Datasheet

EA
PWM
ILIM
40 PA
10 PA
SYNCHRONOUS
DRIVER LOGIC
OV UV
10 Ps
DELAY
0.71V
0.434V
SHUT DOWN
LOGIC
UVLO
SD
V
CC
SGND
FB EAO
BOOT
HG
LG
I
SEN
PWGD
SS/TRACK
PGND
90 PA
SSDONE
Soft-Start
Comparator
+ Logic
+
-
+
-
V
REF
=0.6V
REF
PWM LOGIC
PLL*
FREQ/SYNC*
PGND
CLOCK &
RAMP
Zero Detector
*Sync function for LM2745 Only
1V
PP
LM2745, LM2748
SNOSAL2E –APRIL 2005–REVISED APRIL 2013 www.ti.com
Block Diagram
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Product Folder Links: LM2745 LM2748