Datasheet | En3660

The datasheet also references the required (e.g., M22520/1-01) and insertion/extraction tools (e.g., M81969/14-11).

It is possible that:

: A ±1% feedback voltage means your output voltage accuracy depends on external resistors. If you use 1% resistors, total error could be ~2%. For a 3.3V rail, that’s 3.234V to 3.366V – acceptable for digital logic but not for precision analog. en3660 datasheet

For a power module like the EN3660, the primary method of cooling is conduction through the PCB.

due to copyright. However, for most design tasks, the manufacturer’s “technical data sheet” or “product specification” that cites EN3660 compliance is sufficient, provided it includes all the parameters listed above. The datasheet also references the required (e

The EN3660 datasheet is not merely a product brochure; it is a regulatory and technical bible. Here is why every engineer working on civil or military aerospace platforms must master it:

Power dissipation is the silent killer of regulators. For the EN3660 at 12V input, 5V output, 3A load, efficiency is ~90%. That means 10% of 15W input (1.5W) is dissipated as heat. The thermal resistance junction-to-ambient (RθJA) for a QFN package on a standard PCB might be 45°C/W. Thus, temperature rise = 1.5W × 45°C/W = 67.5°C. If ambient is 30°C, junction hits 97.5°C – safe for a 150°C max, but hot. For a 3

| Pin | Name | Description | |-----|------|-------------| | 1 | VIN | Input supply. Bypass with ceramic capacitor. | | 2 | EN | Enable. Logic high turns on the IC. | | 3 | GND | Power ground. | | 4 | SW | Switching node. Connect to inductor. | | 5 | VOUT | Output voltage sense for feedback. | | 6 | FB | Feedback input from resistor divider. | | 7 | SS | Soft-start capacitor. | | 8 | RT | Frequency adjust (if adjustable). | | EP | Exposed pad | Must be soldered to PCB ground for thermal relief. |

One of the most challenging aspects of power design is thermal management. The EN3660 datasheet provides thermal resistance parameters, often denoted as $R_\theta JA$ (Junction-to-Ambient) and $R_\theta JC$ (Junction-to-Case).