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LM5145 Datasheet(PDF) 12 Page - Texas Instruments

Part # LM5145
Description  LM5146 100-V Synchronous Buck DC/DC Controller With Wide Duty Cycle Range
PDF  66 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LM5145 Datasheet(HTML) 12 Page - Texas Instruments

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Input Voltage (V)
0
20
40
60
80
100
1.4
1.6
1.8
2
2.2
40°C
25°C
150°C
VSW = 0 V
VEN/UVLO = VVIN
VSS/TRK = 0 V
Figure 7-7. IQ-OPERATING (Nonswitching) vs Input
Voltage
Input Voltage (V)
0
20
40
60
80
100
2.5
2.75
3
3.25
3.5
3.75
4
40°C
25°C
150°C
VSW = 0 V
HO, LO Open
Figure 7-8. IQ-OPERATING (Switching) vs Input
Voltage
Input Voltage (V)
0
20
40
60
80
100
0
0.1
0.2
0.3
0.4
0.5
0.6
VCC = 8V
VSW = 0 V
VVCC = VBST = VILIM
VFB = 0 V
Figure 7-9. VIN Quiescent Current with External
VCC Applied
Junction Temperature (°C)
-50
-25
0
25
50
75
100
125
150
0
50
100
150
200
250
300
350
RDS-ON Mode
RSENSE Mode
Figure 7-10. ILIM Current Source vs Junction
Temperature
Junction Temperature (°C)
-50
-25
0
25
50
75
100
125
150
0
5
10
15
20
25
HO to LO
LO to HO
VSW = 0 V
Figure 7-11. Deadtime vs Junction Temperature
Junction Temperature (°C)
-50
-25
0
25
50
75
100
125
150
4.2
4.4
4.6
4.8
5
5.2
Rising
Falling
Figure 7-12. VCC UVLO Thresholds vs Junction
Temperature
LM5146
SNVSBV0A – JUNE 2021 – REVISED JUNE 2021
www.ti.com
12
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Copyright © 2021 Texas Instruments Incorporated
Product Folder Links: LM5146



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