ncp1521 ON Semiconductor, ncp1521 Datasheet - Page 7

• Manufacturer Part Number: ncp1521
• Description: 1.5 Mhz, 600 Ma, Highefficiency, Low Quiescent Current, Adjustable Output Voltage Stepdown Converter
• Manufacturer: ON Semiconductor

-0.5
-1.0
-1.5
-2.0
-0.5
-1.0
-1.5
-2.0
2.0
1.5
1.0
0.5
0.0
2.0
1.5
1.0
0.5
0.0
-50
-50
Figure 21. Load Transient Response in PWM
V
V
IN
IN
= 4.0 V
= 3.6 V
Figure 17. Output Voltage Accuracy
Figure 19. Output Voltage Accuracy
I
OUT
0
0
Operation (V
10 ms/Div
I
OUT
TEMPERATURE (°C)
TEMPERATURE (°C)
= 100 mA
(V
= 600 mA
(V
I
I
OUT
I
OUT
OUT
OUT
OUT
= 100 mA
= 600 mA
= 300 mA
50
50
= 0.9 V)
= 3.3 V)
IN
= 3.6 V)
I
OUT
I
200 mA/Div
V
50 mV/Div
OUT
OUT
= 300 mA
100
100
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NCP1521
150
150
7
-0.5
-1.0
-1.5
-2.0
2.0
1.5
1.0
0.5
0.0
-50
Figure 22. Short Circuit Protection (V
Figure 20. Load Transient Response in PWM
V
2.5 ms/Div
IN
= 3.6 V
Figure 18. Output Voltage Accuracy
10 ms/Div
0
Operation (V
TEMPERATURE (°C)
(V
I
I
OUT
I
OUT
OUT
OUT
= 100 mA
= 600 mA
= 300 mA
= 1.8 V)
50
IN
= 3.6 V)
I
200 mA/Div
OUT
I
500 mA/Div
V
500 mV/Div
LX
V
50 mV/Div
OUT
OUT
100
IN
= 3.6 V)
150