Datasheet

-40 -20 0 20 40 60 80 100 120
16.5
16.6
16.7
16.8
16.9
17.0
17.1
17.2
17.3
17.4
17.5
CURRENT LIMIT I
CLR
(A)
AMBIENT TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100 120
120
124
128
132
136
140
144
148
152
156
160
MINIMUM ON-TIME (nS)
JUNCTION TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100 120
2
3
4
5
6
7
8
9
10
R
DSON
(m)
JUNCTION TEMPERATURE (°C)
LOW SIDE
HIGH SIDE
-40 -20 0 20 40 60 80 100 120
40
42
44
46
48
50
52
54
56
58
60
SHUTDOWN CURRENT I
SD
(A)
JUNCTION TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100 120
0.50
0.52
0.54
0.57
0.58
0.60
0.62
0.64
0.66
0.68
V
OVP
,V
UVP
(V)
JUNCTION TEMPERATURE (°C)
VUVP
VOVP
LM21212-1
www.ti.com SNVS671E –FEBRUARY 2011–REVISED MARCH 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: V
VIN
= 5V, V
OUT
= 1.2V, L= 0.56µH (1.8mΩ R
DCR
), C
SS
= 33nF, f
SW
= 1 MHz, T
A
= 25°C for
efficiency curves, loop gain plots and waveforms, and T
J
= 25°C for all others.
Enable Low Current vs. Temperature OVP/UVP Threshold vs. Temperature
Figure 12. Figure 13.
Minimum On-Time vs. Temperature FET Resistance vs. Temperature
Figure 14. Figure 15.
Peak Current Limit vs. Temperature
Figure 16.
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