TPS54972PWPR datasheet(7/22 Pages) TI2

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–40

125

VI = 3.6 V

IO = 9 A

TJ – Junction T emperature – °C

250

350

450

550

650

750

–40

125

TJ – Junction Temperature – °C

RT = Open

–40

125

VIN = 3.0 V

IO = 9 A

TJ – Junction T emperature – °C

200

300

400

500

600

700

800

–40

125

TJ – Junction Temperature – °C

RT = 68 kΩ

RT = 100 kΩ

RT = 180 kΩ

IL – Load Current – A

VI = 3.3 V

TJ = 125°C

fS = 700kHz

2.75

2.90

3.05

3.20

3.35

3.50

3.65

–40

125

TJ – Junction Temperature – °C

3.80

–20

100

120

140

100

1 k

1 M

–200

–180

–160

–140

–120

–100

–80

–60

–40

–20

10 k

100 k

10 M

f – Frequency – Hz

Phase

Gain

RL = 10 kΩ,

CL = 160 pF,

TA = 25°C

TPS54972

www.ti.com

SLVS437B – AUGUST 2002 – REVISED AUGUST 2010

TYPICAL CHARACTERISTICS

DRAIN-SOURCE ON-STATE

INTERNALLY SET OSCILLATOR

RESISTANCE

FREQUENCY

JUNCTION TEMPERATURE

Figure 1.

Figure 2.

Figure 3.

EXTERNALLY SET OSCILLATOR

FREQUENCY

DEVICE POWER LOSSES

INTERNAL SLOW-START TIME

JUNCTION TEMPERATURE

LOAD CURRENT

JUNCTION TEMPERATURE

Figure 4.

Figure 5.

Figure 6.

ERROR AMPLIFIER

OPEN LOOP RESPONSE

Figure 7.

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