructure
- Medical and healthcare
- Industrial and instrumentation
Q & A
- What is the input voltage range of the ADP7104ACPZ-3.3-R7? The input voltage range is from 3.3 V to 20 V.
- What is the maximum output current of the ADP7104ACPZ-3.3-R7? The maximum output current is up to 500 mA.
- What is the output noise voltage of the ADP7104ACPZ-3.3-R7? The output noise voltage is 15 μV rms.
- What is the power supply rejection ratio (PSRR) of the ADP7104ACPZ-3.3-R7? The PSRR is 60 dB at 10 kHz for VOUT = 3.3 V.
- Does the ADP7104ACPZ-3.3-R7 have a power-good indicator? Yes, it includes a digital power-good output to monitor the health of the output voltage.
- What are the package options for the ADP7104ACPZ-3.3-R7? It is available in 8-lead LFCSP and 8-lead SOIC packages.
- What is the thermal shutdown threshold of the ADP7104ACPZ-3.3-R7? The thermal shutdown threshold is 150°C.
- Can the ADP7104ACPZ-3.3-R7 be used in noise-sensitive applications? Yes, it is suitable for noise-sensitive applications such as ADC, DAC circuits, and precision amplifiers.
- Is the ADP7104ACPZ-3.3-R7 available in adjustable output voltage versions? Yes, although the specific part number ADP7104ACPZ-3.3-R7 is for a fixed 3.3 V output, the ADP7104 series includes adjustable versions.
- What type of capacitors are recommended for use with the ADP7104ACPZ-3.3-R7? X7R and X5R type capacitors are recommended; Y5V and Z5U capacitors are not recommended.
