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PM6670STR Datasheet(PDF) 18 Page - STMicroelectronics

No. de pieza PM6670STR
Descripción Electrónicos  Complete DDR2/3 memory power supply controller
PDF  53 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM6670STR Datasheet(HTML) 18 Page - STMicroelectronics

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Block diagram
PM6670S
18/53
6
Block diagram
Figure 27.
Functional and block diagram
VTTGND
VTT
LDOIN
VTTREF
VCC
AVCC
SGND
MODE
DDRSEL
S3
S5
CSNS
HGATE
LGATE
PHASE
BOOT
PGND
DSCG
VREF
VSNS
VTTSNS
VOSC
COMP
CONTROL LOGIC
Zero Crossing &
Current Limit
PG
Vr -10
%
Vr +10
%
+
-
+
-
gm
+
-
Vr
+
_
VREF
R
R
Level
shifter
1.236V
Bandgap
Vr = 0.9V
NTD
NTD
NTD
NTD
HIZ
HIZ
BEN
BEN
TD
TD
Ton
UVLO
SWEN
SWEN
Vr
Anti Cross
Conduction
Ton
min
Toff
min
1-shot
1-shot
1-shot
fix
adj
DDR3
UVP/OVP
Thermal Shutdown
VTTGND
VTT
LDOIN
VTTREF
VCC
AVCC
SGND
MODE
DDRSEL
S3
S5
CSNS
HGATE
LGATE
PHASE
BOOT
PGND
DSCG
VREF
VSNS
VTTSNS
VOSC
COMP
CONTROL LOGIC
Zero Crossing &
Current Limit
PG
Vr -10
%
Vr +10
%
+
-
+
-
gm
+
-
Vr
+
_
VREF
R
R
Level
shifter
1.236V
Bandgap
Vr = 0.9V
NTD
NTD
NTD
NTD
HIZ
HIZ
BEN
BEN
TD
TD
Ton
UVLO
SWEN
SWEN
Vr
Anti Cross
Conduction
Ton
min
Toff
min
1-shot
1-shot
1-shot
fix
adj
DDR3
UVP/OVP
Thermal Shutdown
Table 7.
Legend
SWEN
Switching controller enable
TD
Tracking discharge enable
NTD
Non-tracking discharge enable
BEN
VTTREF buffer enable
HIZ
LDO high impedance mode enable



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