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LM21212-2 Datenblatt(PDF) 6 Page - Texas Instruments

Teilenummer LM21212-2
Bauteilbeschribung  12A High Efficiency Synchronous Buck Regulator with Adjustable Switching Frequency
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Hersteller  TI [Texas Instruments]
Direct Link  http://www.ti.com
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LM21212-2 Datenblatt(HTML) 6 Page - Texas Instruments

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-40 -20
0
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80 100 120
0.50
0.52
0.54
0.57
0.58
0.60
0.62
0.64
0.66
0.68
JUNCTION TEMPERATURE (°C)
VUVP
VOVP
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0
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80 100 120
40
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JUNCTION TEMPERATURE(°C)
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0
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1.28
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1.37
80
88
96
104
112
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128
136
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JUNCTION TEMPERATURE (°C)
V IHENR
V ENHYS
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0
20
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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
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285
300
JUNCTION TEMPERATURE (°C)
V UVLO
V UVLOHYS
-40 -20
0
20 40 60 80 100 120
0.90
0.93
0.96
0.99
1.02
1.05
1.08
1.11
1.14
1.17
1.20
0.100
0.108
0.116
0.124
0.132
0.140
0.148
0.156
0.164
0.172
0.180
JUNCTION TEMPERATURE (°C)
IAVIN
IPVIN
-40 -20
0
20
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80 100 120
0.598
0.599
0.600
0.601
0.602
JUNCTION TEMPERATURE (°C)
LM21212-2
SNVS715A – MARCH 2011 – REVISED MARCH 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: VVIN = 5V, VOUT = 1.2V, L= 0.56µH (1.8mΩ RDCR), CSS = 33nF, fSW = 500 kHz (RADJ= 95.3kΩ), TA
= 25°C for efficiency curves, loop gain plots and waveforms, and TJ = 25°C for all others.
Non-Switching IAVIN and IPVIN vs. Temperature
VFB vs. Temperature
Figure 8.
Figure 9.
Enable Threshold and Hysteresis vs. Temperature
UVLO Threshold and Hysteresis vs. Temperature
Figure 10.
Figure 11.
Enable Low Current vs. Temperature
OVP/UVP Threshold vs. Temperature
Figure 12.
Figure 13.
6
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