SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.1 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
750 kHz
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
LM20146MHE/NOPB Frequently Asked Questions (FAQs)
A good PCB layout for the LM20146MHE/NOPB should include a solid ground plane, wide power traces, and a thermal relief pattern under the device to facilitate heat dissipation. TI provides a recommended PCB layout in the datasheet.
To ensure stability, it's essential to follow the recommended output capacitor selection guidelines, use a low-ESR capacitor, and ensure the output voltage is within the specified range. Additionally, the input capacitor should be placed close to the device and have a low ESL.
The LM20146MHE/NOPB can handle input voltages up to 42V, but it's recommended to operate within the specified input voltage range (4.5V to 36V) for optimal performance and reliability.
The LM20146MHE/NOPB is rated for operation up to 125°C, but it's essential to consider the device's power dissipation and thermal management when operating in high-temperature environments. Ensure proper heat sinking and thermal design to prevent overheating.
To troubleshoot issues, start by verifying the input voltage, output voltage, and current. Check the PCB layout, component selection, and thermal design. Use oscilloscopes and thermal imaging tools to identify the root cause of the issue. Consult the datasheet and application notes for guidance.
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LM20146MHE/NOPB Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
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