ncp1450-d ON Semiconductor, ncp1450-d Datasheet - Page 11

• Manufacturer Part Number: ncp1450-d
• Description: Pwm Step?up Dc?dc Controller
• Manufacturer: ON Semiconductor

180
160
140
120
100
200
1.0
0.8
0.6
0.4
0.2
0.0
1.0
0.8
0.6
0.4
0.2
0.0
80
60
40
20
0
−50
−50
0
NCP1450ASN30T1
L = 10 mH
Q = NTGS3446T1
C
T
Figure 43. NCP1450ASN30T1 Ripple Voltage
NCP1450ASN19T1
L = 22 mH
C
I
NCP1450ASN50T1
L = 22 mH
C
I
O
O
A
Figure 39. NCP1450ASN19T1 Startup/Hold
Figure 41. NCP1450ASN50T1 Startup/Hold
OUT
OUT
OUT
= 25°C
= 0 mA
= 0 mA
V
−25
−25
= 220 mF
= 0.1 mF
= 0.1 mF
IN
200
= 0.9 V
I
Voltage vs. Temperature
Voltage vs. Temperature
O
, OUTPUT CURRENT (mA)
vs. Output Current
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
400
V
V
V
V
V
IN
start
hold
25
start
hold
25
= 1.2 V
V
IN
600
= 2.0 V
50
50
V
V
IN
800
IN
= 1.5 V
75
75
= 2.5 V
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NCP1450A
1000
100
100
11
200
180
160
140
120
100
200
180
160
140
120
100
1.0
0.8
0.6
0.4
0.2
0.0
80
60
40
20
80
60
40
20
0
0
−50
0
0
V
NCP1450ASN30T1
L = 22 mH
C
I
NCP1450ASN19T1
L = 10 mH
Q = NTGS3446T1
C
T
Figure 42. NCP1450ASN19T1 Ripple Voltage
Figure 44. NCP1450ASN50T1 Ripple Voltage
O
IN
A
Figure 40. NCP1450ASN30T1 Startup/Hold
OUT
OUT
V
= 0 mA
= 25°C
= 0.9 V
IN
V
−25
= 0.1 mF
= 220 mF
= 1.2 V
IN
200
200
= 1.5 V
V
I
I
O
Voltage vs. Temperature
O
IN
V
, OUTPUT CURRENT (mA)
, OUTPUT CURRENT (mA)
IN
vs. Output Current
vs. Output Current
= 0.9 V
TEMPERATURE (°C)
0
= 2.0 V
400
400
V
IN
= 2.5 V
V
V
start
hold
25
V
IN
V
V
IN
= 1.2 V
600
IN
600
= 3.0 V
= 4.0 V
NCP1450ASN50T1
L = 10 mH
Q = NTGS3446T1
C
T
50
A
OUT
= 25°C
= 220 mF
V
V
800
800
IN
IN
75
= 4.5 V
= 1.5 V
1000
1000
100