参数资料
| 型号： | MAX1720EUT |
| 厂商： | ON Semiconductor |
| 文件页数： | 14/18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
10 k
Q 2
R 2
C 1
R 1
1
OSC
6
+
?V out
V in
+
2
5
Q 1
+
C 2
C 3
3
4
C 1 = C 2 = 470 m F
C 3 = 220 m F
Q 1 = PZT751
Q 2 = PZT651
Figure 39. Line and Load Regulated Negative Output Voltage
with High Current Capability
This converter is a combination of Figures 37 and 32. It provides a line and load regulated output of ?2.36 V at up to 450 mA
with an input voltage of 5.0 V. The output will regulate at a level of ?V ref (R 2 /R 1 + 1). The performance characteristics are shown
below. Note, the dashed line is the open loop and the solid line is the closed loop performance.
?2.2
?1.0
?2.4
?2.6
?2.8
?1.2
?1.4
?1.6
?1.8
I out = 100 mA
R 1 = 10 k
R 2 = 9 k W
T A = 25 ° C
?3.0
V in = 5.0 V
R out = 0.9 W
R 1 = 10 k W
R 2 = 9.0 k W
T A = 25 ° C
?2.0
?2.2
?3.2
0
0.1
0.2
0.3
0.4
0.5
0.6
?2.4
3.0
3.5
4.0
4.5
5.0
5.5
6.0
I out , OUTPUT CURRENT (A)
Figure 40. Current Boosted Load Regulation,
Output Voltage vs. Output Current
50
V in , INPUT VOLTAGE (V)
Figure 41. Current Boosted Line Regulation,
Output Voltage vs. Input Voltage
Q 2
C 1
1
6
V out
V in
+
2
OSC
5
50
Q 1
+
+
C 2
C 3
3
4
Capacitors = 220 m F
Q 1 = PZT751
Q 2 = PZT651
Figure 42. Positive Output Voltage Doubler with High Current Capability
http://onsemi.com
14
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相关代理商/技术参数 |
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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 |
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