LM5177DCPR datasheet(45/60 Pages) TI2

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Table 8-3. Components Example for Typical Application (continued)

Reference

Description

Part Number

1.8μH, DCR = 3.2mΩ

IHLP-5050FD-A1

COUT1

5× 10µF, 50V Ceramic Capacitor

GCM32EC71H106KA03

COUT2

1× 100μF, 63V Aluminum Capacitor

PCR1J101MCL1GS

RISNS

4mΩ

KRL2012E-C-R004-F

CBST1

0.1µF, 35V Ceramic Capacitor

GRT033R6YA104KE01

CBST2

0.1µF, 35V Ceramic Capacitor

GRT033R6YA104KE01

CVCC

47µF, 6.3V Ceramic Capacitor

GRM188R60J476ME15D

RUVLO,top

75kΩ

RUVLO,bot

20.5kΩ

RSLOPE

69.8kΩ

RCFG

13.3kΩ

RRT

75kΩ

8.2.3 Application Curves

Figure 8-2. Start-up waveform standby to active

operation

(MODE = V(VCC), Vo = 12 V, Io = 0 A, V(VIN) = 12 V)

Figure 8-3. Inductor current boost operation

(MODE = V(VCC), Vo = 12 V, Io = 0 A, V(VIN) = 6 V)

Figure 8-4. Inductor current buck-boost operation

(MODE = V(VCC), Vo = 12 V, Io = 0 A, V(VIN) = 12 V)

Figure 8-5. Inductor current buck operation

(MODE = V(VCC), Vo = 12 V, Io = 0 A, V(VIN) = 24 V)

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LM5177

SNVSBU4F – JUNE 2022 – REVISED JANUARY 2025

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