Overview
The LT3990EMSE#TRPBF is a high-performance, adjustable frequency monolithic buck switching regulator produced by Analog Devices Inc. This component is designed to provide efficient power management solutions across a wide range of applications. It features a broad input voltage range of 4.2V to 62V, making it versatile for various power supply needs. The regulator is available in fixed output voltage versions, such as the LT3990-3.3 and LT3990-5, which regulate the output to 3.3V and 5V, respectively. The LT3990EMSE#TRPBF is housed in a 16-lead Plastic MSOP package and operates over a temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage | 4.2 | 62 | V | |
| Output Voltage (Fixed) | 1.21 | 25 | V | |
| Output Current | 350 | mA | ||
| Switching Frequency | 210kHz | 2.3MHz | ||
| Quiescent Current | 2.5 | µA | ||
| Operating Temperature | -40°C | 125°C | ||
| Package Type | 16-Lead Plastic MSOP |
Key Features
- Broad Input Voltage Range: The LT3990EMSE#TRPBF accepts input voltages from 4.2V to 62V, making it suitable for a variety of applications.
- Low Quiescent Current: The regulator consumes only 2.5µA of quiescent current, enhancing efficiency in low-power applications.
- Adjustable Output Voltage: The output voltage can be adjusted from 1.21V to 25V, providing flexibility in design.
- Fixed Output Voltage Versions: Available in fixed output voltage versions (LT3990-3.3 and LT3990-5) for specific application needs.
- High Switching Frequency: The switching frequency ranges from 210kHz to 2.3MHz, allowing for efficient operation and compact design.
- Shutdown Feature: The regulator includes a shutdown feature controlled by the EN/UVLO pin, enabling power management and conservation.
Applications
- Automotive Battery Regulation: Suitable for automotive applications due to its robust operating temperature range and high input voltage capability.
- Power for Portable Products: Ideal for powering portable devices due to its low quiescent current and compact package.
- Industrial Supplies: Used in industrial power supplies where a wide input voltage range and high efficiency are required.
Q & A
- What is the input voltage range of the LT3990EMSE#TRPBF?
The input voltage range is from 4.2V to 62V.
- What is the typical quiescent current of the LT3990EMSE#TRPBF?
The typical quiescent current is 2.5µA.
- What are the fixed output voltage versions available for the LT3990EMSE#TRPBF?
The fixed output voltage versions are LT3990-3.3 and LT3990-5, which regulate the output to 3.3V and 5V, respectively.
- What is the switching frequency range of the LT3990EMSE#TRPBF?
The switching frequency ranges from 210kHz to 2.3MHz.
- What is the operating temperature range of the LT3990EMSE#TRPBF?
The operating temperature range is from -40°C to 125°C.
- What package type is the LT3990EMSE#TRPBF available in?
The LT3990EMSE#TRPBF is available in a 16-Lead Plastic MSOP package.
- Does the LT3990EMSE#TRPBF have a shutdown feature?
Yes, the regulator includes a shutdown feature controlled by the EN/UVLO pin.
- What are some common applications for the LT3990EMSE#TRPBF?
Common applications include automotive battery regulation, power for portable products, and industrial supplies.
- Is the LT3990EMSE#TRPBF suitable for automotive applications?
Yes, it is suitable for automotive applications due to its robust operating temperature range and compliance with automotive standards.
- How does the LT3990EMSE#TRPBF manage power efficiency?
The LT3990EMSE#TRPBF manages power efficiency through its low quiescent current, high switching frequency, and efficient buck switching regulator design.
