SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
1.2 mm
Surface Mount:
YES
Switcher Configuration:
BOOST
Switching Frequency-Max:
1000 kHz
Technology:
BIPOLAR
Temperature Grade:
AUTOMOTIVE
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
GULL WING
Terminal Pitch:
0.5 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
LT3959EFE#PBF Frequently Asked Questions (FAQs)
A good PCB layout for optimal thermal performance involves placing the LT3959EFE#PBF near a thermal pad or a heat sink, and ensuring that there are no thermal barriers between the device and the heat sink. Additionally, using a 2-layer or 4-layer PCB with a solid ground plane can help to dissipate heat more efficiently.
To ensure reliable start-up of the LT3959EFE#PBF, make sure that the input voltage rises monotonically and does not have any negative voltage spikes. Also, ensure that the input capacitor is properly sized to handle the inrush current during start-up.
The maximum allowed voltage on the EN pin of the LT3959EFE#PBF is 6V. Exceeding this voltage can cause damage to the device.
The LT3959EFE#PBF is rated for operation up to 125°C, but it's recommended to derate the output current and voltage at higher temperatures to ensure reliable operation. Consult the datasheet for more information on thermal derating.
To troubleshoot issues with the LT3959EFE#PBF not turning on, check the input voltage, the EN pin voltage, and the output voltage. Ensure that the input voltage is within the recommended range, the EN pin is properly biased, and there are no shorts or open circuits on the output.
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LT3959EFE#PBF Overview
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