Overview
The LT1764AET#PBF is a low dropout regulator (LDO) produced by Analog Devices Inc., optimized for fast transient response. This device is capable of supplying up to 3A of output current with a dropout voltage of 340mV, making it suitable for applications requiring high current and low voltage drop. The LT1764A series is known for its low noise operation, with an output noise of 40µVRMS (10Hz to 100kHz), and a quiescent current of 1mA. It offers a wide input voltage range from 2.7V to 20V and is available in fixed output voltages as well as adjustable output configurations.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Current | 3 | A |
| Dropout Voltage | 340 | mV |
| Quiescent Current | 1 | mA |
| Input Voltage Range | 2.7 to 20 | V |
| Output Noise (10Hz to 100kHz) | 40 | µVRMS |
| Fixed Output Voltages | 1.5V, 1.8V, 2.5V, 3.3V | V |
| Adjustable Output Range | 1.21V to 20V | V |
| Maximum Operating Temperature | 125 | °C |
| Storage Temperature Range | –65 to 150 | °C |
| Lead Temperature (Soldering, 10 sec) | 300 | °C |
Key Features
- Fast transient response
- Low noise operation: 40µVRMS (10Hz to 100kHz)
- Wide input voltage range: 2.7V to 20V
- Fixed and adjustable output voltage configurations
- No protection diodes needed
- Controlled quiescent current in dropout
- Stable with 10µF output capacitor (tantalum, ceramic, or aluminum electrolytic)
- Reverse battery protection and no reverse current
- Thermal limiting
Applications
The LT1764AET#PBF is suitable for a variety of applications that require high current and low dropout voltage, such as:
- Power supplies for high-current devices
- Industrial control systems
- Automotive electronics
- Telecommunications equipment
- Medical devices requiring stable and low-noise power supply
Q & A
- What is the maximum output current of the LT1764AET#PBF?
The maximum output current is 3A. - What is the dropout voltage of the LT1764AET#PBF at 3A output current?
The dropout voltage is 340mV. - What is the quiescent current of the LT1764AET#PBF?
The quiescent current is 1mA. - What is the input voltage range of the LT1764AET#PBF?
The input voltage range is from 2.7V to 20V. - What are the fixed output voltages available for the LT1764AET#PBF?
The fixed output voltages are 1.5V, 1.8V, 2.5V, and 3.3V. - Can the output voltage of the LT1764AET#PBF be adjusted?
Yes, the output voltage can be adjusted from 1.21V to 20V. - What is the maximum operating temperature of the LT1764AET#PBF?
The maximum operating temperature is 125°C. - Does the LT1764AET#PBF require protection diodes?
No, protection diodes are not needed. - Is the LT1764AET#PBF stable with ceramic capacitors?
Yes, it is stable with ceramic capacitors as well as tantalum and aluminum electrolytic capacitors. - Does the LT1764AET#PBF have reverse battery protection?
Yes, it has reverse battery protection and no reverse current.
