參數(shù)資料
型號(hào)： LTYB
廠商： Linear Technology Corporation
英文描述： 100mA REGULATED CHARGE-PUMP INVERTERS IN THINSOT
中文描述： 100mA的穩(wěn)壓電荷泵采用ThinSOT逆變器中
文件頁(yè)數(shù)： 9/12頁(yè)
文件大?。?/td> 188K
代理商： LTYB
LTC1983-3/LTC1983-5
9
sn1983 1983fs
problem in the low I
Q
mode, it is necessary to switch the
part in and out of shutdown at the minimum allowable
frequency (refer to Figure 3) for a given output load.
General Layout Considerations
Due to the high switching frequency and high transient
currents produced by the LTC1983, 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 Figures 4a and 4b). You will not get advertised
performance with careless layout.
Figure 3
OUTPUT CURRENT (
μ
A)
1
10
100
1000
M
1000
1983 F03b
1
10
100
SHDN ON PULSE WIDTH = 200
μ
s
C
OUT
= 10
μ
F
Figure 4a. Recommended Component
Placement for a Single Layer Board
Figure 4b. Recommended Component
Placement for a Double Layer Board
1 V
IN
2 V
OUT
3 C
+
SHDN 6
GND 5
C
–
4
C
OUT
C
FLY
V
IN
: 2.3V TO 5.5V
V
OUT
1983 F04a
C
IN
1 V
IN
2 V
OUT
3 C
+
SHDN 6
GND 5
C
–
4
C
IN
C
OUT
C
FLY
V
OUT
1983 F04b
BOTTOM LAYER
TOP LAYER
OPERATIOU
(Refer to Block Diagram)
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