TPS54316MPWPREP datasheet(7/22 Pages) TI2

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TYPICAL CHARACTERISTICS

100

120

−40

125

IO = 3 A

VI = 3.3 V

TJ − Junction Temperature − °C

DRAIN-SOURCE ON-STATE RESISTANCE

JUNCTION TEMPERATURE

100

−40

125

IO = 3 A

VI = 5 V

TJ − Junction Temperature − °C

DRAIN-SOURCE ON-STATE RESISTANCE

JUNCTION TEMPERATURE

450

−40

550

INTERNALLY SET OSCILLATOR

FREQUENCY

JUNCTION TEMPERATURE

750

125

650

350

250

TJ − Junction Temperature − °C

FSEL

≥ 2.5 V

FSEL

≤ 0.8 V

0.8850

0.8870

0.8890

0.8910

0.8930

0.8950

f = 350 kHz

TA = 85°C

VI − Input Voltage − V

OUTPUT VOLTAGE REGULATION

INPUT VOLTAGE

0.889

−40

VOLTAGE REFERENCE

JUNCTION TEMPERATURE

0.895

125

0.893

0.887

0.885

TJ − Junction Temperature − °C

0.891

400

−40

500

EXTERNALLY SET OSCILLATOR

FREQUENCY

JUNCTION TEMPERATURE

800

125

700

300

200

TJ − Junction Temperature − °C

600

RT = 68 k

RT = 100 k

RT = 180 k

f − Frequency − Hz

100

1 k

10 k 100 k 1 M

100

ERROR AMPLIFIER

OPEN LOOP RESPONSE

140

10 M

120

−20

−40

−60

−80

−100

−120

−140

−160

−180

−200

RL= 10 kΩ,

CL = 160 pF,

TA = 25°C

Phase

Gain

0.25

0.5

0.75

1.25

1.5

1.75

2.25

IL − Load Current − A

DEVICE POWER LOSSES

LOAD CURRENT

TJ − 125°C,

fs = 700 kHz

VI = 3.3 V

VI = 5 V

TJ − Junction Temperature − °C

3.35

3.20

2.90

−40

3.50

3.65

INTERNAL SLOW-START TIME

JUNCTION TEMPERATURE

125

3.80

3.05

2.75

TPS54311-EP, TPS54312-EP,

TPS54313-EP, TPS54314-EP,

TPS54315-EP, TPS54316-EP

SGLS376A – FEBRUARY 2007 – REVISED MARCH 2007

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

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