BUY LT8612IUDE#TRPBF https://www.utsource.net/itm/p/12609351.html
| Parameter | Description | Value |
|---|---|---|
| Part Number | Part number of the device | LT8612IUDE#TRPBF |
| Function | Type of device | Synchronous Step-Down (Buck) Converter |
| Input Voltage Range | Range of input voltage the device can handle | 3V to 42V |
| Output Voltage Range | Adjustable output voltage range | 0.97V to 18V |
| Switching Frequency | Frequency at which the internal switch operates | 2MHz |
| Peak Efficiency | Maximum efficiency achievable | 95% |
| Package Type | Type of packaging | 3mm × 4mm LQFN |
| Thermal Shutdown | Protection feature that shuts down the device if it overheats | Yes |
| Short Circuit Protection | Protects against short circuits on the output | Yes |
| Operating Temperature | Temperature range in which the device can operate effectively | -40°C to 125°C |
| Quiescent Current | Current consumed by the device when not supplying load | 2.5μA |
| Soft-Start Time | Time taken for the output voltage to ramp up from zero | 2ms |
| Pin Count | Number of pins on the package | 24 |
Power Supply Connection: Connect the input power supply within the specified input voltage range (3V to 42V). Ensure proper decoupling capacitors are placed close to the VIN and GND pins.
Output Configuration: Set the desired output voltage using external resistors connected to the FB pin. Refer to the datasheet for specific resistor values.
Inductor Selection: Choose an inductor based on the switching frequency (2MHz) and output current requirements. The recommended inductance value is typically between 1μH and 4.7μH.
Capacitor Selection: Select output capacitors with low ESR to minimize output ripple. Ceramic capacitors are recommended due to their low ESR and high-frequency performance.
PCB Layout: Pay attention to the PCB layout guidelines provided in the datasheet. Proper layout is crucial for optimal thermal performance and minimizing noise.
Thermal Management: Ensure adequate heat dissipation, especially under high load conditions. Consider using a heatsink or placing the device on a large copper area.
Protection Features: The device includes thermal shutdown and short-circuit protection. These features will automatically protect the device from damage in case of overheating or short circuits.
Soft-Start: The soft-start feature reduces inrush current during startup. It ramps up the output voltage over a period of 2ms.
Testing and Validation: After assembly, test the circuit under various operating conditions to ensure stability and performance meet the design requirements.
