LT7153SP datasheet(12/31 Pages) AD

12 / 31 page

Data Sheet

LT7153SP

analog.com

Rev 0

12 of 31

Figure 10. Transient Response, DCM

VIN = 3.3V, VOUT = 0.5V, IOUT = 50mA to 8A, fSW = 1MHz

L = 70nH, COUT = 5x100μF, RITH = 2kΩ, CITH = 10nF

Figure 11. Transient Response, FCM

VIN = 3.3V, VOUT = 0.5V, IOUT = 50mA to 8A, fSW = 1MHz

L = 70nH, COUT = 5x100μF, RITH = 2kΩ, CITH = 10nF

Figure 12. Transient Response, FCM

VIN = 3.3V, VOUT = 0.5V, IOUT = 8A to 16A, fSW = 1MHz

L = 70nH, COUT = 5x100μF, RITH = 1kΩ, CITH = 10nF

Figure 13. Output Tracking

VIN = 3.3V, VOUT = 0.5V, ROUT = 0.1Ω, fSW = 1MHz

L = 70nH, COUT = 5x100μF, RITH = 2kΩ, CITH = 10nF

Figure 14. Start-up Waveform

VIN = 3.3V, VOUT = 0.5V, ROUT = 0.1Ω, fSW = 1MHz

L = 70nH, COUT = 5x100μF, RITH = 2kΩ, CITH = 10nF

CTRACK/SS = 4.7μF

Figure 15. Start-up Waveform (with Prebiased Output)

VIN = 3.3V, VOUT = 0.5V, ROUT = 0.1Ω, fSW = 1MHz

L = 70nH, COUT = 5x100μF, RITH = 2kΩ, CITH = 10nF

CTRACK/SS = 4.7μF

100µs/DIV

VOUT

AC-COUPLED

50mV/DIV

LOAD STEP

5A/DIV

100µs/DIV

VOUT

AC-COUPLED

50mV/DIV

LOAD STEP

5A/DIV

100µs/DIV

VOUT

AC COUPLED

50mV/DIV

LOAD STEP

5A/DIV

1ms/DIV

VTRACK/SS

500mV/DIV

VOUT

500mV/DIV

50ms/DIV

VRUN

3V/DIV

VPGOOD

3V/DIV

VOUT

500mV/DIV

50ms/DIV

VRUN

3V/DIV

VPGOOD

3V/DIV

VOUT

500mV/DIV

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