551011367-061 National Semiconductor, 551011367-061 Datasheet - Page 20

• Manufacturer Part Number: 551011367-061
• Description: BOARD WEBENCH LM2577,LM2585/87
• Manufacturer: National Semiconductor
• Series: WEBENCH® Buildit Boardr

Specifications of 551011367-061

• Main Purpose: DC/DC, Step Up
• Regulator Topology: Boost
• Board Type: Bare (Unpopulated)
• Utilized Ic / Part: LM2577, LM2585, LM2587
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Current - Output: -
• Voltage - Output: -
• Voltage - Input: -
• Power - Output: -
• Frequency - Switching: -
• Outputs And Type: -
• Other names: *551011367-061; 551011367-061

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Application Hints
Note: Pin numbers shown are for TO-220 (T) package.
A: Output Voltage Change, 100 mV/div. (AC-coupled)
B: Load current, 0.2 A/div
Horizontal: 5 ms/div
FIGURE 15. Load Transient Response of Step-Up
Regulator of Figure 13
FIGURE 14. Line Regulation (Typical) of Step-Up Regulator of Figure 13
FIGURE 13. Step-up Regulator Delivers 12V from a 5V Input
(Continued)
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A: Switch pin voltage, 10 V/div
B: Switch pin current, 2 A/div
C: Inductor current, 2 A/div
D: Output ripple voltage, 100 mV/div (AC-coupled)
Horizontal: 5 µs/div
FIGURE 16. Switching Waveforms of Step-Up
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Regulator of Figure 13
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