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LM5165 Datasheet(PDF) 29 Page - Texas Instruments

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Part # LM5165
Description  LM5165-Q1 Automotive 3-V to 65-V Input, 150-mA Synchronous Buck Converter With Ultra-Low IQ
PDF  52 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM5165 Datasheet(HTML) 29 Page - Texas Instruments

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8.2.2.3 Application Curves
Output Current (mA)
0.1
1
10
50
30
40
50
60
70
80
90
100
D103
VIN = 8V
VIN = 12V
VIN = 24V
VIN = 36V
VIN = 65V
VOUT = 3.3 V
Figure 8-15. Efficiency
V
OUT 100 mV/DIV
10 Ps/DIV
V
SW 5 V/DIV
VIN = 12 V
IOUT = 50 mA
Figure 8-16. SW Node and Output Ripple Voltage,
Full Load
V
OUT 1 V/DIV
V
IN 2 V/DIV
I
OUT 20 mA/DIV
1 ms/DIV
VIN stepped to 12 V
66-Ω Load
Figure 8-17. Start-Up, Full Load
V
OUT 1 V/DIV
V
EN 1 V/DIV
I
OUT 20 mA/DIV
1 ms/DIV
VIN = 12 V
66-Ω Load
Figure 8-18. Enable ON and OFF
V
OUT 100 mV/DIV
I
OUT 20 mA/DIV
10 Ps/DIV
VIN = 12 V
Figure 8-19. Load Transient, 0 mA to 50 mA, 1 A/µs
V
OUT 1 V/DIV
200 ms/DIV
V
IN 2 V/DIV
IOUT = 50 mA
Figure 8-20. Input Voltage Transient (Atuomotive
Cold Crank Profile)
8.2.3 Design 3: High Density 12-V, 75-mA PFM Converter
The schematic diagram of 12-V, 75-mA PFM converter is given in Figure 8-21.
www.ti.com
LM5165-Q1
SNVSAJ3C – MARCH 2016 – REVISED DECEMBER 2022
Copyright © 2022 Texas Instruments Incorporated
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Product Folder Links: LM5165-Q1



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