Overview
The ADP7104ARDZ-1.5-R7, produced by Analog Devices Inc., is a CMOS, low dropout linear regulator (LDO) designed to operate within a wide input voltage range of 3.3 V to 20 V. This regulator provides up to 500 mA of output current and is particularly suited for high-performance analog and mixed-signal circuits. It features a fixed output voltage of 1.5 V and is available in an 8-lead SOIC package, offering a compact solution with excellent thermal performance.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Voltage Range | VIN | 3.3 | 20 | V | ||
| Output Voltage | VOUT | 1.5 | 1.5 | V | ||
| Maximum Output Current | IOUT | 500 | mA | |||
| 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 | ||
| Package Type | 8-lead SOIC |
Key Features
- Low dropout voltage, making it suitable for high-performance analog and mixed-signal circuits.
- Low noise output of 15 µV rms, independent of the output voltage.
- High power supply rejection ratio (PSRR) of 60 dB at 10 kHz.
- Power-good indicator for monitoring the output voltage health.
- User-programmable precision undervoltage lockout (UVLO) function for sequencing multiple power supplies.
- Compact 8-lead SOIC package with excellent thermal performance.
Applications
- Regulation for noise-sensitive applications such as ADC, DAC circuits, precision amplifiers, high-frequency oscillators, clocks, and PLLs.
- Communications and infrastructure systems.
- Medical and healthcare devices.
- Industrial and instrumentation equipment.
Q & A
- What is the input voltage range of the ADP7104ARDZ-1.5-R7?
The input voltage range is from 3.3 V to 20 V. - What is the maximum output current of the ADP7104ARDZ-1.5-R7?
The maximum output current is up to 500 mA. - What is the output noise voltage of the ADP7104ARDZ-1.5-R7?
The output noise voltage is 15 µV rms. - What is the power supply rejection ratio (PSRR) of the ADP7104ARDZ-1.5-R7?
The PSRR is 60 dB at 10 kHz for VOUT = 3.3 V. - Does the ADP7104ARDZ-1.5-R7 have a power-good indicator?
Yes, it includes a digital power-good output to monitor the health of the output voltage. - What package types are available for the ADP7104ARDZ-1.5-R7?
The regulator is available in an 8-lead SOIC package. - What are some typical applications of the ADP7104ARDZ-1.5-R7?
It is used in noise-sensitive applications, communications, medical devices, and industrial equipment. - How does the ADP7104ARDZ-1.5-R7 handle thermal issues?
The regulator features thermal shutdown with a threshold of 150°C and hysteresis of 15°C. - Can the undervoltage lockout (UVLO) be programmed?
Yes, the UVLO function is user-programmable for sequencing multiple power supplies. - What is the recommended capacitor for the input and output of the ADP7104ARDZ-1.5-R7?
A 1 µF or greater ceramic capacitor is recommended for both input and output.
