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LT8301IS5
+物料清單Switching Voltage Regulators LT8301 - 42VIN Micropower No-Opto Isolated Flyback Converter with 65V/1.2A Switch
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製造商部分 #LT8301IS5
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有存貨17707
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概述
Description
Key features of the LT8301IS5 include its ability to deliver up to 6W of output power, adjustable output voltage via a simple resistor divider, and a no-opto-coupler design, which simplifies feedback loop designs and reduces overall component count. The device also incorporates a boundary mode operation to improve efficiency and reduce electromagnetic interference (EMI).
The LT8301IS5 comes in a space-saving SOT-23 package, making it ideal for compact designs. It offers protection features such as thermal shutdown, overcurrent protection, and under-voltage lockout, enhancing reliability and safety. With its robust performance and compact design, the LT8301IS5 is a versatile solution for designers looking for efficient and reliable isolated power conversion.
Equivalent
1. Texas Instruments SN6505A/B
2. Maxim Integrated (now part of Analog Devices) MAXREFDES114#
3. ON Semiconductor NCP1562
4. Silanna Semiconductor SZ1130
These alternatives may not match all specifications exactly, so it's important to check datasheets for specific requirements like output power, input voltage range, and isolation needs.
Features
- Wide Input Voltage Range: Operates efficiently across a broad input range of 2.8 V to 42 V, suitable for various power supplies.
- Integrated Feedback Mechanism: Utilizes a boundary mode control method that requires no optocoupler, reducing component count and cost.
- Output Voltage Flexibility: Capable of generating multiple output voltages, as it regulates the output based on flyback pulse voltage.
- High Efficiency and Low Standby Current: Designed for high efficiency and maintains low standby current consumption, improving overall power efficiency.
- Compact Size: Offered in a 5-lead TSOT-23 package, making it ideal for space-constrained applications.
- Protection Features: Includes over-temperature protection and current limit to enhance reliability.
These features make the LT8301IS5 well-suited for isolated power supply applications, such as industrial, telecom, and medical equipment.
Pinout
Here is a brief overview of its pins and functions:
1. VIN (Pin 1): Supply voltage input. The pin is used to connect the input voltage supply to the IC.
2. SW (Pin 2): Switch node. This pin is connected to the drain of the internal power MOSFET and is used to drive the primary winding of the flyback transformer.
3. GND (Pin 3): Ground. This pin serves as the reference point for the IC and must be connected to the system ground.
4. FB (Pin 4): Feedback input. It is used to regulate the output voltage by monitoring a resistor divider network from the auxiliary winding.
5. BYP (Pin 5): Bypass. This pin is used for an external capacitor to reduce noise on the internal reference voltage.
The LT8301IS5 offers simplicity and efficiency for isolated power supply designs.