Overview
The ADP7102ARDZ-R7, manufactured by Analog Devices Inc., is a CMOS, low dropout linear regulator (LDO) designed for high-performance applications. This regulator operates within an input voltage range of 3.3 V to 20 V and can provide up to 300 mA of output current. It is particularly suited for regulating high-performance analog and mixed-signal circuits, offering excellent line and load transient response with minimal external components.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 3.3 | 20 | V | |
| Maximum Output Current | 300 | mA | ||
| Output Voltage Options | Fixed: 1.22 V to 19 V Adjustable: 1.22 V to VIN - VDO | V | ||
| Low Dropout Voltage | 200 | mV at 300 mA load | ||
| Output Noise Voltage | 15 | μV rms | ||
| PSRR at 10 kHz | 60 | dB | ||
| Thermal Shutdown Threshold | 150 | °C | ||
| Package Type | 8-lead SOIC, 8-lead LFCSP |
Key Features
- High input voltage range: 3.3 V to 20 V
- Low noise: 15 μV rms for fixed output versions
- High power supply rejection ratio (PSRR): 60 dB at 10 kHz
- Low dropout voltage: 200 mV at 300 mA load
- Reverse current protection
- Digital power-good output for monitoring the health of the output voltage
- User-programmable precision undervoltage lockout (UVLO) function
- Compact packaging options: 8-lead SOIC and 8-lead LFCSP
Applications
The ADP7102ARDZ-R7 is ideal for various high-performance applications, including:
- Regulation of analog and mixed-signal circuits
- Power supply systems requiring high PSRR and low noise
- Sequencing of multiple power supplies using the programmable UVLO function
- Compact and low-profile designs due to its small footprint packages
Q & A
- What is the input voltage range of the ADP7102ARDZ-R7?
The input voltage range is from 3.3 V to 20 V. - What is the maximum output current of the ADP7102ARDZ-R7?
The maximum output current is up to 300 mA. - What are the output voltage options for the ADP7102ARDZ-R7?
The output voltage options include fixed voltages from 1.22 V to 19 V and an adjustable version ranging from 1.22 V to VIN - VDO. - What is the low dropout voltage of the ADP7102ARDZ-R7?
The low dropout voltage is 200 mV at a 300 mA load. - What is the output noise voltage of the ADP7102ARDZ-R7?
The output noise voltage is 15 μV rms. - What is the PSRR of the ADP7102ARDZ-R7 at 10 kHz?
The PSRR is 60 dB at 10 kHz. - Does the ADP7102ARDZ-R7 have thermal shutdown protection?
Yes, it has thermal shutdown protection with a threshold of 150°C. - What package types are available for the ADP7102ARDZ-R7?
The available package types are 8-lead SOIC and 8-lead LFCSP. - What is the purpose of the digital power-good output in the ADP7102ARDZ-R7?
The digital power-good output allows power system monitors to check the health of the output voltage. - Can the undervoltage lockout (UVLO) function be programmed in the ADP7102ARDZ-R7?
Yes, the UVLO function is user-programmable.
