Overview
The ADM7172ACPZ-4.2-R7 is a high-performance, low dropout linear regulator (LDO) produced by Analog Devices Inc. This CMOS LDO operates from an input voltage range of 2.3 V to 6.5 V and provides a fixed output voltage of 4.2 V with up to 2 A of output current. It is designed for applications requiring high current delivery in a compact and thermally efficient package. The regulator features low quiescent current, soft start, and comprehensive protection mechanisms, making it ideal for use in portable equipment and other power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.3 V to 6.5 V |
| Output Voltage | 4.2 V (Fixed) |
| Output Current | Up to 2 A |
| Quiescent Current (Iq) | Typical 4.8 mA at full load |
| Shutdown Current | Typical 0.25 μA at room temperature |
| Operating Temperature | -40°C to 125°C |
| Package Type | 8-LFCSP-WD (3x3 mm) |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Protection Features | Over Current, Over Temperature |
| Control Features | Enable, Soft Start |
Key Features
- Low Dropout Voltage: The ADM7172 offers a low dropout voltage, ensuring efficient voltage regulation even at low input voltages.
- High Output Current: Capable of delivering up to 2 A of output current, making it suitable for high-current applications.
- Low Quiescent Current: Typical quiescent current of 4.8 mA at full load, ideal for power-sensitive and portable applications.
- Soft Start and Enable Functionality: Features an internal soft start to limit inrush current and an enable pin for turning the output on and off.
- Comprehensive Protection: Includes overcurrent protection, thermal overload protection, and undervoltage lockout to ensure reliable operation.
- Compact Package: Available in an 8-lead, 3 mm × 3 mm LFCSP package, providing excellent thermal performance in a small footprint.
Applications
The ADM7172ACPZ-4.2-R7 is suitable for a variety of applications, including:
- Portable Equipment: Due to its low quiescent current and high efficiency, it is ideal for battery-powered devices.
- Industrial Control Systems: Can be used in industrial control systems where reliable and efficient power regulation is crucial.
- Medical Devices: Suitable for medical devices that require stable and efficient power supply.
- Aerospace and Defense: Can be used in aerospace and defense applications where high reliability and performance are essential.
Q & A
- What is the input voltage range of the ADM7172ACPZ-4.2-R7?
The input voltage range is from 2.3 V to 6.5 V. - What is the fixed output voltage of the ADM7172ACPZ-4.2-R7?
The fixed output voltage is 4.2 V. - What is the maximum output current of the ADM7172ACPZ-4.2-R7?
The maximum output current is up to 2 A. - What is the typical quiescent current of the ADM7172ACPZ-4.2-R7 at full load?
The typical quiescent current is 4.8 mA at full load. - Does the ADM7172ACPZ-4.2-R7 have overcurrent protection?
Yes, it includes overcurrent protection. - What is the operating temperature range of the ADM7172ACPZ-4.2-R7?
The operating temperature range is -40°C to 125°C. - What package type is the ADM7172ACPZ-4.2-R7 available in?
It is available in an 8-LFCSP-WD (3x3 mm) package. - Does the ADM7172ACPZ-4.2-R7 have a soft start feature?
Yes, it features an internal soft start to limit inrush current. - Can the enable threshold of the ADM7172ACPZ-4.2-R7 be programmed?
Yes, the enable threshold can be programmed using external resistors. - What is the moisture sensitivity level (MSL) of the ADM7172ACPZ-4.2-R7?
The MSL is 3 (168 Hours).
