LM20333MH National Semiconductor, LM20333MH Datasheet - Page 17

• Manufacturer Part Number: LM20333MH
• Description: BUCK REG, 3A, ADJ, POWERWISE, 20TSSOP
• Manufacturer: National Semiconductor

Specifications of LM20333MH

• Primary Input Voltage: 36V
• No. Of Outputs: 1
• Output Voltage: 32V
• Output Current: 3A
• Voltage Regulator Case Style: TSSOP
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

the converter and can improve efficiency. Voltage accuracy
at the load is important so make sure feedback voltage sense
is made at the load. Doing so will correct for voltage drops at
the load and provide the best output accuracy.
6. Provide adequate device heatsinking. For most 3A designs
a four layer board is recommended. Use as many vias as is
possible to connect the EP to the power plane heatsink. For
FIGURE 13. Schematic of LM20333 Highlighting Layout Sensitive Nodes
17
best results use a 5x4 via array with a minimum via diameter
of 12 mils. "Via tenting" with the solder mask may be neces-
sary to prevent wicking of the solder paste applied to the EP.
See the Thermal Considerations section to ensure enough
copper heatsinking area is used to keep the junction temper-
ature below 125°C.
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