参数资料
型号: MAX829EUKG
厂商: ON Semiconductor
文件页数: 13/17页
文件大小: 0K
描述: IC REG SWITCHD CAP DBL INV 5TSOP
产品变化通告: Product Obsolescence 01/Jul/2009
标准包装: 1
类型: 切换式电容器(充电泵),倍增器,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: 19kHz ~ 54kHz
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: 6-TSOP(0.059",1.50mm 宽)5 引线
供应商设备封装: 5-TSOP
MAX828, MAX829
MAX828
MAX829
Curve
A
B
C
D
V in (V)
3.0
3.0
5.0
5.0
Diodes
1N4148
MBRA120E
1N4148
MBRA120E
R out ( W )
110
96.5
84.5
78.2
R out ( W )
111
96.7
87.3
77.1
?V out
+
1
OSC
5
1
OSC
5
V in
+
2
2
3
+
4
3
+
4
MAX828 Capacitors = 10 m F
MAX829 Capacitors = 3.3 m F
Figure 42. Paralleling Devices for Increased Negative Output Current
An increase in converter output current capability with a reduction in output resistance can be obtained by paralleling two
or more devices. The output current capability is approximately equal to the number of devices paralleled. A single shared
output capacitor is sufficient for proper operation but each device does require it’s own pump capacitor. Note that the output
ripple frequency will be complex since the oscillators are not synchronized. The output resistance is approximately equal to
the output resistance of one device divided by the total number of devices paralleled. The performance characteristics for a
converter consisting of two paralleled devices is shown below.
?1.0
?2.0
?3.0
?4.0
?5.0
T A = 25 ° C
B
A
?1.0
?2.0
?3.0
?4.0
?5.0
T A = 25 ° C
D
C
0
20
40
60
80
100
0
20
40
60
80
100
I out , OUTPUT CURRENT (mA)
Figure 43. Parallel Load Regulation, Output
Voltage vs. Output Current MAX828
http://onsemi.com
13
I out , OUTPUT CURRENT (mA)
Figure 44. Parallel Load Regulation, Output
Voltage vs. Output Current MAX829
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