INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
HVB
VMODE
LVB
Driver
VREF RSTO1B(Int)
VREF
CLR
LSWO
VO1
RSTO1B
RESET
Block 1
CRST1
RST1ADJ
INM1
RF1
VG
DTC1
VO1
RSTO2B
RESET
Block 2
RSTO2B(Int)
VG
RSTO2B(Int)
POWER
SWITCH2
VCC2
VO2IN
VO2
DW_2T
REF2
Step-UpDown
DC/DC
Converter
CH2
DW_2B
VI2
SW2
Step-UpDown
DC/DC
Converter
CH1
VMODE
RSTO1B(Int)
VG
VB
VB
VO1
LVB
VO1
V_STBY
VCC1
VO1
VI1
BANDGAP
REFERENCE
RSTO2B(Int) POWER
RSTO1B(Int)
VO1 VG SWITCH1
SW1
PGND1
CRST2
INM2
RF2
DTC2
VG
REF3
SREGC1
Series Pass
Regulator1
VG
SREGC2
SREGC3
WAKE1B
WAKE2B
WAKE3B
WAKE4B
SEQSEL
DATA
STRB
SCKIN
CLR
SLEEP
CLKIN
GND
VGSEL1
VGSEL2
WDT
REF4
V_STBY
VO1 VB
REF5
RSTO1B(Int)
CONTROL
PGND2
SREGI1
SREGO1
SREGI2
SREGO2
Series Pass
Regulator2
VG
Series Pass
Regulator3
CLKIN
VB
SREG2G
SREGI3
SREGO3
C1L
RSTO2B
(Int)
SEQSEL
Control
Logic
CPoff
VB VO1 VG
VG
Step-Up
DC/DC
Convertor
VG
EXT gate
On
Buffer
VREF
On
EXT_G_ON
SWG
PGND3
VG_select
VG_duty
REF2
REF1
REF4
REF5
REF3
REF DAC
Figure 2. MPC18730 Simplified Internal Block Diagram
18730
2
Analog Integrated Circuit Device Data
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
