參數資料
型號: EL7583IRZ-T13
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: 3-Channel DC-DC Converter
中文描述: 0.5 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO20
封裝: LEAD FREE, MO-153, TSSOP-20
文件頁數: 12/15頁
文件大?。?/td> 778K
代理商: EL7583IRZ-T13
12
FN7335.3
February 4, 2005
Two-Stage Positive Charge Pump Circuit
-
+
+
-
V
SSP
DRNP
FBP
1.265V
V
DDP
C
CPP
C
OUT1
V
BOOST
(5V-17V)
V
LX
C
OUT1
R
12
R
11
C
CPP
V
ON
R
ONP
R
ONN
The maximum V
ON
output voltage for N+1 stage charge pump is:
V
ON
max
(
)
2
V
DDP
- I
OUT
2
R
ONN
(
R
ONP
)
- 2
V
DIODE
- I
OUT
0.5
F
S
I
OUT
C
CPP
×
×
×
-------------------------------------------
×
×
+
×
×
×
- I
OUT
S
OUT1
-----------------------------------------------
×
N
V
LX
max
(
)
- N
2
V
DIODE
I
OUT
S
CPP
-------------------------------------------
×
+
×
×
×
0.5
F
S
C
OUT1
×
+
+
R
11
and R
12
set the V
ON
output voltage:
V
ON
V
FBP
R
--------------------------
R
+
11
×
=
where V
FBP
is 1.310V.
Negative Charge Pump Design Considerations
The criteria for the negative charge pump is similar to the
positive charge pump. For a single stage charge pump, the
maximum V
OFF
output voltage is:
V
OFF
max
(
)
I
OUT
2
R
ONN
(
R
ONP
)
2
V
DIODE
- I
OUT
S
CPN
--------------------------------------------
×
×
+
+
×
×
- I
OUT
S
OUT2
-----------------------------------------------
×
- V
DDN
Similar to positive charge pump, if additional stage is
required, the LX switching signal is recommended to drive
the additional charge pump diodes. The figure on the next
page shows a two stage negative charge pump circuit.
EL7583
相關PDF資料
PDF描述
EL7583IRZ-T7 3-Channel DC-DC Converter
EL7583IREZ 3-Channel DC/DC Converter
EL7583IREZ-T13 3-Channel DC/DC Converter
EL7583IREZ-T7 3-Channel DC/DC Converter
EL7584IR-T13 4-Channel DC:DC Converter
相關代理商/技術參數
參數描述
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