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參數(shù)資料
| 型號： | LX1673-09CPWTR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 1035 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 259K |
| 代理商： | LX1673-09CPWTR |
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
Copyright
2000
Rev 0.4a, 5/25/2004
WWW
.Microse
m
i
.CO
M
LX1673
High Frequency PWM Regulator
PRELIMINARY DATA SHEET
TM
BLOCK DIAGRAM
CS Comp
+
-
Amplifier/
Compensation
+
-
Comp
+
-
I
RESET
R
S
Q
V
TRIP
20k
V
REF
Hiccup
Ramp
Oscillator
UVLO
L1
ESR
C
OUT
C
IN
+5V
V out 1
R
SET
VCC
BDRV
TDRV
VC1
CS
EA-
SS
I
SET
PWM
I
SET
+5V
EAO
VS
VCCL
PGND
UVLO
EA+
FAULT
TEMP
F
R
S
CSS
5.5V
16V
SS1
DIS
Vin (5V)
LDVCC
PWGD
Figure 1 – Block Diagram of PWM Phase
+
-
+5V
+V
V
REF
+12V
LDGD
LDFB
LDDIS
LDVCC
VOUT 2
16V
Figure 2 – LDO Controller Block Diagram
BB
LL
OO
CC
KK
DD
IIAA
GG
RR
AA
MM
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