Key facts
- Brand
- Linear Technology
- Model
- LT1737
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Linear Technology LT1737 High Power Isolated Flyback Controller Datasheet
The LT1737 is a monolithic switching regulator controller designed for isolated flyback topologies. It drives the gate of an external MOSFET, operates from a 4.5 V to 20 V supply, and can deliver load power up to tens of watts. The device includes optional features such as load compensation, undervoltage lockout, and soft‑start.
The document details electrical characteristics, pin descriptions, typical performance curves, and package dimensions for both GN (SSOP) and S (SSOP) variants. It also offers application notes for isolated and non‑isolated designs, including recommended component values and timing considerations.
Linear Technology LT1737 specifications
| Supply Voltage Range | 4.5 V to 20 V |
|---|---|
| Switching Frequency | 50 kHz to 250 kHz |
| Shutdown Current | 50 µA to 150 µA |
| Gate Drive Current | 100 mA |
| Minimum Input Voltage | 4.1 V (typical) to 4.5 V (minimum) |
Source: Linear Technology LT1737 High Power Isolated Flyback Controller Datasheet
All Linear Technology LT1737 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage range does the LT1737 support?
The LT1737 operates from a supply voltage of 4.5 V to 20 V.
From: Linear Technology LT1737 High Power Isolated Flyback Controller Datasheet
What is the typical shutdown current of the LT1737?
The shutdown current is typically between 50 µA and 150 µA.
From: Linear Technology LT1737 High Power Isolated Flyback Controller Datasheet
What input voltage range does the LT1737 support?
The LT1737 operates with a supply voltage from 4.5 V up to 20 V.
What is the switching frequency range of the LT1737?
The device can be set to switch between 50 kHz and 250 kHz using an external capacitor.