参数资料
型号: MAX1720EUT
厂商: ON Semiconductor
文件页数: 8/18页
文件大小: 0K
描述: IC REG SWITCHD CAP INV ADJ 6TSOP
产品变化通告: LTB Notification 03/Jan/2008
标准包装: 3,000
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: -1.5 V ~ -5.5 V,3 V ~ 11 V
输入电压: 1.5 V ~ 5.5 V
频率 - 开关: 12kHz
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: 带卷 (TR)
供应商设备封装: 6-TSOP
其它名称: MAX1720EUTOS
MAX1720
1
OSC
6
V in
+
2
5
+
?V out
3
4
+
+
+
Capacitors = 10 m F
Figure 22. Negative Output Voltage Doubler
A single device can be used to construct a negative voltage doubler. The output voltage is approximately equal to ?2V in minus
the forward voltage drop of each external diode. The performance characteristics for the above converter are shown below.
Note that curves A and C show the circuit performance with economical 1N4148 diodes, while curves B and D are with lower
loss MBRA120E Schottky diodes.
0
?2.0
T A = 25 ° C
Curve
A
V in (V)
3.0
All Diodes
1N4148
R out ( W )
124
A
?4.0
B
B
C
3.0
5.0
MBRA120E
1N4148
115
96
?6.0
C
D
5.0
MBRA120E
94
?8.0
?10.0
D
0
10
20
30
40
I out , OUTPUT CURRENT (mA)
Figure 23. Doubler Load Regulation, Output Voltage vs. Output Current
1
OSC
6
V in
+
2
5
+
+
+
+
+
+
?V out
3
4
Capacitors = 10 m F
Figure 24. Negative Output Voltage Tripler
http://onsemi.com
8
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MAX1720EUT+ 制造商:Maxim Integrated Products 功能描述:CHG PUMP INV -1.25V TO -5.5V 25MA 6PIN SOT-23 - Rail/Tube
MAX1720EUT+T 功能描述:电荷泵 Switched-Cap Voltage Inverter w/Shutdown RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube
MAX1720EUTG 功能描述:电荷泵 Switched Cap Voltage Inverter w/Shutdown RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube
MAX1720EUT-T 功能描述:电荷泵 Switched-Cap Voltage Inverter w/Shutdown RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube
MAX1721EUT 制造商:Maxim Integrated Products 功能描述:VOLTAGE INVERTER - Rail/Tube