Gyd-9e Datasheet Info

| Pin No. | Symbol | Description | |---------|--------|-------------| | 1 | VIN | Input voltage (4.5V – 28V) | | 2 | GND | Common ground | | 3 | VOUT | Regulated output voltage | | 4 | ADJ | Output voltage adjustment (connect resistor divider to GND) |

| Parameter | Symbol | Min | Max | Unit | |-----------|--------|-----|-----|------| | Input voltage | VIN | -0.3 | 30 | V | | Output voltage | VOUT | -0.3 | VIN+0.3 | V | | ADJ pin voltage | VADJ | -0.3 | 6 | V | | Operating temperature | T_OP | -40 | +85 | °C | | Storage temperature | T_STG | -55 | +125 | °C | | Thermal resistance (junction-ambient) | RθJA | - | 45 | °C/W | gyd-9e datasheet

Where R2 is connected between ADJ pin and GND, and R1 between VOUT and ADJ. | Pin No

Mechanical dimensions: Typically 21.5mm (L) x 11.5mm (W) x 6.8mm (H), with 2.54mm pin spacing suitable for breadboards or perfboards. Exceeding these values may cause permanent damage: Exceeding these values may cause permanent damage: The

The GYD-9E is often preferred for its stable 500kHz switching frequency (reduces output ripple compared to 150kHz LM2596) and better transient response. Even with a good GYD-9E datasheet , practical issues can arise. Here are solutions:

With RθJA = 45°C/W, temperature rise = 171°C → . Solution: Add a heatsink or forced airflow, or reduce input voltage to 12V. This example shows the importance of checking thermal limits in the datasheet. 13. Frequently Asked Questions (FAQ) Q1: Is the GYD-9E isolated? A: No. It is a non-isolated buck converter. The input ground and output ground are common.

[ V_OUT = 0.8V \times \left(1 + \fracR1R2\right) ]