Datasheet

Data Sheet ADP2119/ADP2120
Rev. A | Page 15 of 24
FUNCTIONAL BLOCK DIAGRAM
NMOS
CURRENT
SENSE
AMPLIFIER
ZERO-CROSSING
COMPARATOR
PGND
PVIN
PMOS CURRENT
SENSE AMPLIFIER
0.6V
ERROR
AMPLIFIER
0.54V
FB
SLOPE
COMPENSATION
OSCILLATOR
SKIP MODE
THRESHOLD
SKIP
COMPARATOR
SYNC/MODE
PWM AND
PROTECTION
LOGIC
CONTROL
CLK
SW
EN
UVLO
VIN
PFET
NFET
GND
TRK
Z
COMP
0.66V
PGOOD
SOFT
START
Gm
ADP2119/
ADP2120
08716-049
Figure 49. Functional Block Diagram