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LM5145 датащи(PDF) 13 Page - Texas Instruments

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номер детали LM5145
подробное описание детали  LM25143 3.5-V to 42-V Dual Synchronous Buck DC/DC Controller With Ultra-Low IQ
PDF  69 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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LM5145 датащи(HTML) 13 Page - Texas Instruments

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8.7 Typical Characteristics
VIN = VEN1 = VEN2 = 12 V, TJ = 25°C, unless otherwise stated
Load Current (A)
0
1
2
3
4
5
6
7
60
65
70
75
80
85
90
95
100
VIN = 8V
VIN = 12V
VIN = 18V
See Figure 10-4.
VOUT = 5 V
FSW = 2.1 MHz
Figure 8-1. Efficiency Versus Load
Load Current (A)
0
1
2
3
4
5
6
7
60
65
70
75
80
85
90
95
100
VIN = 8V
VIN = 12V
VIN = 18V
See Figure 10-4.
VOUT = 3.3 V
FSW = 2.1 MHz
Figure 8-2. Efficiency Versus Load
80 ns/DIV
SW1 5V/DIV
SW2 5V/DIV
See Figure 10-4.
Figure 8-3. Switch Node Voltages
1ms/DIV
VIN 2V/DIV
VOUT2 1V/DIV
IOUT1 5A/DIV
VOUT1 1V/DIV
See Figure 10-4.
Figure 8-4. Start-Up Characteristic
100Ps/DIV
IOUT1 2A/DIV
VOUT1 100mV/DIV
See Figure 10-4.
Figure 8-5. Load Transient Response
Junction Temperature (qC)
-50
-25
0
25
50
75
100
125
150
0
1
2
3
4
5
6
D001
VEN1 = VEN2 = 0 V
Figure 8-6. Shutdown Current Versus Temperature
www.ti.com
LM25143
SNVSC10 – MARCH 2022
Copyright © 2022 Texas Instruments Incorporated
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Product Folder Links: LM25143



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