ncp1521b ON Semiconductor, ncp1521b Datasheet - Page 6

• Manufacturer Part Number: ncp1521b
• Description: 1.5 Mhz, 600 Ma Stepdown Dcdc Converter
• Manufacturer: ON Semiconductor

-0.5%
-1.0%
100%
100%
1.0%
0.5%
95%
90%
85%
80%
75%
70%
65%
60%
55%
50%
95%
90%
85%
80%
75%
70%
65%
60%
55%
50%
0%
Figure 9. Output Voltage Accuracy vs. Temperature
-40
0
0
Figure 13. Efficiency vs. Output Current
Figure 11. Efficiency vs. Output Current
100
100
I
OUT
(V
(V
I
OUT
IN
IN
, OUTPUT CURRENT (mA)
(V
= 3.6 V, V
= 3.6 V, V
200
, OUTPUT CURRENT (mA)
200
0
TEMPERATURE (°C)
IN
= 3.6 V, T
25°C
300
300
OUT
OUT
V
V
A
OUT
OUT
= 1.2 V)
I
= 1.2 V)
OUT
= 255C)
40
I
I
400
-40 °C
400
OUT
OUT
= 1.8 V
= 0.9 V
= 600 mA
V
85°C
OUT
= 30 mA
= 30 mA
= 3.3 V
500
500
http://onsemi.com
NCP1521B
80
600
600
6
-0.5%
-1.0%
100%
1.0%
0.5%
95%
90%
85%
80%
75%
70%
65%
60%
55%
50%
0%
Figure 10. Output Voltage Accuracy vs. Temperature
1.8
1.7
1.6
1.5
1.4
1.3
-40
0
2.7
V
Figure 14. Switching Frequency vs. Input
V
IN
IN
Figure 12. Efficiency vs. Output Current
Voltage (V
= 3.6 V
100
= 2.7 V
3.2
(V
25°C
V
OUT
I
IN
V
OUT
(V
V
IN
= 3.6 V
IN
200
, OUTPUT CURRENT (mA)
OUT
= 5.5 V
, INPUT VOLTAGE (V)
0
= 1.2 V, I
V
OUT
TEMPERATURE (°C)
IN
3.7
V
= 2.7 V
= 1.2 V, T
= 1.2 V, I
IN
= 5.5 V
300
OUT
4.2
A
= 200 V)
OUT
= 255C)
40
400
= 300 mA)
85°C
-40 °C
4.7
500
5.2
80
600