Texas Instruments recommends a compact layout with short traces, and placing the device close to the power source. Additionally, separating analog and digital grounds, and using a solid ground plane can help minimize noise. Refer to the TI application note 'PCB Layout Guidelines for Switching Regulators' for more information.
The output capacitor selection depends on the output voltage, current, and ripple requirements. A general rule of thumb is to use a capacitor with a minimum capacitance of 10uF, and an ESR (Equivalent Series Resistance) of less than 100mΩ. TI recommends using a ceramic or tantalum capacitor with a voltage rating of at least 2x the output voltage.
Although the datasheet specifies a maximum input voltage of 15V, TI recommends limiting the input voltage to 12V to ensure reliable operation and minimize the risk of damage. Exceeding 12V may cause the device to overheat or fail.
The TLV3011AIDBVTG4 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. Consult the datasheet and TI's thermal design guidelines for more information.
Common causes of oscillations or instability include incorrect output capacitor selection, inadequate PCB layout, or insufficient input decoupling. Check the output voltage ripple, input voltage, and current draw. Use an oscilloscope to analyze the output voltage and current waveforms. Consult the TI application note 'Troubleshooting Switching Regulators' for more guidance.