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TPS54340 Datasheet(PDF) 7 Page - Texas Instruments

Part # TPS54340
Description  TPS54340 42 V Input, 3.5 A, Step Down DC-DC Converter with Eco-mode?
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS54340 Datasheet(HTML) 7 Page - Texas Instruments

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±50
±25
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T
J - Junction Temperature (ƒC)
C033
1.15
1.16
1.17
1.18
1.19
1.2
1.21
1.22
1.23
1.24
1.25
1.26
1.27
1.28
1.29
1.3
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±25
0
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T
J - Junction Temperature (ƒC)
C034
200
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±25
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T
J - Junction Temperature (ƒC)
C032
0
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RT/CLK − Resistance (k
Ω)
G007
450
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±25
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T
J - Junction Temperature (ƒC)
C029
0
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RT/CLK - Resistance (k
)
C030
TPS54340
www.ti.com
SLVSBK0B – OCTOBER 2012 – REVISED MARCH 2014
Typical Characteristics (continued)
VIN = 12 V
RT = 200 kΩ
ƒsw (kHz) = 92417 x RT (kΩ)
-0.991
RT (kΩ) = 101756 x ƒsw (kHz)
-1.008
Figure 6. Switching Frequency vs Junction Temperature
Figure 7. Switching Frequency vs RT/CLK Resistance
Low Frequency Range
VIN = 12V
VIN = 12 V
Figure 8. Switching Frequency vs RT/CLK Resistance
Figure 9. EA Transconductance vs Junction Temperature
High Frequency Range
VIN = 12 V
VIN = 12 V
Figure 10. EA Transconductance During Soft-Start vs
Figure 11. EN Terminal Voltage vs Junction Temperature
Junction Temperature
Copyright © 2012–2014, Texas Instruments Incorporated
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