The TLV3702CD is a high-frequency device, so it's essential to follow good layout practices to minimize noise and ensure proper operation. TI recommends placing the device close to the power supply, using short traces, and avoiding vias under the device. A solid ground plane and decoupling capacitors are also crucial.
The output capacitor selection depends on the desired output voltage ripple, output current, and operating frequency. A general rule of thumb is to choose a capacitor with a low ESR (Equivalent Series Resistance) and a high ripple current rating. TI recommends using a 10uF to 22uF ceramic capacitor with an X5R or X7R dielectric.
The TLV3702CD has an absolute maximum input voltage rating of 6V. However, the recommended operating input voltage range is 2.7V to 5.5V. Exceeding the maximum input voltage can damage the device.
The TLV3702CD is rated for operation up to 125°C. However, the device's performance and reliability may degrade at high temperatures. TI recommends derating the output current and voltage at high temperatures to ensure reliable operation.
To troubleshoot issues with the TLV3702CD, start by checking the input voltage, output voltage, and output current. Verify that the device is properly decoupled and that the layout follows good practices. Use an oscilloscope to check for oscillations or ringing on the output. If the issue persists, consult the TI support forum or contact a TI engineer for assistance.
TLV3702CD datasheet
by Texas Instruments
