Datasheet
Table Of Contents

-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
-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
2.60
2.62
2.64
2.66
2.68
2.70
2.72
2.74
2.76
2.78
2.80
150
165
180
195
210
225
240
255
270
285
300
V
UVLO
(V)
JUNCTION TEMPERATURE (°C)
V
UVLOHYS
(mV)
V UVLO
V UVLOHYS
-40 -20 0 20 40 60 80 100 120
40
42
44
46
48
50
52
54
56
58
60
ENABLE LOW CURRENT (A)
JUNCTION TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100 120
0.598
0.599
0.600
0.601
0.602
V
FB
(V)
JUNCTION TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100 120
1.28
1.29
1.30
1.31
1.32
1.33
1.34
1.35
1.36
1.37
80
88
96
104
112
120
128
136
144
152
160
V
IHENR
(V)
JUNCTION TEMPERATURE (°C)
V
ENHYS
(V)
V IHENR
V ENHYS
LM21215
www.ti.com
SNVS625E –FEBRUARY 2011–REVISED MARCH 2013
Typical Performance Characteristics (continued)
Unless otherwise specified: V
IN
= 5V, V
OUT
= 1.2V, L= 0.56µH (1.8mΩ R
DCR
), C
SS
= 33nF, T
A
= 25°C for efficiency curves,
loop gain plots and waveforms, and T
J
= 25°C for all others.
V
FB
vs. Temperature Enable Threshold and Hysteresis vs. Temperature
Figure 8. Figure 9.
UVLO Threshold and Hysteresis vs. Temperature Enable Low Current vs. Temperature
Figure 10. Figure 11.
OVP/UVP Threshold vs. Temperature Minimum On-Time vs. Temperature
Figure 12. Figure 13.
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