ncp1400a ON Semiconductor, ncp1400a Datasheet - Page 8

• Manufacturer Part Number: ncp1400a
• Description: 100ma, Fixed Frequency Pwm Step-up Micropower Switching Regulator
• Manufacturer: ON Semiconductor

200
160
120
180
160
140
120
100
1.0
0.8
0.6
0.4
0.2
0.0
80
40
80
60
−50
−50
1.5
Figure 24. NCP1400ASNXXT1 LX Pin On−State
Figure 22. NCP1400ASN30T1 LX Pin On−State
NCP1400ASN30T1
L = 22 mH
C
I
NCP1400ASNXXT1
V
T
O
Figure 20. NCP1400ASN30T1 Startup/Hold
NCP1400ASN30T1
V
OUT
A
LX
LX
= 0 mA
2.0
= 25°C
−25
−25
= 0.4 V
= 0.4 V
= 10 mF
T
T
A
A
Current vs. Output Voltage
2.5
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
V
Voltage vs. Temperature
Current vs. Temperature
OUT
, OUTPUT VOLTAGE (V)
0
0
3.0
V
V
start
hold
3.5
25
25
4.0
50
50
4.5
75
75
http://onsemi.com
5.0
NCP1400A
100
5.5
100
8
260
220
180
140
100
1.0
0.8
0.6
0.4
0.2
0.0
5.0
4.0
3.0
2.0
1.0
−50
0
−50
1.5
Figure 23. NCP1400ASN50T1 LX Pin On−State
NCP1400ASN50T1
L = 22 mH
C
I
NCP1400ASNXXT1
V
T
NCP1400ASN50T1
V
O
Figure 21. NCP1400ASN50T1 Startup/Hold
A
LX
OUT
LX
Figure 25. NCP1400ASNXXT1 LX Switch
= 0 mA
2.0
= 25°C
= 0.4 V
−25
= 0.4 V
−25
On−Resistance vs. Output Voltage
= 10 mF
T
T
A
A
2.5
, AMBIENT TEMPERATURE (°C)
, AMBIENT TEMPERATURE (°C)
V
Current vs. Temperature
Voltage vs. Temperature
OUT
0
0
, OUTPUT VOLTAGE (V)
3.0
V
V
start
hold
3.5
25
25
4.0
50
50
4.5
75
75
5.0
100
100
5.5