LX1671(2004) 데이터 시트보기 (PDF) - Microsemi Corporation
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LX1671 Datasheet PDF : 21 Pages
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INTEGRATED PRODUCTS
LX1671
Multiple Output LoadSHARE™ PWM
PRODUCTION DATA SHEET
BLOCK DIAGRAM
VSX
EOX
FBX
CSX
VTRIP
CS Comp
-
IRESET
+
ISET
RSET
PWM
RQ
SQ
Error Comp
+
-
-
+ Amplifier/
Compensation
VREF
20k
Ramp
Oscillator
UVLO UVLO
S
F FAULT S
R
S
SS1
SS2
SS3
TEMP
Hiccup
ISET
+12V
VCX
HOX
LOX
VIN(5V)
R2
CIN
R1
L1
ESR
OUT 1
COUT
PGX
+5V
VCCL
16V 16V
+5V
VCC
5.5V
SS/ENABLE
CSS
Figure 1 – Typical Block Diagram of Phase 1 and 3
+V
LDGD
VREF
+12V
VC1
VOUT4
-
LDFB
+5V
LDDIS
Figure 2 – LDO Controller Block Diagram
Copyright © 2000
Rev. 1.0a, 2004-06-14
Microsemi
Integrated Products, Power Management
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
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