TPS53353_15 datasheet(8/37 Pages) TI

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1.080

1.085

1.090

1.095

1.100

1.105

1.110

1.115

1.120

Input Voltage (V)

FCCM, IOUT = 0 A

Skip Mode, IOUT = 0 A

FCCM and Skip Mode, IOUT = 20 A

fSW = 500 kHz

VIN = 12 V

100

0.01

0.1

Output Current (A)

Skip Mode, fSW = 500 kHz

FCCM, fSW = 500 kHz

Skip Mode, fSW = 300 kHz

FCCM, fSW = 300 kHz

VIN = 12 V

VVDD = 5 V

VOUT = 1.1 V

G001

300

600

900

1200

1500

Output Voltage (V)

fSET = 300 kHz

fSET = 500 kHz

fSET = 750 kHz

fSET = 1 MHz

VIN = 12 V

IOUT = 10 A

1.080

1.085

1.090

1.095

1.100

1.105

1.110

1.115

1.120

Output Current (A)

Skip Mode

FCCM

fSW = 500 kHz

VIN = 12 V

VOUT = 1.1 V

G001

100

1000

0.01

0.1

Output Current (A)

FCCM

Skip Mode

VIN = 12 V

VOUT = 1.1 V

fSW = 750 kHz

G001

100

1000

0.01

0.1

Output Current (A)

FCCM

Skip Mode

VIN = 12 V

VOUT = 1.1 V

fSW = 1 MHz

G001

TPS53353

SLUSAK2B – AUGUST 2011 – REVISED FEBRUARY 2015

www.ti.com

Typical Characteristics (continued)

Figure 7. Switching Frequency vs. Output Current

Figure 8. Switching Frequency vs. Output Current

Figure 10. Output Voltage vs. Output Current

Figure 9. Switching Frequency vs. Output Voltage

Figure 12. Efficiency vs Output Current

Figure 11. Output Voltage vs. Input Voltage

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