TPS54377RHFRG4 datasheet(7/21 Pages) TI

No de pièce	TPS54377RHFRG4

Description	1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT??CONVERTER WITH DISABLED SINKING DURING START-UP

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Fabricant	TI [Texas Instruments]

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TYPICAL CHARACTERISTICS

0

20

40

60

80

100

120

−40

0

25

85

125

VI =3.3V

TJ − JunctionTemperature − °C

0

20

40

60

80

100

−40

0

25

85

125

VI =5V

TJ − JunctionTemperature − °C

450

−40

0

25

550

750

85

125

650

350

250

TJ − Junction Temperature − °C

SYNC

≥ 2.5 V

SYNC

≤ 0.8 V

0.889

−40

0

25

0.895

85

125

0.893

0.887

0.885

TJ − Junction Temperature − °C

0.891

1050

−40

0

25

1100

1200

85

125

1150

1000

T − JunctionT

J

emperature − C

o

RT=43kW

450

500

−40

0

25

600

85

125

550

400

T − JunctionT

J

emperature − C

o

RT=100kW

f − Frequency − Hz

60

40

0

10

100

1 k

10 k 100 k 1 M

80

100

140

10 M

120

20

−20

0

−20

−40

−60

−80

−100

−120

−140

−160

−180

−200

RL= 10 kΩ,

CL = 160 pF,

TA = 25°C

Phase

Gain

TJ − Junction Temperature − °C

3.35

3.20

2.90

−40

0

25

85

3.50

3.65

125

3.80

3.05

2.75

0

0.2

0.4

0.6

0.8

1

1.2

0

1

1.5

2

2.5

0.5

3

I

− OutputCurrent − A

O

T =25 C,

A

o

f =700kHz,

V =5V,

V

=3.3V

s

I

O

TPS54377

SLVS779 – SEPTEMBER 2007

DRAIN-SOURCE ON-STATE

INTERNALLY SET OSCILLATOR

RESISTANCE

FREQUENCY

vs

JUNCTION TEMPERATURE

Figure 1.

Figure 2.

Figure 3.

EXTERNALLY SET OSCILLATOR

FREQUENCY

VOLTAGE REFERENCE

vs

JUNCTION TEMPERATURE

Figure 4.

Figure 5.

Figure 6.

INTERNAL SLOW-START TIME

DEVICE POWER LOSSES

ERROR AMPLIFIER

vs

OPEN LOOP RESPONSE

JUNCTION TEMPERATURE

LOAD CURRENT

Figure 7.

Figure 8.

Figure 9.

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7

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Texas Instruments	TPS54377	824Kb / 23P	[Old version datasheet] 1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT??CONVERTER WITH DISABLED SINKING DURING START-UP

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Description similaire - TPS54377RHFRG4

Fabricant	No de pièce	Fiches technique	Description
Texas Instruments	TPS54377	824Kb / 23P	[Old version datasheet] 1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT??CONVERTER WITH DISABLED SINKING DURING START-UP
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	TPS54973	695Kb / 23P	[Old version datasheet] 3-V TO 4-V INPUT, 9-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-UP
	TPS50301-HT	609Kb / 28P	[Old version datasheet] 1.6-V TO 6.3-V INPUT, 3-A/6-A SYNCHRONOUS STEP DOWN SWIFT CONVERTER
	TPS54873	697Kb / 23P	[Old version datasheet] 4-V TO 6-V INPUT, 8-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-UP

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TPS54377RHFRG4 Fiches technique(PDF) 7 Page - Texas Instruments

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