NCP1410
TYPICAL OPERATING CHARACTERISTICS
3
2
1
3.0 V
0
2.2 V
–1
–2
–3
1.0
L = 22
mH
V
OUT
= 3.3 V
C
IN
= 10
µF
C
OUT
= 33
µF
10
V
IN
= 1.8 V
OUTPUT VOLTAGE CHANGE (%)
OUTPUT VOLTAGE CHANGE (%)
3
2
1
3.0 V
0
2.2 V
–1
–2
–3
1.0
L = 15
mH
V
OUT
= 3.3 V
C
IN
= 10
µF
C
OUT
= 33
µF
10
V
IN
= 1.8 V
100
1000
100
1000
OUTPUT LOADING CURRENT, I
LOAD
/mA
OUTPUT LOADING CURRENT, I
LOAD
/mA
Figure 15. Output Voltage Change vs.
Load Current
200
RIPPLE VOLTAGE, V
RIPPLE
/mV
p–p
RIPPLE VOLTAGE, V
RIPPLE
/mV
p–p
180
160
140
120
100
80
60
40
20
0
1.0
1.5
2.0
2.5
3.0
100 mA
200 mA
V
OUT
= 3.3 V
C
IN
= 10
µF
C
OUT
= 33
µF
L = 22
mH
200
180
160
140
120
100
80
60
40
20
0
1.0
Figure 16. Output Voltage Change vs.
Load Current
V
OUT
= 3.3 V
C
IN
= 10
µF
C
OUT
= 33
µF
L = 15
mH
200 mA
100 mA
1.5
2.0
2.5
3.0
BATTERY INPUT VOLTAGE, V
BATT
/V
BATTERY INPUT VOLTAGE, V
BATT
/V
Figure 17. Output Ripple Voltage vs.
Battery Input Voltage
NO LOAD OPERATING CURRENT, I
BATT
/µA
14
12
10
8.0
6.0
4.0
2.0
0
0
1.0
2.0
3.0
4.0
5.0
INPUT VOLTAGE AT OUT PIN, V
OUT
/V
6.0
Figure 18. Output Ripple Voltage vs.
Battery Input Voltage
(V
IN
= 2.2 V, V
OUT
= 3.3 V, I
LOAD
= 100 mA; L = 22
µH,
C
OUT
= 33
µF)
Upper Trace: Output Voltage Waveform, 2.0 V/Division
Lower Trace: Shutdown Pin Waveform, 1.0 V/Division
Figure 19. No Load Operating Current vs.
Input Voltage at OUT Pin
Figure 20. Startup Transient Response
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