Datasheet

SS
RT
FB
VIN
SW
VIN
BST
L1
C
BST
D1
SD
CS
LEVEL
SHIFT
ON TIMER
FINISH
START
LOGIC
Gate Drive
UVLO
5V REGULATOR
Input
CL
C
L
2.5V
REGULATION
COMPARATOR
LM25011(A)
10
PA
CURRENT
LIMIT COMPARATOR
FINISH
START
OFF TIMER
THERMAL
SHUTDOWN
FCIC
CONTROL
PGD
2.375V
0.8V
R
PGD
CSG
Power
Good
125 mV
UVLO
SGND
RS
+
-
CURRENT LIMIT
THRESHOLD
+
-
6V to 42V
C
BYP
C
IN
R
T
C
SS
C
OUT
V
OUT
R
FB2
R
FB2
+
-
+
-
Pre -
Chg
-40 -20 0 20 40 60 80 100 120
50
70
90
110
130
150
170
190
MINIMUM OFF-TIME (ns)
JUNCTION TEMPERATURE (°C)
LM25011A
LM25011
LM25011, LM25011-Q1
SNVS617G APRIL 2009REVISED FEBRUARY 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
On-Time vs. Temperature Minimum Off-Time vs. Temperature
Figure 14. Figure 15.
BLOCK DIAGRAM
Figure 16. Block Diagram
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