参数资料
型号: NCP1729SN35T1G
厂商: ON Semiconductor
文件页数: 13/22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
?V out
+
1
OSC
6
V in
+
2
5
+
100 k
3
4
Capacitors = 3.3 m F
Figure 30. Load Regulated Negative Output Voltage
A zener diode can be used with the shutdown input to provide closed loop regulation performance. This significantly reduces
the converter ’s output resistance and dramatically enhances the load regulation. For closed loop operation, the desired
regulated output voltage must be lower in magnitude than ?V in . The output will regulate at a level of ?V Z + V th(SHDN) . Note
that the shutdown input voltage threshold is typically 0.5 V in and therefore, the regulated output voltage will change
proportional to the converter ’s input. This characteristic will not present a problem when used in applications with constant
input voltage. In this case the zener breakdown was measured at 25 m A. The performance characteristics for the above
converter are shown below. Note that the dashed curve sections represent the converter ’s open loop performance.
?1.0
?2.0
?3.0
T A = 25 ° C
A
B
Curve
V in (V)
V z (V)
V out (V)
?4.0
A
B
3.3
5.0
3.9
6.5
?2.1
?3.8
?5.0
0
10
20
30
40
50
60
70
I out , OUTPUT CURRENT (mA)
Figure 31. Load Regulation, Output Voltage vs.
Output Current
http://onsemi.com
13
相关PDF资料
PDF描述
VI-J41-EX-S CONVERTER MOD DC/DC 12V 75W
HCM18DRAI CONN EDGECARD 36POS R/A .156 SLD
VI-24P-EX-S CONVERTER MOD DC/DC 13.8V 75W
VI-24N-EX-S CONVERTER MOD DC/DC 18.5V 75W
VI-24M-EX-S CONVERTER MOD DC/DC 10V 75W
相关代理商/技术参数
参数描述
NCP1729SN35T1G 制造商:ON Semiconductor 功能描述:Power Supply IC
NCP1800DM41R2 功能描述:电池管理 4.1V Single Cell RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
NCP1800DM41R2G 功能描述:电池管理 4.1V Single Cell Lithium-Ion Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
NCP1800DM42R2 功能描述:电池管理 4.2V Single Cell RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
NCP1800DM42R2G 功能描述:电池管理 4.2V Single Cell Lithium-Ion Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel