INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
STBY
SD
PG
Thermal
Monitoring
Internal
Voltage
Regulator
VIN
M1
I sense
System
Reset
Current
Monitoring
I limit
Discharge
System
Control
V DDI
V IN
V BOOT
M2
BOOT
FREQ
Prog.
Frequency
Oscillator
Buck
Control
Logic
F SW
Gate
Driver
I sense
M3
PVIN
SW
PGND
M4
V D DI
VDDI
PWM
COMP
Bandgap
Regulator
V BG
Ramp
Generator
Comparitor
COMP
VREFIN
R REF1
R REF2
Error
Amplifier
INV
M6
GND
Discharge
Buffer
VREFOUT
Discharge
M5
VOUT
Figure 2. 34712 Simplified Internal Block Diagram
34712
Analog Integrated Circuit Device Data ?
2
Freescale Semiconductor
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