ncp1522 ON Semiconductor, ncp1522 Datasheet - Page 6

• Manufacturer Part Number: ncp1522
• Description: 3.0 Mhz, 600 Ma, Highefficiency, Low Quiescent Current, Adjustable Output Voltage Stepdown Converter
• Manufacturer: ON Semiconductor

100
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.0
1.5
1.0
0.5
0.0
90
80
70
60
50
40
30
-40
0
0
Figure 14. Output Voltage vs. Enable Input Pin
I
OUT
V
OUT
Figure 10. Efficiency vs. Output Current
-20
Figure 12. Frequency vs. Temperature
= 300 mA
0.2
100
= 0.9 V
V
I
OUT
IN
0
0.4
, ENABLE INPUT VOLTAGE (V)
, OUTPUT CURRENT (mA)
TEMPERATURE (°C)
200
V
OUT
(V
20
0.6
Voltage
IN
= 1.8 V
300
= 4.0 V)
40
0.8
400
V
OUT
60
1.0
= 3.3 V
V
V
500
IN
IN
80
1.2
= 5.5 V
= 3.6 V
http://onsemi.com
NCP1522
100
600
1.4
6
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
300
250
200
150
100
3.6
3.4
3.2
3.0
2.8
2.6
2.4
3.0
2.5
2.0
1.5
1.0
0.5
0.0
50
0
2.7
2.7
0
V
V
OUT
OUT
Figure 15. PFM/PWM Threshold vs. Input
Figure 11. Frequency vs. Input Voltage
100
V
= 3.3 V
3.2
3.2
= 0.9 V
OUT
I
OUT
Figure 13. Load Regulation
I
OUT
= 1.8 V
200
V
= 300 mA
, OUTPUT CURRENT (mA)
V
IN
3.7
3.7
IN
, INPUT VOLTAGE (V)
, INPUT VOLTAGE (V)
300
Voltage
4.2
4.2
400
I
OUT
4.7
4.7
500
= 600 mA
V
T
A
OUT
= 25°C
5.2
5.2
600
= 1.8 V
700
5.7
5.7