ncp1450-d ON Semiconductor, ncp1450-d Datasheet - Page 15
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ncp1450-d
Manufacturer Part Number
ncp1450-d
Description
Pwm Step?up Dc?dc Controller
Manufacturer
ON Semiconductor
Datasheet
1.NCP1450-D.pdf
(22 pages)
100
2.1
2.0
1.9
1.8
1.7
1.6
5.2
5.1
5.0
4.9
4.8
4.7
80
60
40
20
0
0.01
0
0
V
V
V
V
V
V
Figure 63. NCP1450ASN19T1 Output Voltage
Figure 65. NCP1450ASN50T1 Output Voltage
Figure 67. NCP1450ASN30T1 Efficiency vs.
IN
IN
IN
IN
IN
V
IN
IN
= 2.5 V
= 2.0 V
= 1.5 V
= 1.2 V
= 0.9 V
= 0.9 V
V
V
= 0.9 V
IN
IN
200
200
= 1.5 V
0.1
= 1.2 V
vs. Output Current (Ext. BJT)
vs. Output Current (Ext. BJT)
V
IN
Output Current (Ext. BJT)
I
I
I
O
O
O
= 2.0 V
, OUTPUT CURRENT (mA)
, OUTPUT CURRENT (mA)
, OUTPUT CURRENT (mA)
V
IN
V
V
= 1.5 V
IN
IN
400
400
1
= 1.2 V
= 2.5 V
600
600
10
V
V
V
IN
IN
IN
NCP1450ASN50T1
L = 10 mH
Q = MMJT9410
R
C
C
T
NCP1450ASN30T1
L = 10 mH
Q = MMJT9410
R
C
C
T
NCP1450ASN19T1
L = 10 mH
Q = MMJT9410
R
C
C
T
= 4.5 V
= 4.0 V
= 3.0 V
A
A
A
b
b
OUT
b
b
OUT
b
b
OUT
= 25°C
= 25°C
= 25°C
= 560 W
= 0.003 mF
= 560 W
= 0.003 mF
= 560 W
= 0.003 mF
= 220 mF
= 220 mF
= 220 mF
800
800
100
http://onsemi.com
NCP1450A
1000
1000
1000
15
100
100
3.1
3.0
2.9
2.8
2.7
3.2
80
60
40
20
80
60
40
20
0
0
0.01
0.01
0
V
V
V
V
V
Figure 64. NCP1450ASN30T1 Output Voltage
IN
IN
IN
IN
IN
V
Figure 66. NCP1450ASN19T1 Efficiency vs.
Figure 68. NCP1450ASN50T1 Efficiency vs.
V
IN
= 4.0 V
= 3.0 V
= 2.5 V
= 2.0 V
= 0.9 V
IN
= 0.9 V
= 1.2 V
200
0.1
0.1
vs. Output Current (Ext. BJT)
Output Current (Ext. BJT)
Output Current (Ext. BJT)
I
I
I
O
O
O
V
, OUTPUT CURRENT (mA)
, OUTPUT CURRENT (mA)
, OUTPUT CURRENT (mA)
V
IN
IN
= 1.2 V
= 0.9 V
V
400
IN
1
1
V
V
IN
= 1.5 V
IN
= 2.0 V
= 1.5 V
600
10
10
NCP1450ASN30T1
L = 10 mH
Q = MMJT9410
R
C
C
T
NCP1450ASN19T1
L = 10 mH
Q = MMJT9410
R
C
C
T
V
NCP1450ASN50T1
L = 10 mH
Q = MMJT9410
R
C
C
T
A
A
A
b
b
OUT
b
b
OUT
IN
b
b
OUT
= 25°C
= 25°C
V
= 560 W
= 0.003 mF
= 560 W
= 0.003 mF
= 25°C
= 560 W
= 0.003 mF
= 4.5 V
IN
= 220 mF
= 220 mF
= 220 mF
= 2.5 V
V
V
800
100
100
IN
IN
= 1.5 V
= 1.2 V
1000
1000
1000