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PM6675 Datasheet(PDF) 13 Page - STMicroelectronics

Part # PM6675
Description  Very fast load transient response using constant on-time control loop
PDF  47 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM6675 Datasheet(HTML) 13 Page - STMicroelectronics

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PM6675
Block diagram
13/47
5
Block diagram
Figure 3.
Functional and block diagram
LOUT
LIN
LPG
VCC
AVCC
SGND
VSEL
LEN
SWEN
CSNS
HGATE
LGATE
PHASE
BOOT
PGND
NOSKIP
VREF
VSNS
LFB
VOSC
COMP
CONTROL LOGIC
Zero Crossing
& Current
Limit
SPG
Vr -10
%
Vr +10
%
+
-
+
-
gm
+
_
Vr
+
_
VREF
Level
shifter
1.236V
Bandgap
Vr = 0.6V
SDS
LDS
LEN
LEN
LILIM
UVLO
SWEN
SWEN
Vr
Ton
Toff
1-shot
1-shot
1-shot
fix
adj
UVP/OVP
Thermal Shutdown
min
min
+
-
+
-
Vr +10
%
Vr -10
%
0.6V
+
_
Ton
Anti Cross
Conduction
LILIM
LGND
LDS
LDS
LOUT
LIN
LPG
VCC
AVCC
SGND
VSEL
LEN
SWEN
CSNS
HGATE
LGATE
PHASE
BOOT
PGND
NOSKIP
VREF
VSNS
LFB
VOSC
COMP
CONTROL LOGIC
Zero Crossing
& Current
Limit
SPG
Vr -10
%
Vr +10
%
+
-
+
-
gm
+
_
Vr
+
_
VREF
Level
shifter
1.236V
Bandgap
Vr = 0.6V
SDS
LDS
LEN
LEN
LILIM
UVLO
SWEN
SWEN
Vr
Ton
Toff
1-shot
1-shot
1-shot
fix
adj
UVP/OVP
Thermal Shutdown
min
min
+
-
+
-
Vr +10
%
Vr -10
%
0.6V
+
_
Ton
Anti Cross
Conduction
LOUT
LIN
LPG
VCC
AVCC
SGND
VSEL
LEN
SWEN
CSNS
HGATE
LGATE
PHASE
BOOT
PGND
NOSKIP
VREF
VSNS
LFB
VOSC
COMP
CONTROL LOGIC
Zero Crossing
& Current
Limit
SPG
Vr -10
%
Vr +10
%
+
-
+
-
gm
+
_
Vr
+
_
VREF
Level
shifter
1.236V
Bandgap
Vr = 0.6V
SDS
LDS
LEN
LEN
LILIM
UVLO
SWEN
SWEN
Vr
Ton
Toff
1-shot
1-shot
1-shot
fix
adj
UVP/OVP
Thermal Shutdown
min
min
+
-
+
-
Vr +10
%
Vr -10
%
0.6V
+
_
Ton
Anti Cross
Conduction
LILIM
LGND
LDS
LDS
Table 5. Legend
SWEN
Switching controller enable
LEN
LDO regulator enable
LDS
LDO output discharge enable
SDS
Switching output discharge enable
LILIM
LDO regulator current limit



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