LT3748IMS Analog Devices Integrated Circuit (Other) In Stock
Analog Devices LT3748IMS is a 100 V isolated flyback controller IC eliminating the opto-coupler for simplified DC-DC converter design. Features programmable switching frequency in a compact MSOP-16 package. Available in stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- LT3748IMS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT3748IMS?
- Opto-coupler-free isolated feedback topology reduces component count and simplifies board layout in 100 V flyback converter designs
- Wide input voltage range up to 100 V supports designs from logic supplies to high-voltage industrial and automotive power rails
- Compact MSOP-16 package with programmable switching frequency and soft-start for fast, reliable isolated DC-DC power supply development
What is LT3748IMS used for?
The LT3748IMS is ideal for isolated DC-DC power supplies in industrial automation, telecommunications, and medical equipment requiring galvanic isolation at input voltages up to 100 V without an opto-coupler. Its simplified feedback topology reduces component count, enabling compact flyback converter designs for multi-output power modules, PoE systems, and isolated gate drivers. The wide input voltage range and programmable control make it suitable for both fixed-frequency and boundary-mode operation in demanding power applications.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the LT3748IMS datasheet?
LT3748IMS Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT3748IMS?
Compatible alternatives and drop-in replacements for LT3748IMS:
suggested
suggested
Frequently Asked Questions
What maximum input voltage and package does the LT3748IMS flyback controller support?
The LT3748IMS supports input voltages up to 100 V and is housed in a compact MSOP-16 package, making it suitable for isolated DC-DC converters in industrial, telecom, and automotive designs where board space and component count are critical constraints.
How does LT3748IMS achieve isolated output regulation without an opto-coupler in industrial power designs?
LT3748IMS senses energy stored in the flyback transformer to regulate output voltage, eliminating the opto-coupler and supporting input voltages up to 100 V while delivering programmable output voltages starting from 1.25 V for industrial sensors, PLCs, and isolated communication interfaces.
When should a designer choose LT3748IMS over an opto-coupler-based flyback controller for a 48 V bus application?
For a 48 V input isolated power supply requiring minimal component count, LT3748IMS eliminates the opto-coupler and its associated 5 V bias rail, reducing complexity and power consumption by up to 30% compared to traditional opto-isolated flyback controllers.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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