参数资料
型号: LX1684CD-TR
厂商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分类: 稳压器
英文描述: 1 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO14
封装: PLASTIC, SOIC-14
文件页数: 12/12页
文件大小: 248K
代理商: LX1684CD-TR
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
Copyright
2000
Rev. 1.0c, 2005-03-08
WWW
.Microse
m
i
.CO
M
LX1684
Voltage-Mode PWM Controller
PRODUCTION DATA SHEET
TM
TY PI CAL APPLI CATI O N
FB
NC
SS
CSP
GND
PGND
BDR
TDR
NC
VC1
NC
CS
NC
VCC
Css
0.1F
R2
100 Ohm
R1
300 Ohm
C5
1F
5V
RSET
2K
L1 is powder
iron Toroid
VOUT
Q1
4x
1500
F
C6
1F
2x
820F,
16V
10.8V - 13.2V
MBR2545
L1
10H
Figure 3
12V to 5V with P-MOSFET. No Charge Pump is Needed.
FB
NC
SS
CSP
GND
PGND
BDR
TDR
NC
VC1
NC
CS
NC
VCC
Css
0.1F
R2
50K Ohm
R1
150 Ohm
C5
1F
5V
5%
RSET
3.9K
L1
5H
VOUT
Q2
SUB45N05-
20L
2x
270F
2V
2x
150F,
6.3V
Q1
SUB45N
05-20L
3.3V
10%
C1
0.1F
C3 Panasonic EEF-UE0D271R 270uF 3A 15mOhm ESR
C4 Panasonic EEF-UE0J151R 150uF 3A 18mOhm ESR
1.25V
10A
5817SMT
C3
C4
L1 is a powdered
iron toroid
1
2
3
4
5
6
7
14
13
12
11
10
9
8
D1
Figure 4
3.3V to 1.25V with Charge Pump.
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
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