Key facts
- Brand
- Linear Technology
- Model
- LT1725
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Linear Technology LT1725 Isolated Flyback Controller Datasheet
The LT1725 is a monolithic switching regulator controller designed for isolated flyback topologies. It drives an external MOSFET, provides optional load compensation, undervoltage lockout, and a 3 V reference output, making it suitable for telecom and instrumentation power supplies.
The document includes absolute maximum ratings, electrical characteristics, pin descriptions, timing diagrams, package information, and related part numbers, providing all necessary data for design and implementation.
Linear Technology LT1725 specifications
| Turn‑On Voltage (VEC) | 15.1 V min, 16.0 V typ, 140 V max |
|---|---|
| Supply Current (Ve open) | 6 mA min, 10 mA typ, 15 mA max |
| Feedback Voltage | 1.230 V min, 1.260 V max |
Source: Linear Technology LT1725 Isolated Flyback Controller Datasheet
All Linear Technology LT1725 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum input voltage the LT1725 can handle?
The absolute maximum rating for the supply voltage (VEC) is 140 V.
From: Linear Technology LT1725 Isolated Flyback Controller Datasheet
How is the soft‑start function implemented?
Soft‑start is provided by connecting an external capacitor to the SFST pin.
From: Linear Technology LT1725 Isolated Flyback Controller Datasheet