參數(shù)資料
型號: PM6641TR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, QCC48
封裝: 7 X 7 MM, 1 MM HEIGHT, LEAD FREE, VQFP-48
文件頁數(shù): 10/47頁
文件大小: 2254K
代理商: PM6641TR
Block diagram
PM6641
18/47
Doc ID 13510 Rev 3
6
Block diagram
Figure 27.
Functional and block diagram
Table 7.
Legend
TD
Tracking discharge enable
NTD
Non-tracking discharge enable
EN
VTTREF buffer enable
HiZ
LDO high impedance mode enable
COMP_1S05
SGND_1S05
VFB_1S05
VOUT_1S8
SGND_1S5
R
EN
NTD
VREF = 0.8V
NTD
OSC
? 1
? 3
? 2
ASM
ANTI X
COND
ANTI X
COND
ANTI X
COND
ZERO
CROSS &
VALLEY
C.L.
ZERO
CROSS &
VALLEY
C.L.
ZERO
CROSS &
VALLEY
C.L.
SS CONTROL
SS
CONTROL
SS
CONTROL
+
_
+
_
0.9V
+
_
+
_
+
_
gm
+
_
gm
+
_
gm
OVP
UVP
OVP
UVP
OVP
UVP
+
_
PULSE
SKIP
PULSE
SKIP
PULSE
SKIP
UVLO
THERMAL PROTECTION
1.237V
+
_
+
_
+
_
+
_
+
_
+
_
VREF
VIMIN
VIMAX
VIMIN
VIMAX
VIMIN
VREF+10%
VREF-10%
VREF+10%
VREF-10%
HiZ
PG_1S05
SS_1S05
SW_1S05
VIN_1S05
SET_SWF
VTTGND
VTT
LDOIN
VTTFB
VTTREF
PG_1S8
VIN_1S8
VSW_1S8
SGND_1S8
COMP_1S8
VFB_1S8
SS_1S8
VIN_1S5
VSW_1S5
COMP_1S5
VFB_1S5
SS_1S5
PG_1S5
CSNS
DSCG
AVCC
VCC
EN HiZ
TD
NTD
CONTROL LOGIC
SET_PH1
0.9V
PEAK
CURR.
LIMIT
PEAK
CURR.
LIMIT
PEAK
CURR.
LIMIT
COMP_1S05
SGND_1S05
VFB_1S05
VOUT_1S8
SGND_1S5
R
EN
NTD
VREF = 0.8V
NTD
OSC
? 1
? 3
? 2
ASM
ANTI X
COND
ANTI X
COND
ANTI X
COND
ZERO
CROSS &
VALLEY
C.L.
ZERO
CROSS &
VALLEY
C.L.
ZERO
CROSS &
VALLEY
C.L.
SS CONTROL
SS
CONTROL
SS
CONTROL
+
_
+
_
0.9V
+
_
+
_
+
_
gm
+
_
gm
_
gm
OVP
UVP
OVP
UVP
OVP
UVP
+
_
PULSE
SKIP
PULSE
SKIP
PULSE
SKIP
UVLO
THERMAL PROTECTION
1.237V
+
_
+
_
+
_
+
_
+
_
+
_
VREF
VIMIN
VIMAX
VIMIN
VIMAX
VIMIN
VREF+10%
VREF-10%
VREF+10%
VREF-10%
HiZ
PG_1S05
SS_1S05
SW_1S05
VIN_1S05
SET_SWF
VTTGND
VTT
LDOIN
VTTFB
VTTREF
PG_1S8
VIN_1S8
VSW_1S8
SGND_1S8
COMP_1S8
VFB_1S8
SS_1S8
VIN_1S5
VSW_1S5
COMP_1S5
VFB_1S5
SS_1S5
PG_1S5
CSNS
DSCG
AVCC
VCC
EN HiZ
TD
NTD
CONTROL LOGIC
SET_PH1
0.9V
PEAK
CURR.
LIMIT
PEAK
CURR.
LIMIT
PEAK
CURR.
LIMIT
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