Overview
The ADP171AUJZ-R7 is a low-dropout (LDO) linear regulator produced by Analog Devices Inc. This component is designed to provide stable and precise voltage regulation, making it ideal for a wide range of low-power applications. It operates with a low quiescent current, high power supply rejection ratio (PSRR), and low noise performance, which are crucial for maintaining the overall performance and longevity of electronic devices.
The ADP171AUJZ-R7 is particularly suited for battery-operated portable equipment due to its low shutdown current and high efficiency. Its compact 5-lead TSOT package ensures a small footprint, making it suitable for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Mounting Style | SMD/SMT |
| Output Voltage | 0.8 V to 3.0 V (Adjustable) |
| Maximum Output Current | 300 mA |
| Input Voltage Range | 1.6 V to 3.6 V |
| Polarity | Positive |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
| Dropout Voltage | 66 mV at 300 mA load |
| Output Voltage Accuracy | ±1% (Fixed), ±3% (Over line, load, and temperature) |
| PSRR Performance | 70 dB at 10 kHz, 73 dB at 1 kHz |
| Noise Performance | 30 µV rms at VOUT = 0.8 V |
| Package Type | 5-lead TSOT |
Key Features
- Low quiescent current of 23 µA at 0 mA load, making it ideal for battery-operated devices.
- High PSRR performance of 70 dB at 10 kHz and 73 dB at 1 kHz.
- Low noise performance of 30 µV rms at VOUT = 0.8 V.
- Adjustable output voltage range from 0.8 V to 3.0 V.
- Current limit and thermal overload protection for safe operation.
- Logic-controlled enable feature.
- Stable operation with a small 1 µF ceramic output capacitor.
- Compact 5-lead TSOT package for space-constrained designs.
- Rohs compliance, ensuring environmentally responsible use.
Applications
- Mobile phones and other portable devices.
- Digital cameras and audio devices.
- Battery-powered equipment.
- DSP/FPGA/microprocessor supplies.
- Post dc-dc regulation.
- Industrial control systems.
- Automotive electronics.
- Medical devices.
- RF transceivers and other communication devices.
Q & A
- What is the maximum output current of the ADP171AUJZ-R7?
The maximum output current is 300 mA.
- What is the input voltage range of the ADP171AUJZ-R7?
The input voltage range is from 1.6 V to 3.6 V.
- What is the output voltage accuracy of the ADP171AUJZ-R7?
The output voltage accuracy is ±1% for fixed outputs and ±3% over line, load, and temperature.
- Does the ADP171AUJZ-R7 have built-in protection features?
Yes, it includes current limit and thermal overload protection.
- What is the typical noise performance of the ADP171AUJZ-R7?
The typical noise performance is 30 µV rms at VOUT = 0.8 V.
- What package type does the ADP171AUJZ-R7 use?
The package type is a 5-lead TSOT.
- Is the ADP171AUJZ-R7 RoHS compliant?
Yes, it is RoHS compliant.
- What are some common applications of the ADP171AUJZ-R7?
Common applications include mobile phones, digital cameras, battery-powered equipment, and industrial control systems.
- How does the ADP171AUJZ-R7 achieve its adjustable output voltage?
The output voltage is adjustable via a resistor divider connected to the ADJ pin.
- What is the operating temperature range of the ADP171AUJZ-R7?
The operating temperature range is from -40°C to +125°C.
