LM2587S-3.3 National Semiconductor, LM2587S-3.3 Datasheet - Page 21

• Manufacturer Part Number: LM2587S-3.3
• Description: IC, FLYBACK REGULATOR, TO-263-5
• Manufacturer: National Semiconductor

Specifications of LM2587S-3.3

• Input Voltage: 40V
• Output Current: 5A
• Output Voltage: 3.3V
• No. Of Outputs: 1
• Supply Voltage Range: 4V To 40V
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Termination Type: SMD
• Filter Terminals: SMD
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

*The LM2587 will require a heat sink in these applications. The size of the heat sink will depend on the maximum ambient temperature. To calculate the thermal
resistance of the IC and the size of the heat sink needed, see the “Heat Sink/Thermal Considerations” section in the Application Hints.
FIGURE 39. +24V to +36V Boost Regulator
FIGURE 40. +24V to +48V Boost Regulator
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