TPS5120_16 datasheet(11/23 Pages) TI1

Part #	TPS5120

Description	DUAL OUTPUT, TWO-PHASE SYNCHRONOUS BUCK DC/DC CONTROLLER

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Manufacturer	TI1 [Texas Instruments]

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TPS5120

DUAL OUTPUT, TWOPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER

SLVS278E – AUGUST 2000 – REVISED MARCH 2003

11

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 2

TJ – Junction Temperature – °C

QUIESCENT CURRENT

vs

JUNCTION TEMPERATURE

1.05

1.10

1.15

1.20

1.25

1.30

–50

0

50

100

150

VCC = 28 V

VCC = 7 V

VCC = 4.5 V

QUIESCENT CURRENT (SHUTDOWN)

vs

JUNCTION TEMPERATURE

0

200

400

600

800

1000

1200

–50

0

50

100

150

VCC = 28 V

VCC = 7 V

VCC = 4.5 V

TJ – Junction Temperature – °C

Figure 3

Figure 4

DRIVE OUTPUT CURRENT (OUT_u)

vs

DRIVE OUTPUT VOLTAGE

–1.80

–1.70

–1.60

–1.50

–1.40

–1.30

–1.20

–1.10

–1.00

–0.90

–0.80

0.5

1

1.5

2

2.5

3

3.5

TJ = –40 °C

TJ = –20 °C

TJ = 25 °C

TJ = 85 °C

TJ = 125 °C

VO – Drive Output Voltage (OUT_u) – V

Figure 5

vs

DRIVE OUTPUT VOLTAGE

0.60

0.70

0.80

0.90

1.00

1.10

1.20

1.30

1.40

1.50

1.5

2

2.5

3

3.5

4

4.5

TJ = –40 °C

TJ = 25 °C

TJ = –20 °C

TJ = 85 °C

TJ = 125 °C

VO – Drive Output Voltage (OUT_u) – V

DRIVE OUTPUT CURRENT (OUT_u)

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