Overview
The LT8361EMSE#PBF is a high-performance, low quiescent current DC/DC converter from Analog Devices Inc. This device is designed to operate in a variety of configurations, including boost, SEPIC, and inverting topologies. It features a 100V, 2A internal power switch and operates from a wide input voltage range of 2.8V to 60V. The LT8361 is known for its single feedback pin architecture, which simplifies the design process and enhances flexibility. It is suitable for applications requiring high efficiency, low output ripple, and robust performance across various operating conditions.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Operating Voltage Range (VIN) | 2.8 | 60 | V | |
| Switch Current (ISW) | 2 | A | ||
| Output Voltage (VOUT) | 100 | V | ||
| Quiescent Current at Shutdown (VEN/UVLO = 0.2V) | 1 | 2 | μA | |
| Quiescent Current at Shutdown (VEN/UVLO = 1.5V) | 2 | 5 | μA | |
| Operating Temperature Range | -40 | 125 | °C | |
| Package | 16(12)-Lead MSOP w/ EP | |||
| RoHS Compliance | Compliant |
Key Features
- Flexible Topology: Can be configured as a boost, SEPIC, or inverting converter to generate either positive or negative output voltages.
- Low Quiescent Current: Ultra-low quiescent current during shutdown and light loads, enhancing efficiency.
- Single Feedback Pin: Simplifies the design process with a unique single feedback pin architecture.
- High Efficiency: Maintains high efficiency across various operating conditions, including low output ripple in Burst Mode operation.
- Spread-Spectrum Modulation: Reduces EMI by modulating the switching frequency at heavy loads.
- Undervoltage Lockout (UVLO): Prevents operation below a specified input voltage threshold.
Applications
- Automotive Systems: Suitable for automotive applications due to its robust performance and wide operating temperature range.
- Industrial Power Supplies: Ideal for industrial power supply designs requiring high reliability and efficiency.
- Telecommunications: Used in telecommunications equipment for efficient power conversion.
- Consumer Electronics: Applicable in consumer electronics where low quiescent current and high efficiency are crucial.
Q & A
- What is the input voltage range of the LT8361?
The input voltage range of the LT8361 is from 2.8V to 60V.
- What are the possible output voltage configurations for the LT8361?
The LT8361 can be configured to generate either positive or negative output voltages in boost, SEPIC, or inverting topologies.
- What is the typical switch current of the LT8361?
The typical switch current of the LT8361 is 2A.
- How does the LT8361 manage quiescent current during shutdown?
The LT8361 draws less than 1μA from VIN when the EN/UVLO pin voltage is below 0.2V.
- What is the operating temperature range of the LT8361?
The operating temperature range of the LT8361 is from -40°C to 125°C.
- Is the LT8361 RoHS compliant?
Yes, the LT8361 is RoHS compliant.
- How does the LT8361 reduce EMI?
The LT8361 reduces EMI through Spread-Spectrum Modulation of the switching frequency at heavy loads.
- What package options are available for the LT8361?
The LT8361 is available in a 16(12)-Lead MSOP package with an exposed pad.
- Can the LT8361 be used in automotive applications?
Yes, the LT8361 is suitable for automotive applications, but specific automotive-grade products and reliability reports should be consulted.
- How does the LT8361 handle undervoltage lockout (UVLO)?
The LT8361 enters undervoltage lockout and stops switching if the EN/UVLO pin voltage is below 1.6V.
