Overview
The LT3045EDD#TRPBF, produced by Analog Devices Inc., is a high-performance low dropout linear regulator (LDO) designed to power noise-sensitive applications. It features Linear Technology's (LTC) ultralow noise and ultrahigh power supply rejection ratio (PSRR) architecture, making it ideal for use in environments where low noise and high stability are crucial.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Voltage Range | 2 | 20 | V | ||
| Output Current | 500 | mA | |||
| Output Voltage Range | 0.3 | 15 | V | ||
| Dropout Voltage | ILOAD = 500mA | 300 | mV | ||
| Load Regulation | ILOAD = 1mA to 500mA, VIN = 2V, VOUT = 1.3V | 0.1 | 0.5 | mV | |
| PSRR | 1kHz to 100kHz | 70 | dB | ||
| Noise (10Hz to 100kHz) | ILOAD = 200mA, VOUT = 5V | 0.8 | µVrms | ||
| Operating Junction Temperature Range | –40 | 125 | °C | ||
| Thermal Shutdown | 165 | °C |
Key Features
- Ultralow Noise: The LT3045 features ultralow noise output, making it suitable for noise-sensitive applications.
- Ultrahigh PSRR: High power supply rejection ratio ensures stable output voltage despite input voltage variations.
- Programmable Current Limit: Allows for adjustable current limit settings using external resistors.
- Thermal Shutdown and Current Limit Protection: Protects the device from overheating and overcurrent conditions.
- Input-to-Output Differential Voltage Control (VIOC): Enhances the regulator’s ability to maintain output voltage stability under various input conditions.
- Fast Start-Up Time: Quickly reaches the desired output voltage, reducing start-up time in applications.
Applications
The LT3045EDD#TRPBF is ideal for use in various applications requiring low noise and high stability, such as:
- Powering noise-sensitive analog circuits.
- Supplying power to precision instrumentation and measurement devices.
- Use in medical devices, audio equipment, and other high-fidelity applications.
- Powering microcontrollers and other digital circuits requiring clean power.
Q & A
- What is the input voltage range of the LT3045EDD#TRPBF?
The input voltage range is from 2V to 20V. - What is the maximum output current of the LT3045EDD#TRPBF?
The maximum output current is 500mA. - What is the typical dropout voltage of the LT3045EDD#TRPBF?
The typical dropout voltage is 300mV at an output current of 500mA. - How does the LT3045EDD#TRPBF protect against overheating?
The device features thermal shutdown protection, which activates at a junction temperature of 165°C. - Can the current limit of the LT3045EDD#TRPBF be programmed?
Yes, the current limit can be programmed using external resistors. - What is the operating junction temperature range of the LT3045EDD#TRPBF?
The operating junction temperature range is from –40°C to 125°C. - What is the typical noise level of the LT3045EDD#TRPBF?
The typical noise level is 0.8µVrms from 10Hz to 100kHz at an output current of 200mA and an output voltage of 5V. - Does the LT3045EDD#TRPBF have input-to-output differential voltage control?
Yes, it features input-to-output differential voltage control (VIOC) to enhance output voltage stability. - How quickly does the LT3045EDD#TRPBF start up?
The device has a fast start-up time, typically around 10ms to reach 90% of the output voltage. - What type of package is the LT3045EDD#TRPBF available in?
The LT3045EDD#TRPBF is available in a 12-lead MSOP package.
