Overview
The LT3042EDD#TRPBF is a high-performance, low dropout linear regulator produced by Analog Devices Inc. This regulator is designed to provide a stable output voltage with exceptional noise performance and high power supply rejection ratio (PSRR). It is particularly suited for powering noise-sensitive RF applications, high-speed data converters, medical imaging, and other precision electronics.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 1.8V to 20V |
| Output Voltage Range | 0V to 15V |
| Maximum Output Current | 200mA |
| Dropout Voltage | Typically 350mV |
| PSRR (Typical) | 117 dB |
| Output Noise (Typical) | 0.8µVrms |
| Quiescent Current | Nominally 2mA, <1µA in shutdown |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | 10-Lead (3mm × 3mm) Plastic DFN |
Key Features
- Ultralow noise and ultrahigh PSRR architecture, making it ideal for noise-sensitive applications.
- Low dropout voltage of typically 350mV at 200mA output current.
- Wide input voltage range from 1.8V to 20V.
- Low quiescent current of nominally 2mA and less than 1µA in shutdown.
- Fast transient response and built-in protections against overcurrent and overheating.
- Compact 10-Lead DFN package, suitable for space-saving designs.
- Stability with low ESR ceramic capacitors.
Applications
- Precision voltage regulation in data acquisition systems and battery-powered devices.
- Audio equipment and instrumentation requiring low noise and high output accuracy.
- High-performance analog and digital circuits in automotive, medical, and industrial applications.
- RF applications, mixers, LNAs, and high-speed/high-precision data converters.
- Medical applications such as imaging and diagnostics.
- Precision power supplies and post-regulators for switching supplies.
Q & A
- What is the maximum output current of the LT3042EDD#TRPBF?
The maximum output current is 200mA. - What is the typical dropout voltage of the LT3042EDD#TRPBF?
The typical dropout voltage is 350mV. - What is the PSRR of the LT3042EDD#TRPBF?
The PSRR is typically 117 dB. - What is the quiescent current of the LT3042EDD#TRPBF?
The quiescent current is nominally 2mA and less than 1µA in shutdown. - What is the operating temperature range of the LT3042EDD#TRPBF?
The operating temperature range is -40°C to 125°C. - What package type is the LT3042EDD#TRPBF available in?
The LT3042EDD#TRPBF is available in a 10-Lead (3mm × 3mm) Plastic DFN package. - What are some common applications of the LT3042EDD#TRPBF?
Common applications include precision voltage regulation in data acquisition systems, audio equipment, medical imaging, and high-performance analog and digital circuits. - How does the LT3042EDD#TRPBF handle thermal protection?
The device has built-in protections against overheating to ensure safe and reliable operation. - Can the LT3042EDD#TRPBF be paralleled to increase output current?
Yes, the LT3042 can be easily paralleled to further reduce noise, increase output current, and spread heat on the PCB. - What is the output noise of the LT3042EDD#TRPBF?
The output noise is typically 0.8µVrms.
