Datasheet

LOGIC
VCC
SS
OSCILLATOR
CLK
HS
PWM
REF
FEED-FORWARD RAMP
CS
RAMP
HO
DRIVER
HB
LO
COMP
UVLO
RES
DRIVER
REF
SHUTDOWN
Timer
SR1
SR2
DLY
OVP
LOGIC
S
R
Q
D
Q
T
Q
Q
AGND
PGND
SLOPE
PROPORTIONAL
TO VIN
RESTART DELAY
SHUTDOWN
SOFT-STOP
SOFT-START
55 PA
+5V
CLK + LEB
0.25V
1.2 PA
1 mA
55 PA
CLK
+5V
2.5V
12 PA
22 PA
NON-CURRENT
LIMIT CYCLE
CURRENT
LIMIT
CYCLE
VCC
VCC
VCC
2.5V
MAX V*S
CLAMP
1V
VIN
5V
Reference
VCC/REF
UVLO
7.6V SERIES
REGULATOR
THERMAL
LIMIT
(165ºC)
5k
SS
SS Buffer
(Sink Only)
1:1
RT/SYNC
UVLO-STANDBY
OVP-STANDBY
1.25V
+5V
23 PA
23 PA
1.25V
0.4V
OVP-Standby
Shutdown
UVLO-
Standby
Soft-Start
Hiccup
SS
LM5035
www.ti.com SNVS428G –JANUARY 2006–REVISED MARCH 2013
Block Diagram
Figure 11.
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