Overview
The LT1764AMPQ#PBF is a high-performance, low dropout (LDO) linear regulator produced by Analog Devices Inc. This regulator is optimized for fast transient response and low noise, making it suitable for a wide range of applications requiring stable and efficient power supply. The LT1764A series is known for its ability to supply up to 3A of output current with a dropout voltage of 340mV at 3A, ensuring minimal voltage loss and high efficiency.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Output Current | 3A | A |
| Dropout Voltage | 340mV at 3A | mV |
| Quiescent Current | 1mA | mA |
| Input Voltage Range | 2.7V to 20V | V |
| Output Noise | 40µVRMS (10Hz to 100kHz) | µVRMS |
| Fixed Output Voltages | 1.5V, 1.8V, 2.5V, 3.3V | V |
| Adjustable Output Voltage | 1.21V to 20V | V |
| Operating Temperature | -55°C to 125°C | °C |
| Mounting Type | Surface Mount |
Key Features
- Optimized for fast transient response
- Low noise: 40µVRMS (10Hz to 100kHz)
- No protection diodes needed
- Controlled quiescent current in dropout
- Stable with 10µF output capacitor and ceramic capacitors
- Reverse battery protection and no reverse current
- Thermal limiting
- <1µA quiescent current in shutdown
Applications
The LT1764AMPQ#PBF is versatile and can be used in various applications, including but not limited to:
- Power supply systems requiring low noise and fast transient response
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- High-reliability automotive systems
Q & A
- What is the maximum output current of the LT1764AMPQ#PBF?
The maximum output current is 3A. - What is the dropout voltage at 3A?
The dropout voltage is 340mV at 3A. - What is the quiescent current of the regulator?
The quiescent current is 1mA. - What is the input voltage range of the LT1764AMPQ#PBF?
The input voltage range is from 2.7V to 20V. - What are the fixed output voltages available for this regulator?
The fixed output voltages are 1.5V, 1.8V, 2.5V, and 3.3V. - Can the output voltage be adjusted?
Yes, the output voltage can be adjusted from 1.21V to 20V. - What is the operating temperature range of the LT1764AMPQ#PBF?
The operating temperature range is from -55°C to 125°C. - Does the regulator require protection diodes?
No, protection diodes are not needed. - Is the regulator stable with ceramic capacitors?
Yes, the regulator is stable with ceramic capacitors. - What is the quiescent current in shutdown mode?
The quiescent current in shutdown mode is less than 1µA.
