LM2577T-ADJ National Semiconductor, LM2577T-ADJ Datasheet - Page 25

• Manufacturer Part Number: LM2577T-ADJ
• Description: IC, STEP-UP VOLTAGE REGULATOR, TO-220-5
• Manufacturer: National Semiconductor

Specifications of LM2577T-ADJ

• Primary Input Voltage: 40V
• No. Of Outputs: 1
• Output Voltage: 12V
• Output Current: 3A
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +125°C
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Application Hints
T1 = Pulse Engineering, PE-65300
D1, D2 = 1N5821
FIGURE 23. Line Regulation (Typical) of Flyback
Regulator of Figure 22, +15V Output
FIGURE 22. Flyback Regulator Easily Provides Dual Outputs
(Continued)
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A: Output Voltage Change, 100 mV/div
B: Output Current, 100 mA/div
Horizontal: 10 ms/div
FIGURE 24. Load Transient Response of Flyback
Regulator of Figure 22, +15V Output
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