参数资料
型号: NCP1729SN35T1G
厂商: ON Semiconductor
文件页数: 19/22页
文件大小: 0K
描述: IC REG SWITCHD CAP INV ADJ 6TSOP
标准包装: 1
类型: 切换式电容器(充电泵),反相
输出类型: 可调式
输出数: 1
输出电压: -1.15 V ~ -5.5 V,2.3 V ~ 11 V
输入电压: 1.15 V ~ 5.5 V
频率 - 开关: 35kHz
电流 - 输出: 50mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74,SOT-457
包装: 标准包装
供应商设备封装: 6-TSOP
产品目录页面: 1118 (CN2011-ZH PDF)
其它名称: NCP1729SN35T1GOSDKR
NCP1729
R 1
10 k
50
1
6
Q 2
+
R 2
V out
V in
+
2
OSC
5
50
Q 1
C 1
+
C 2
C 3
Capacitors = 220 m F
3
4
Q 1 = PZT751
Q 2 = PZT651
Figure 44. Line and Load Regulated Positive Output Voltage Doubler with High Current Capability
This converter is a combination of Figures 42 and the shunt regulator to close the loop. In this case the anode of the regulator
is connected to ground. It provides a line and load regulated output of 7.6 V at up to 300 mA with a input voltage of 5.0 V. The
output will regulate at a level of V ref (R 2 /R 1 + 1). The open loop configuration is the dashed line and the closed loop is the solid
line. The performance characteristics are shown below.
8.8
8.0
8.6
8.4
8.2
V in = 5.0 V
R out = 1.8 W Open Loop
R out = 0.5 W Closed Loop
R 1 = 10 k
R 2 = 51.3 k W
T A = 25 ° C
7.0
6.0
5.0
8.0
4.0
7.8
7.6
7.4
3.0
2.0
I out = 100 mA
R 1 = 10 k
R 2 = 51.3 k W
T A = 25 ° C
7.2
0
0.1
0.2
0.3
0.4
0.5
0.6
1.0
1.0
2.0
3.0
4.0
5.0
6.0
I out , OUTPUT CURRENT (A)
Figure 45. Current Boosted Close Loop Load
Regulation, Output Voltage vs. Output Current
http://onsemi.com
19
V in , INPUT VOLTAGE (V)
Figure 46. Current Boosted Close Loop Line
Regulation, Output Voltage vs. Input Voltage
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NCP1729SN35T1G 制造商:ON Semiconductor 功能描述:Power Supply IC
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