LM5145 datasheet(39/55 Pages) TI

부품명	LM5145

상세설명	LM5146 100-V Synchronous Buck DC/DC Controller With Wide Duty Cycle Range

PDF	55 Pages

Scroll/Zoom	100%

제조업체	TI [Texas Instruments]

홈페이지	http://www.ti.com

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39 / 55 page

9.2.1.5 Application Curves

Output Current (A)

100

VIN = 12V

VIN = 24V

VIN = 36V

VIN = 48V

VIN = 60V

VIN = 75V

Figure 9-6. Efficiency and Power Loss vs IOUT and

VIN

1 Ps/DIV

SW 10V/DIV

SYNCOUT 1V/DIV

VIN = 48 V

IOUT = 6 A

Figure 9-7. SYNCOUT and SW Node Voltages

VIN 10V/DIV

PGOOD 2V/DIV

1 ms/DIV

IOUT 2A/DIV

VOUT 1V/DIV

VIN step to 48 V

0.8-Ω Load

Figure 9-8. Start-Up, Resistive Load

400 Ps/DIV

VIN 2V/DIV

PGOOD 2V/DIV

IOUT 2A/DIV

VOUT 1V/DIV

VIN 48 V to 6 V

0.8-Ω Load

Figure 9-9. Shutdown Through UVLO

EN 1V/DIV

PGOOD 2V/DIV

1 ms/DIV

VOUT 1V/DIV

VIN = 48 V

0.8-Ω Load

Figure 9-10. ENABLE ON, Resistive Load

VOUT 200 mV/DIV

40 Ps/DIV

IOUT 5A/DIV

VIN = 48 V

Figure 9-11. Load Transient Response, 6 A to 12 A

to 6 A

www.ti.com

LM5146

SNVSBV0A – JUNE 2021 – REVISED JUNE 2021

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