Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the input and output traces as short as possible. Additionally, it's recommended to use a common mode choke or ferrite bead to filter out high-frequency noise.
The LM120K-12/883 is rated for operation from -55°C to 125°C. To ensure operation within this range, ensure proper heat sinking, avoid overheating, and use a thermally conductive material to attach the device to a heat sink or PCB.
Texas Instruments recommends using a 10uF to 22uF ceramic or film capacitor with a voltage rating of at least 50V. The capacitor should be placed as close to the input pin as possible to minimize noise and ensure stability.
Yes, the LM120K-12/883 can be used in switching regulator applications. However, it's essential to ensure that the device is properly bypassed and filtered to prevent high-frequency noise from affecting its operation.
To troubleshoot oscillations or instability issues, check the PCB layout for proper grounding and decoupling, ensure the input and output capacitors are properly sized and placed, and verify that the device is operated within its specified temperature range. Additionally, check for any noise or interference from nearby components or systems.
LM120K-12/883 datasheet
by Texas Instruments
