参数资料
型号: MAX864EEE+T
厂商: Maxim Integrated Products
文件页数: 9/12页
文件大小: 0K
描述: IC REG SWTCHD CAP DBL INV 16QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
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: 2
输出电压: ±3.5 V ~ ±12 V
输入电压: 1.75 V ~ 6 V
频率 - 开关: 185kHz
电流 - 输出: 35mA
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: 16-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 16-QSOP
Dual-Output Charge Pump with Shutdown
V IN
3.3 μ F
3.3 μ F
1
2
C1-
C2+ MAX864
V+
C1+
8
7
1
2
C1-
C2+ MAX864
V+
C1+
8
7
3.3 μ F
V+ OUT
3.3 μ F
3
4
C2-
V-
IN
GND
6
5
3.3 μ F
3
4
C2-
V-
IN
GND
6
5
V IN
GND
3.3 μ F
V- OUT
Figure 4. Paralleling Two MAX864s
Heavy Output Current Loads
When under heavy loads, where V+ is sourcing current
into V- (i.e., load current flows from V+ to V-, rather than
from supply to ground), do not allow the V- supply to
pull above ground. In applications where large currents
flow from V+ to V-, use a Schottky diode (1N5817)
between GND and V-, with the anode connected to
GND (Figure 5).
Layout and Grounding
GND
11
Good layout is important, primarily for good noise per-
formance. To ensure good layout, mount all compo-
MAX864
nents as close together as possible, keep traces short
to minimize parasitic inductance and capacitance, and
use a ground plane. Connecting all N.C. pins to a
ground plane improves thermal dissipation.
Figure 5. High V- Load Circuit
V-
5
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9
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