Overview
The LT3042IDD#PBF, produced by Analog Devices Inc., is a high-performance low dropout linear regulator (LDO) designed for powering noise-sensitive applications. It features Analog Devices' ultralow noise and ultrahigh power supply rejection ratio (PSRR) architecture, making it ideal for RF applications, high-speed data converters, and medical instrumentation. The regulator can supply up to 200mA of output current with a typical dropout voltage of 350mV. It operates with a quiescent current of nominally 2mA, which drops to less than 1µA in shutdown mode.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Input Voltage (Max) | 20 | V |
| Output Voltage (Max) | 15 | V |
| Output Current (Max) | 200 | mA |
| Dropout Voltage (Typical) | 350 | mV |
| Quiescent Current (Typical) | 2 | mA |
| Quiescent Current in Shutdown | <1 | µA |
| Operating Temperature Range | –40°C to 125°C | |
| Package Type | 10-Lead (3mm × 3mm) Plastic DFN |
Key Features
- Ultralow noise and ultrahigh PSRR architecture for noise-sensitive applications.
- High performance voltage buffer with precision current reference.
- Easy paralleling to reduce noise, increase output current, and spread heat on the PCB.
- Low dropout voltage of 350mV typical.
- Low quiescent current of 2mA, dropping to less than 1µA in shutdown.
- Wide operating temperature range from –40°C to 125°C.
Applications
- Noise-sensitive RF applications.
- High-speed and high-precision data converters.
- Medical applications: imaging and diagnostics.
- Precision power supplies.
- Post-regulator for switching supplies.
- Mixers and low noise amplifiers (LNAs).
Q & A
- What is the maximum input voltage for the LT3042IDD#PBF?
The maximum input voltage is 20V. - What is the maximum output current of the LT3042IDD#PBF?
The maximum output current is 200mA. - What is the typical dropout voltage of the LT3042IDD#PBF?
The typical dropout voltage is 350mV. - What is the quiescent current of the LT3042IDD#PBF in normal operation?
The quiescent current is nominally 2mA. - What is the quiescent current in shutdown mode?
The quiescent current drops to less than 1µA in shutdown mode. - What is the operating temperature range of the LT3042IDD#PBF?
The operating temperature range is from –40°C to 125°C. - What type of package does the LT3042IDD#PBF come in?
The LT3042IDD#PBF comes in a 10-Lead (3mm × 3mm) Plastic DFN package. - Can the LT3042IDD#PBF be paralleled to increase performance?
Yes, the LT3042IDD#PBF can be easily paralleled to reduce noise, increase output current, and spread heat on the PCB. - What are some common applications for the LT3042IDD#PBF?
Common applications include noise-sensitive RF applications, high-speed and high-precision data converters, medical imaging and diagnostics, precision power supplies, and post-regulators for switching supplies. - Where can I find more detailed specifications and datasheets for the LT3042IDD#PBF?
You can find detailed specifications and datasheets on the official Analog Devices website or through distributors like Mouser, Digi-Key, and Microchip USA.
