LM2588S-12 National Semiconductor, LM2588S-12 Datasheet - Page 12

• Manufacturer Part Number: LM2588S-12
• Description: IC, FLYBACK REGULATOR, TO-263-7
• Manufacturer: National Semiconductor

Specifications of LM2588S-12

• Primary Input Voltage: 5V
• No. Of Outputs: 1
• Output Voltage: 12V
• Output Current: 5A
• No. Of Pins: 7
• Operating Temperature Range: -40°C To +125°C
• Supply Voltage Range: 4V To 40V
• Termination Type: SMD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Flyback Regulator Operation
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As shown in Figure 4, the LM2588 can be used as a flyback regulator by using a minimum number of external components. The switching waveforms of this
regulator are shown in Figure 5. Typical Performance Characteristics observed during the operation of this circuit are shown in Figure 6.
FIGURE 4. 12V Flyback Regulator Design Example
Typical Performance Characteristics
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A: Switch Voltage, 10V/div
B: Switch Current, 5A/div
C: Output Rectifier Current, 5A/div
D: Output Ripple Voltage, 100 mV/div
AC-Coupled
FIGURE 5. Switching Waveforms
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