User guide

MAX1846/MAX1847
High-Efficiency, Current-Mode,
Inverting PWM Controller
10 ______________________________________________________________________________________
MAX1846
MAX1847
STARTUP
CIRCUITRY
CONTROL
CIRCUITRY
VL
REGULATOR
OSCILLATOR
REFERENCE
SLOPE
COMP
UNDER-
VOLTAGE
LOCK OUT
SOFT-START
IN
MAX1847 ONLY
MAX1847 ONLY
POL
FREQ
COMP
FB
REF
SYNC
SHDN
ERROR
AMPLIFIER
CURRENT-
SENSE
AMPLIFIER
GND
ERROR
COMPARATOR
EXT DRIVER
EXT
VL
CS
PGND
PGND
G
M
Functional Diagram