Description:VON / VOFF UVLO of 4.75 V / 4.55 V ; 19 ns / 13 ns Rise and Fall Times with 1 nF LoadLDO ; Non-Inverting Logic Configuration; 23 ns Typical Delay Time; Peak 2.8 A / 2.5 A Sink / Source at VDD = 12 V; Lead (Pb)-Free Green 5-Pin SOT23 Package; Gate Driver; -40°C to +125°C Operation Temperature; 5 V to 18 V Operating Range; TTL-Compatible Input Thresholds; ±1% at 25°C, ±2.5% Total VariationGeneral ; 200 µA Maximum Standby Supply Current; 3.3 V, 15 mA Output; 2.5 A Sink / 1.8 A Source at VOUT = 6 V
A good PCB layout for the FAN3180TSX involves keeping the input and output traces separate, using a solid ground plane, and placing the device close to the load. Additionally, using a shielded inductor and keeping the switching node (SW) away from sensitive nodes can help minimize EMI.
The inductor value depends on the input voltage, output voltage, and switching frequency. A good starting point is to use the inductor value recommended in the datasheet (e.g., 1.5 μH). Then, adjust the value based on the specific application requirements, such as output current and ripple voltage.
The maximum ambient temperature for the FAN3180TSX is 85°C. However, the device can operate up to 125°C junction temperature. It's essential to ensure proper thermal management to prevent overheating and ensure reliable operation.
Yes, the FAN3180TSX can be used in a synchronous rectification configuration. This can improve efficiency by reducing the voltage drop across the rectifier. However, it requires careful design and layout to ensure proper operation and minimize EMI.
To ensure proper biasing, connect the EN pin to a voltage source (e.g., VCC) through a resistor (e.g., 10 kΩ). This enables the device and allows it to operate within the recommended voltage range. Additionally, ensure the input voltage (VIN) is within the specified range (4.5 V to 18 V).
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