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参数资料
| 型号： | MAX680CPA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/8页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ DL 8DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 升压（升压），切换电容（充电泵），反相 |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | ±4 V ~ ±12 V |
| 输入电压： | 2 V ~ 6 V |
| 频率 - 开关： | 8kHz |
| 电流 - 输出： | 10mA |
| 同步整流器： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 包装： | 管件 |
| 供应商设备封装： | 8-PDIP |
+5V to ±10V Voltage Converters
Paralleling Devices
Paralleling multiple MAX680/MAX681s reduces the out-
put resistance of both the positive and negative con-
verters. The effective output resistance is the output
resistance of a single device divided by the number of
devices. As Figure 4 shows, each MAX680 requires
separate pump capacitors C1 and C2, but all can
share a single set of reservoir capacitors.
±5V Regulated Supplies from
a Single 3V Battery
Figure 5 shows a complete ±5V power supply using one
3V battery. The MAX680/MAX681 provide +6V at V+,
which is regulated to +5V by the MAX666, and -6V,
which is regulated to -5V by the MAX664. The MAX666
and MAX664 are pretrimmed at wafer sort and require
no external setting resistors, minimizing part count. The
combined quiescent current of the MAX680/MAX681,
MAX663, and MAX664 is less than 500μA, while the out-
put current capability is 5mA. The MAX680/MAX681
input can vary from 3V to 6V without affecting regulation
appreciably. With higher input voltage, more current can
be drawn from the MAX680/MAX681 outputs. With 5V at
V CC , 10mA can be drawn from both regulated outputs
simultaneously. Assuming 150 ? source resistance for
both converters, with (I L+ + I L- ) = 20mA, the positive
charge pump will droop 3V, providing +7V for the nega-
tive charge pump. The negative charge pump will droop
another 1.5V due to its 10mA load, leaving -5.5V at V-
sufficient to maintain regulation for the MAX664 at this
current.
LOW-BATTERY
WARNING AT 3.5V
LBO
LBI
SENSE
100 μ F
2M ?
MAX666
6V TO 3V
100 μ F
V CC
C1+ MAX680
V+
1.2M ?
+12V TO +6V
0.1 μ F
VIN
GND
VOUT
SDN VSET
10 μ F
+5V
C1-
100 μ F
C2+
V-
GND
C2-
GND
0.1 μ F
GND
SDN V SET
10 μ F
100 μ F
-12V TO -6V
V IN
MAX664
VOUT1
Figure 5. Regulated +5V and -5V from a Single Battery
VOUT2
SENSE
-5V
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX680CPA+ | 功能描述:电荷泵 5V to +/-10V Voltage Converter 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 |
| MAX680CSA | 功能描述:电荷泵 5V to +/-10V Voltage Converter 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 |
| MAX680CSA | 制造商:Maxim Integrated Products 功能描述:IC DUAL VOLT CONVERTER SOIC8 680 |
| MAX680CSA+ | 功能描述:电荷泵 5V to +/-10V Voltage Converter 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 |
| MAX680CSA+T | 功能描述:电荷泵 5V to +/-10V Voltage Converter 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 |
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