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参数资料
| 型号： | NCP1450ASN50T1 |
| 厂商： | ON Semiconductor |
| 文件页数： | 15/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM VM 5TSOP |
| 产品变化通告： | LTB Notification 03/Jan/2008 |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 216kHz |
| 占空比： | 90% |
| 电源电压： | 0.6 V ~ 5.5 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 6-TSOP（0.059"，1.50mm 宽）5 引线 |
| 包装： | 剪切带 (CT) |
| 其它名称： | NCP1450ASN50TOSCT |
NCP1450A
2.1
3.2
2.0
V IN = 1.5 V
3.1
V IN = 2.0 V
V IN = 2.5 V
1.9
3.0
1.8
1.7
V IN = 0.9 V
V IN = 1.2 V
NCP1450ASN19T1
L = 10 m H
Q = MMJT9410
R b = 560 W
C b = 0.003 m F
C OUT = 220 m F
T A = 25 ° C
2.9
2.8
V IN = 0.9 V
V IN = 1.5 V
V IN = 1.2 V
NCP1450ASN30T1
L = 10 m H
Q = MMJT9410
R b = 560 W
C b = 0.003 m F
C OUT = 220 m F
T A = 25 ° C
1.6
0
200
400
600
800
1000
2.7
0
200
400
600
800
1000
5.2
I O , OUTPUT CURRENT (mA)
Figure 63. NCP1450ASN19T1 Output Voltage
vs. Output Current (Ext. BJT)
V IN = 4.5 V
100
I O , OUTPUT CURRENT (mA)
Figure 64. NCP1450ASN30T1 Output Voltage
vs. Output Current (Ext. BJT)
5.1
V IN = 4.0 V
80
V IN = 1.5 V
5.0
V IN = 1.5 V
V IN = 2.5 V
V IN = 3.0 V
60
V IN = 1.2 V
NCP1450ASN19T1
4.9
4.8
4.7
V IN = 2.0 V
V IN = 1.2 V
V IN = 0.9 V
NCP1450ASN50T1
L = 10 m H
Q = MMJT9410
R b = 560 W
C b = 0.003 m F
C OUT = 220 m F
T A = 25 ° C
40
20
0
V IN = 0.9 V
L = 10 m H
Q = MMJT9410
R b = 560 W
C b = 0.003 m F
C OUT = 220 m F
T A = 25 ° C
0
200
400
600
800
1000
0.01
0.1
1
10
100
1000
100
I O , OUTPUT CURRENT (mA)
Figure 65. NCP1450ASN50T1 Output Voltage
vs. Output Current (Ext. BJT)
100
I O , OUTPUT CURRENT (mA)
Figure 66. NCP1450ASN19T1 Efficiency vs.
Output Current (Ext. BJT)
V IN = 2.5 V
V IN = 2.0 V
V IN = 4.0 V
V IN = 3.0 V
V IN = 4.5 V
80
V IN = 1.5 V
80 V IN = 2.5 V
60
40
20
V IN = 1.2 V
V IN = 0.9 V
NCP1450ASN30T1
L = 10 m H
Q = MMJT9410
R b = 560 W
C b = 0.003 m F
C OUT = 220 m F
T A = 25 ° C
60
40
20
V IN = 2.0 V
V IN = 0.9 V
V IN = 1.5 V
V IN = 1.2 V
NCP1450ASN50T1
L = 10 m H
Q = MMJT9410
R b = 560 W
C b = 0.003 m F
C OUT = 220 m F
T A = 25 ° C
0
0
0.01
0.1
1
10
100
1000
0.01
0.1
1
10
100
1000
I O , OUTPUT CURRENT (mA)
Figure 67. NCP1450ASN30T1 Efficiency vs.
Output Current (Ext. BJT)
http://onsemi.com
15
I O , OUTPUT CURRENT (mA)
Figure 68. NCP1450ASN50T1 Efficiency vs.
Output Current (Ext. BJT)
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