参数资料
型号: LX1677-CPWT
厂商: MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分类: 稳压器
英文描述: 1.5 A SWITCHING CONTROLLER, 1100 kHz SWITCHING FREQ-MAX, PDSO38
封装: PLASTIC, TSSOP-38
文件页数: 14/16页
文件大小: 353K
代理商: LX1677-CPWT
LX1677
PRELIMINARY DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 7
WWW
.Microse
m
i
.CO
M
AMD64 Processor VRM Controller
I N T E GR A T ED
PRODUCT S
Copyright
2000
Rev 0.4a, 2003-03-03
SIMPLIFIED BLOCK DIAGRAM
1
38
5
15
6
8
9
7
22
28
27
26
25
24
18
17
16
23
34
35
29
30
31
21
20
+
-
2
0.85
2.35
+
-
4
3
+
-
UV
OV
Band-
gap
UVLO
VCC
VIN
+
-
R
S
R
gm
37
36
IMAX
IMIN
10
GND
VCC
ROSC
V
IN
PWGD
VID_4
VID_3
VID_2
VID_1
VID_0
DACOUT
FB +
FB -
VCCL
VC1
HO1
LO1
VS1
PGN
HO2
VS2
LO2
VCCL
PGOOD
SR S
S
LP2
LP1
ENA
VC3
I-Max
VS3
I-Min
PGN3
EO1
EA1 -
DFOUT
EO2
EA2 -
50
A
VC2
+
-
+
-
Bandgap
180°
DACOUT
- 30mV
+
_
35mV
offset
DACOUT
DAC
AMP
FRQ
OSC
V
IN
180°
+
_
+
19
14
13
12
11
Diff Amp
Phase 1
Error Amp
Phase 2
Differential
Amp
Phase 2
Integrating
Amp
S
DACOUT
35mV
offset
100K
90K
POR
PGOOD
Q
I-MAX
I-MIN
ILIM
32
33
ILIM
ILIM3 ILIM1
PGN
VS3
Fault
_
EE
LL
EE
CC
TT
RR
IICC
AA
LL
SS
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