Overview
The ADP1712AUJZ-2.5-R7 is a low-dropout linear voltage regulator produced by Analog Devices Inc. This surface-mount device is designed to operate from an input voltage range of 2.5 V to 5.5 V and provides up to 300 mA of output current. The regulator features a low dropout voltage of 170 mV at a 300 mA load, enhancing efficiency and allowing operation over a wide input voltage range. It is particularly suited for battery-operated portable equipment due to its low ground current and high power supply rejection ratio (PSRR).
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 2.5 | 5.5 | V | |
| Output Current | 300 | mA | ||
| Dropout Voltage (IOUT = 300 mA) | 170 | mV | ||
| Ground Current (IOUT = 100 μA) | 75 | 85 | μA | |
| Shutdown Current | 0.1 | 1.0 | μA | |
| Output Voltage Accuracy (Fixed Version) | ±1% | ±2% | ||
| Power Supply Rejection Ratio (PSRR) at 1 kHz | 65 | dB | ||
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | 5-lead TSOT |
Key Features
- Low dropout voltage of 170 mV at 300 mA load, enhancing efficiency and allowing operation over a wide input voltage range.
- High power supply rejection ratio (PSRR) of 65 dB at 1 kHz, ensuring excellent line and load transient response.
- Low ground current, typically 75 μA when driving a 100 μA load, making it ideal for battery-operated portable equipment.
- Fixed output voltage options ranging from 0.75 V to 3.3 V, and an adjustable output voltage option from 0.8 V to 5.0 V.
- External soft-start capability using an external capacitor connected to the SS pin.
- Current limit and thermal overload protection for enhanced reliability.
- Stable operation with a small 2.2 μF ceramic output capacitor.
- Logic-controlled enable feature.
- Low output noise of 380 μVrms.
Applications
The ADP1712AUJZ-2.5-R7 is suitable for a variety of applications, including:
- Mobile phones and other portable communication devices.
- Digital cameras and audio devices.
- Battery-powered equipment and portable electronics.
- Post DC-to-DC regulation in various power supply systems).
Q & A
- What is the input voltage range of the ADP1712AUJZ-2.5-R7?
The input voltage range is from 2.5 V to 5.5 V.
- What is the maximum output current of the ADP1712AUJZ-2.5-R7?
The maximum output current is 300 mA.
- What is the dropout voltage at a 300 mA load?
The dropout voltage is 170 mV at a 300 mA load.
- What is the typical ground current when driving a 100 μA load?
The typical ground current is 75 μA when driving a 100 μA load).
- What are the fixed output voltage options available for the ADP1712AUJZ-2.5-R7?
The fixed output voltage options range from 0.75 V to 3.3 V).
- Can the output voltage be adjusted, and if so, what is the adjustable range?
Yes, the output voltage can be adjusted from 0.8 V to 5.0 V using an external voltage divider).
- What is the power supply rejection ratio (PSRR) at 1 kHz?
The PSRR at 1 kHz is 65 dB).
- What type of package does the ADP1712AUJZ-2.5-R7 come in?
The device comes in a 5-lead TSOT package.
- What is the operating temperature range of the ADP1712AUJZ-2.5-R7?
The operating temperature range is from -40°C to 125°C.
- Does the ADP1712AUJZ-2.5-R7 have built-in protection features?
Yes, it includes current limit and thermal overload protection).
