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L6740L Datasheet(PDF) 5 Page - STMicroelectronics

Part # L6740L
Description  Hybrid controller (41) for AMD SVID and PVID processors
PDF  44 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6740L Datasheet(HTML) 5 Page - STMicroelectronics

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L6740L
Typical application circuit and block diagram
5/44
Figure 2.
Typical 3+1 application circuit
HS1
LS1
VIN
L1
CHF
CBULK_IN
CDEC
ST L6740L (3+1) Reference Schematic
HS2
LS2
L2
CHF
CDEC
HS3
LS3
L3
CHF
CDEC
HSNB
LSNB
LNB
COUT
CHF_NB
CBULK_NB
CDEC_NB
PWM1
48
PWM2
47
PWM3
46
PWM4
45
NB_PWM
44
CS1+
13
CS1-
14
CS2+
15
CS2-
16
CS3+
17
CS3-
18
CS4+
19
CS4-
20
NB_ISEN
23
CMLCC
COUT_NB
CMLCC_NB
FBG
7
NB_VSEN
31
VSEN
6
NB_FBG
30
PVI / SVID AM2 CPU
SVID / PVID Interface
LIN
34
32
33
DROOP
5
FB
4
COMP
3
NB_OS
29
OS
8
OSC / FLT
27
OVP / V_FIX
10
VID1
36
VID3/SVC
39
VID4
25
VID5
26
PVI / SVID Bus
NB_ENDRV
42
ENDRV
43
2
1
VID2/SVD
40
CF
RF
RFB
CF_NB RF_NB
RFB_NB
ROSC
ROVP
RG
RG
RG
RG
RISEN
R
C
R
C
R
C
BOOT
UGATE
PHASE
LGATE
GND
PWM
VCC
EN*
PVCC*
BOOT
UGATE
PHASE
LGATE
GND
PWM
VCC
EN*
PVCC*
BOOT
UGATE
PHASE
LGATE
GND
PWM
VCC
EN*
PVCC*
BOOT
UGATE
PHASE
LGATE
GND
PWM
VCC
EN*
PVCC*
(*) PVCC Only applies to L6741; EN Only applies to L6743. See related DS for further details
(**) Pin not listed to be considered as Not Connected
35
38
37
41
VID0
EN
PWROK
PWRGOOD
PSI_L
12
CLTB
RLTB
LTB
11 LTB_GAIN
RLTBG
9
OC_AVG / LI
28
ROC_AVG
OC_PHASE
21
ROC_TH



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