NCP1400A
http://onsemi.com
8
0.6
0.4
0.2
0.8
1.0
0.0
120
80
40
160
200
180
140
100
220
260
T
A
, AMBIENT TEMPERATURE (°C) T
A
, AMBIENT TEMPERATURE (°C)
Figure 20. NCP1400ASN30T1 Startup/Hold
Voltage vs. Temperature
Figure 21. NCP1400ASN50T1 Startup/Hold
Voltage vs. Temperature
Figure 22. NCP1400ASN30T1 LX Pin On−State
Current vs. Temperature
T
A
, AMBIENT TEMPERATURE (°C)
Figure 23. NCP1400ASN50T1 LX Pin On−State
Current vs. Temperature
T
A
, AMBIENT TEMPERATURE (°C)
Figure 24. NCP1400ASNXXT1 LX Pin On−State
Current vs. Output Voltage
V
OUT
, OUTPUT VOLTAGE (V)
−50 25050−25 75 100
−50 50250−25 75 100 −50 0−25 25 50 75 100
140
120
100
80
160
180
60
LX
, LX PIN ON−STATE CURRENT (mA) V
start
hold
, STARTUP AND HOLD VOLTAGE (V)
3.0
2.0
1.0
1.5 3.53.0 4.0
4.0
5.0
0
5.
4.5 5.0
Figure 25. NCP1400ASNXXT1 LX Switch
On−Resistance vs. Output Voltage
R
DS(on)
, LX SWITCH ON−RESISTANCE (W)
0.6
0.4
0.2
0.8
1.0
0.0
−50 25050−25 75 100
2.52.01.5 3.53.0 4.0 5.54.5 5.02.52.0
NCP1400ASN30T1
L = 22 mH
C
OUT
= 10 mF
I
O
= 0 mA
NCP1400ASN50T1
V
LX
= 0.4 V
NCP1400ASN50T1
L = 22 mH
C
OUT
= 10 mF
I
O
= 0 mA
NCP1400ASN30T1
V
LX
= 0.4 V
NCP1400ASNXXT1
V
LX
= 0.4 V
T
A
= 25°C
NCP1400ASNXXT1
V
LX
= 0.4 V
T
A
= 25°C
V
OUT
, OUTPUT VOLTAGE (V)
V
start
, V
hold
, STARTUP AND HOLD VOLTAGE (V
I
LX
, LX PIN ON−STATE CURRENT (mA)
LX
, LX PIN ON−STATE CURRENT (mA)
V
start
V
hold
V
start
V
hold