Overview
The ADP1712AUJZ-3.3-R7 is a low dropout linear regulator (LDO) produced by Analog Devices Inc. This component is part of the ADP1712 series, which includes the ADP1712, ADP1713, and ADP1714. The ADP1712AUJZ-3.3-R7 is specifically designed to provide a fixed output voltage of 3.3V with a maximum output current of 300 mA. It operates from an input voltage range of 2.5V to 5.5V, making it suitable for a variety of applications, particularly in battery-operated portable equipment due to its low dropout voltage and minimal ground current consumption.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range (VIN) | 2.5 | 5.5 | V | |
| Operating Temperature Range | -40 | 125 | °C | |
| Output Voltage (VOUT) | 3.3 | V | ||
| Output Current (IOUT) | 300 | mA | ||
| Dropout Voltage (VDROPOUT) at IOUT = 300 mA | 170 | 205 | mV | |
| Ground Current (IGND) at IOUT = 100 μA | 75 | 85 | μA | |
| Shutdown Current (IGND-SD) | 0.1 | 1.0 | μA | |
| Line Regulation (∆VOUT/∆VIN) | -0.25 | 0.25 | %/V | |
| Load Regulation (∆VOUT/∆IOUT) | 0.001 | 0.004 | %/mA | |
| Package | SOT-23-5 Thin, TSOT-23-5 |
Key Features
- Low Dropout Voltage: The ADP1712AUJZ-3.3-R7 features a low dropout voltage of 170 mV at a 300 mA load, enhancing efficiency and allowing operation over a wide input voltage range.
- Low Ground Current: The regulator has a very low ground current of 75 μA when driving a 100 μA load, making it ideal for battery-operated devices.
- Fixed Output Voltage: The ADP1712AUJZ-3.3-R7 provides a fixed output voltage of 3.3V, with 16 fixed output voltage options available across the ADP1712 series.
- Adjustable Output Voltage Option: Although the ADP1712AUJZ-3.3-R7 is fixed, the ADP1712 series also includes an adjustable version that can be set between 0.8V and 5.0V using an external voltage divider.
- Soft-Start Capability: The fixed version of the ADP1712 allows an external capacitor to be connected to program the soft-start time.
- Reference Bypass Capacitor: The ADP1713 model allows a reference bypass capacitor to reduce output voltage noise and improve power supply rejection.
- Tracking Feature: The ADP1714 model includes a tracking feature that allows the output to follow an external voltage rail or reference.
- Stable Operation with Small Output Capacitors: The regulator is optimized for stable operation with small 2.2 μF ceramic output capacitors, minimizing board space.
Applications
- Battery-Operated Portable Equipment: The low dropout voltage and minimal ground current make it ideal for battery-powered devices such as handheld electronics, mobile phones, and other portable equipment.
- Wireless Devices: Suitable for wireless devices that require efficient power management to extend battery life.
- Medical Devices: Can be used in medical devices where low power consumption and stable voltage regulation are critical.
- Industrial Automation: Applicable in industrial automation systems where reliable and efficient power supply is necessary.
- Consumer Electronics: Used in various consumer electronics such as audio equipment, gaming consoles, and other devices requiring stable voltage regulation.
Q & A
- What is the input voltage range of the ADP1712AUJZ-3.3-R7?
The input voltage range is from 2.5V to 5.5V.
- What is the maximum output current of the ADP1712AUJZ-3.3-R7?
The maximum output current is 300 mA.
- What is the dropout voltage at 300 mA load for the ADP1712AUJZ-3.3-R7?
The dropout voltage at 300 mA load is between 170 mV and 205 mV.
- Can the output voltage of the ADP1712AUJZ-3.3-R7 be adjusted?
No, the ADP1712AUJZ-3.3-R7 has a fixed output voltage of 3.3V. However, the ADP1712 series includes an adjustable version that can be set between 0.8V and 5.0V using an external voltage divider.
- What is the typical ground current consumption of the ADP1712AUJZ-3.3-R7 at a 100 μA load?
The typical ground current consumption is 75 μA.
- Does the ADP1712AUJZ-3.3-R7 support soft-start functionality?
Yes, the fixed version of the ADP1712 allows an external capacitor to be connected to program the soft-start time.
- What type of output capacitors are recommended for stable operation of the ADP1712AUJZ-3.3-R7?
The regulator is optimized for stable operation with small 2.2 μF ceramic output capacitors.
- What is the operating temperature range of the ADP1712AUJZ-3.3-R7?
The operating temperature range is from -40°C to 125°C.
- What package types are available for the ADP1712AUJZ-3.3-R7?
The component is available in SOT-23-5 Thin and TSOT-23-5 packages.
- What are some common applications of the ADP1712AUJZ-3.3-R7?
Common applications include battery-operated portable equipment, wireless devices, medical devices, industrial automation, and consumer electronics.
