参数资料
型号: LTC1516IS8#PBF
厂商: Linear Technology
文件页数: 7/8页
文件大小: 0K
描述: IC REG SWITCHED CAP DBL 5V 8SOIC
标准包装: 100
类型: 切换式电容器(充电泵),倍增器
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 2 V ~ 5 V
频率 - 开关: 600kHz
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: 8-SOIC(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 8-SOIC
LTC1516
APPLICATIO N S I N FOR M ATIO N
Paralleling Devices
Two or more LTC1516’s may be connected in parallel to
provide higher output currents. The V IN , V OUT , GND and
SHDN pins may be tied together, but the C1 and C2 pins
must be kept separate (see Figure 5). Separate C IN and
C OUT capacitors may be required to reduce output noise
and ripple if the paralleled devices cannot be kept close
together. Otherwise, single C IN and C OUT capacitors may
be used with each being 2 × (or 3 × if three parts are
paralleled, etc.) in value.
0.22 μ F
General Layout Considerations
Due to the high switching frequency and high transient
currents produced by the LTC1516, careful board layout is
a must. A clean board layout using a ground plane and
short connections to all capacitors will improve perfor-
mance and ensure proper regulation under all conditions
(refer to Figure 6).
C1
C IN
1
8
1
C1 +
C1 –
8
V IN
2
LTC1516
7
SHDN
2
3
V IN
V OUT
SHDN
LTC1516
GND
7
6
V OUT
C OUT
+
3
4
6
5
GND
4
C2 +
C2 –
5
C2
0.22 μ F
1516 ? F06
0.22 μ F
Figure 6. Suggested Component Placement for LTC1516
1
C1 +
C1 –
8
V IN = 2V
TO 5V
+
22 μ F
+
2
3
22 μ F 4
V IN
V OUT
C2 +
SHDN
LTC1516
GND
C2 –
7
6
5
ON/OFF
0.22 μ F
V OUT = 5V ± 4%
I OUT = 0mA TO 40mA, V IN ≥ 2V
I OUT = 0mA TO 100mA, V IN ≥ 3V
1516 ? F05
Figure 5. Paralleling Devices
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
7
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