参数资料
| 型号： | MAX1720EUT |
| 厂商： | ON Semiconductor |
| 文件页数： | 11/18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： | 无 |
| 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
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
T A = 25 ° C
?2.0
?3.0
A
B
Curve
A
B
V in (V)
3.3 V
5.0 V
V z (V)
4.5
6.5
V out (V)
?2.8
?3.8
?4.0
?5.0
0
10
20
30
40
50
60
I out , OUTPUT CURRENT (mA)
Figure 31. Load Regulation, Output Voltage vs.
Output Current
?V out
1
6
R 1
+
OSC
V in
+
2
5
+
R 2
3
4
10 k
Capacitors = 10 m F
Figure 32. Line and Load Regulated Negative Output Voltage
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| MAX1725EUK+T | IC REG LDO ADJ 20MA SOT23-5 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
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