lm2577sx-adj National Semiconductor Corporation, lm2577sx-adj Datasheet - Page 20
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lm2577sx-adj
Manufacturer Part Number
lm2577sx-adj
Description
Simple Switcher Step-up Voltage Regulator
Manufacturer
National Semiconductor Corporation
Datasheet
1.LM2577SX-ADJ.pdf
(31 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM2577SX-ADJ
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
lm2577sx-adj/NOPB
Manufacturer:
TI/德州仪器
Quantity:
20 000
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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)
01146815
20
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
01146814
Regulator of Figure 13
01146813
01146816