Overview
The ADP7102ACPZ-1.8-R7 is a CMOS, low dropout linear regulator (LDO) produced by Analog Devices Inc. This regulator operates from an input voltage range of 3.3 V to 20 V and provides up to 300 mA of output current. It is designed for high-performance analog and mixed-signal circuits, offering excellent line and load transient response with a small 1 μF ceramic output capacitor. The ADP7102 is available in both fixed and adjustable output voltage versions, with the ADP7102ACPZ-1.8-R7 specifically providing a fixed output voltage of 1.8 V. The regulator features a compact 8-lead, 3 mm × 3 mm LFCSP package, which offers excellent thermal performance and a low profile footprint.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.3 V to 20 V | V |
| Maximum Output Current | 300 mA | mA |
| Output Voltage (Fixed) | 1.8 V | V |
| Low Dropout Voltage | 200 mV at 300 mA load | mV |
| Noise Voltage | 15 μV rms | μV |
| Power Supply Rejection Ratio (PSRR) | 60 dB at 10 kHz, VOUT = 3.3 V | dB |
| Initial Accuracy | ±0.8% | % |
| Package Type | 8-lead, 3 mm × 3 mm LFCSP | - |
| Thermal Shutdown Threshold | 150°C | °C |
Key Features
- High Input Voltage Range: Operates from 3.3 V to 20 V, making it suitable for a wide range of applications.
- Low Dropout Voltage: 200 mV at 300 mA load, ensuring minimal voltage drop and efficient power regulation.
- Low Noise: 15 μV rms noise voltage, independent of the output voltage, which is crucial for high-performance analog circuits.
- High PSRR: 60 dB at 10 kHz, VOUT = 3.3 V, providing excellent power supply rejection.
- Reverse Current Protection: Protects the regulator from reverse current flow.
- Digital Power-Good Output: Allows power system monitors to check the health of the output voltage.
- User Programmable Precision Undervoltage Lockout (UVLO): Facilitates sequencing of multiple power supplies.
- Compact Package: Available in 8-lead, 3 mm × 3 mm LFCSP, offering excellent thermal performance and a low profile footprint.
Applications
- High-Performance Analog and Mixed-Signal Circuits: Ideal for regulating power in high-performance analog and mixed-signal circuits operating from 19 V to 1.22 V rails.
- Industrial and Medical Devices: Suitable for use in industrial and medical devices that require stable and low-noise power supply.
- Communication Equipment: Can be used in communication equipment where high PSRR and low noise are critical.
- Automotive Systems: Applicable in automotive systems that require robust and reliable power regulation.
Q & A
- What is the input voltage range of the ADP7102ACPZ-1.8-R7?
The input voltage range is from 3.3 V to 20 V.
- What is the maximum output current of the ADP7102ACPZ-1.8-R7?
The maximum output current is up to 300 mA.
- What is the fixed output voltage of the ADP7102ACPZ-1.8-R7?
The fixed output voltage is 1.8 V.
- What is the low dropout voltage of the ADP7102?
The low dropout voltage is 200 mV at 300 mA load.
- What is the noise voltage of the ADP7102?
The noise voltage is 15 μV rms.
- What is the PSRR of the ADP7102 at 10 kHz?
The PSRR is 60 dB at 10 kHz, VOUT = 3.3 V.
- Does the ADP7102 have a digital power-good output?
Yes, it has a digital power-good output to monitor the health of the output voltage.
- What is the thermal shutdown threshold of the ADP7102?
The thermal shutdown threshold is 150°C.
- In what package is the ADP7102ACPZ-1.8-R7 available?
It is available in an 8-lead, 3 mm × 3 mm LFCSP package.
- What is the initial accuracy of the ADP7102?
The initial accuracy is ±0.8%.
