LM2577N-15 NSC [National Semiconductor], LM2577N-15 Datasheet - Page 18
LM2577N-15
Manufacturer Part Number
LM2577N-15
Description
SIMPLE SWITCHER-R Step-Up Voltage Regulator
Manufacturer
NSC [National Semiconductor]
Datasheet
1.LM2577N-15.pdf
(27 pages)
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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
(Continued)
FIGURE 13. Step-up Regulator Delivers 12V from a 5V Input
DS011468-15
18
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
DS011468-14
Regulator of Figure 13
DS011468-13
DS011468-16
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