Overview
The LT3045IMSE#TRPBF, produced by Analog Devices Inc., is a high-performance low dropout linear regulator. It features LTC's ultralow noise and ultrahigh power supply rejection ratio (PSRR) architecture, making it ideal for powering noise-sensitive applications. The regulator is designed as a precision current reference followed by a high-performance voltage buffer and can be easily paralleled to reduce noise, increase output current, and spread heat on the PCB.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2V to 20V |
| Output Voltage Range | 0V to 15V |
| Maximum Output Current | 500mA |
| Dropout Voltage | Typically 260mV at 500mA load |
| Quiescent Current | Nominally 2.2mA, drops to <1µA in shutdown |
| PSRR | Up to 76dB at 1MHz |
| Noise Spectral Density | As low as 2.5µV/√Hz at 10Hz |
| Operating Temperature Range | –40°C to 125°C |
| Package Type | 12-Lead Plastic MSOP |
Key Features
- Ultralow noise and ultrahigh PSRR architecture for noise-sensitive applications.
- Programmable current limit and power good indicator.
- Fast start-up capability.
- Wide output voltage range (0V to 15V) with unity-gain operation.
- Ability to be paralleled for increased output current and reduced noise.
- Low quiescent current and shutdown current.
- Thermal shutdown protection.
Applications
- Noise-sensitive analog circuits.
- High-precision measurement equipment.
- Auditory and medical devices requiring low noise power supplies.
- Automotive applications (with appropriate automotive-grade models).
- General-purpose low dropout voltage regulation in various electronic systems.
Q & A
- What is the maximum output current of the LT3045IMSE#TRPBF? The maximum output current is 500mA.
- What is the typical dropout voltage of the LT3045IMSE#TRPBF? The typical dropout voltage is 260mV at a 500mA load.
- What is the quiescent current of the LT3045IMSE#TRPBF? The quiescent current is nominally 2.2mA and drops to <1µA in shutdown.
- What is the PSRR of the LT3045IMSE#TRPBF? The PSRR is up to 76dB at 1MHz.
- Can the LT3045IMSE#TRPBF be used in automotive applications? Yes, but only the automotive-grade models designated with a #W suffix are suitable for automotive use.
- What is the operating temperature range of the LT3045IMSE#TRPBF? The operating temperature range is –40°C to 125°C.
- What package type is the LT3045IMSE#TRPBF available in? It is available in a 12-Lead Plastic MSOP package.
- Can the LT3045IMSE#TRPBF be paralleled to increase output current? Yes, it can be paralleled to increase output current and reduce noise.
- What is the noise spectral density of the LT3045IMSE#TRPBF? The noise spectral density is as low as 2.5µV/√Hz at 10Hz.
- Does the LT3045IMSE#TRPBF have thermal shutdown protection? Yes, it features thermal shutdown protection.
