Overview
The LT3045HDD#PBF, produced by Analog Devices Inc., is a high-performance low dropout linear regulator (LDO) designed for powering noise-sensitive applications. It features LTC's ultralow noise and ultrahigh power supply rejection ratio (PSRR) architecture. This regulator is ideal for use in precision analog circuits, RF amplifiers, and other applications where low noise and high stability are crucial.
Key Specifications
| Attribute | Value |
|---|---|
| Input Voltage Range | ±22V (IN Pin), ±22V (EN/UV Pin) |
| Output Current | Up to 500mA |
| Output Voltage Range | 0V to 15V |
| Dropout Voltage | Typically 260mV at 500mA load |
| Quiescent Current | Nominally 2.2mA, drops to <1µA in shutdown |
| Output Noise Spectral Density | Very low, typically around 0.8µV/√Hz at 10kHz |
| PSRR | Ultrahigh, maintaining high rejection across the output voltage range |
| Operating Temperature Range | -40°C to 150°C (depending on the package) |
| Package | DFN-10-EP(3x3) |
| RoHS Compliance | Yes |
Key Features
- Ultralow noise and ultrahigh PSRR architecture, making it suitable for noise-sensitive applications.
- Adjustable output voltage from 0V to 15V.
- Programmable current limit and power good indicator.
- Fast start-up capability.
- Low dropout voltage of typically 260mV at 500mA load.
- Low quiescent current, nominally 2.2mA, and <1µA in shutdown.
- Ability to be paralleled to reduce noise, increase output current, and spread heat on the PCB.
Applications
- Precision analog circuits.
- RF amplifiers and other RF applications.
- High-performance audio equipment.
- Medical devices requiring low noise power supplies.
- Automotive applications (specific models with #W suffix).
Q & A
- What is the maximum output current of the LT3045HDD#PBF?
The LT3045HDD#PBF can supply up to 500mA of output current.
- What is the typical dropout voltage of the LT3045HDD#PBF?
The typical dropout voltage is 260mV at a 500mA load.
- What is the operating temperature range of the LT3045HDD#PBF?
The operating temperature range is -40°C to 150°C, depending on the package.
- Is the LT3045HDD#PBF RoHS compliant?
Yes, the LT3045HDD#PBF is RoHS compliant.
- What is the package type of the LT3045HDD#PBF?
The package type is DFN-10-EP(3x3).
- Can the LT3045HDD#PBF be used in automotive applications?
Yes, specific models with the #W suffix are designed for automotive applications.
- What is the quiescent current of the LT3045HDD#PBF?
The quiescent current is nominally 2.2mA and drops to <1µA in shutdown.
- Does the LT3045HDD#PBF have programmable current limit?
Yes, it features programmable current limit.
- Can the LT3045HDD#PBF be paralleled to increase output current?
Yes, it can be paralleled to reduce noise, increase output current, and spread heat on the PCB.
- What is the output voltage range of the LT3045HDD#PBF?
The output voltage range is adjustable from 0V to 15V.
