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参数资料
| 型号： | LSP6501MSAC |
| 厂商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.3 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | MSOP-8 |
| 文件页数： | 6/10页 |
| 文件大小： | 347K |
| 代理商： | LSP6501MSAC |
LSP6501
1.6A, 1.3MHz, Boost DC-DC Converter
With Internal Switch
FUNCTION DESCRIPTION
Package
A304
VCC
SS
FB
GND
DF
L
SW
FREQ
COMP
RP
CP2
2.6 ~ 5.5VDC
COUT
CIN
CP1
R1
R2
VOUT
CSS
C3
R3
LSP6501
VIN
C.R NO
Q’TY
Value
Description
IC
1
-
LSP6501
MSOP-8
D
-
Schottky Diode 40V/2A
SMA
F
1
C
10uF / 10V
CAP C
SM
VER. 1.2
5/10
IN
1
ER SMD
D 1206
COUT
uF / 25V
SMD
2
10
CAP CER
SMD 1206
L
1
4.7uH
1.0A NR4018-100M
SMD
R1
1
*
NOTE 1
Chip Resistor / 1%
SMD 0603
R2
1
12K
Chip Resistor / 1%
SMD 0603
RP
1
10K
Chip Resistor / 1%
SMD 0603
(R3) *
NOTE 2
onal)
1
(Opti
Chip Resistor / 1%
SMD 0603
(C3) *
NOTE 2
nal)
1
(Optio
CAP CER X7R
SMD 0603
(CP1)
nal)
1
(Optio
CAP CER X7R
SMD 0603
CP2
1
10nF
CAP CER X7R
SMD 0603
CSS
1
1uF
CAP CER X7R
SMD 0603
*NOTE
FB(1+R1/R2)
*NOTE 2: R3 & C3 & CP1
d
proving th
ance. Beca
onents are
not ideal, some
es the system needs R
get better
e value is
cording to real load conditions.
1. Setting the O
FB pin
LSP6501. By using the resistor divider, R1 and R2, to
feedback signal, the output voltage is determined by:
1: VOUT=V
are use for im
e transient perform
use the comp
tim
3 & C3 & CP1 to
transient. Th
determined ac
utput Voltage
is used to set the output voltage VOUT of the
divide VOUT to the FB pin as
2
1
2
R
V
OUT
FB
+
=
+
=
+
=
2
1
2
1
24
.
1
R
V
R
V
FB
OUT
Where, the feedback pin voltage, VFB, is fixed at 1.24V.
2. Selection of Output Capacitor
the capacitance is high enough and the ESR (Effective
se (high capacitance & low ESR) are very important for the Boost
VOUT ripple and load transient specifications.
It is recommended to select output capacitors that
Series Resistance) is low enough. The
Converter to be able to meet the
Ceramic capacitors often have low ESR and can meet the Boost Converter requirements as long as the
capacitance values are enough. Note that the capacitance values of all kinds of ceramic capacitor drop when
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