TPS5120_15 datasheet(10/24 Pages) TI

Part #	TPS5120

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

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Manufacturer	TI [Texas Instruments]

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TPS5120

DUAL OUTPUT, TWOPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER

SLVS278E – AUGUST 2000 – REVISED MARCH 2003

10

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

electrical characteristics over recommended free-air temperature range, VCC = 7 V (unless

otherwise noted) (continued)

5-V regulator

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VO

Output voltage

IO = 0 mA to 50 mA,

TA = 25°C

VCC = 5.5 V to 28 V,

4.8

5.2

V

R(egin)

Line regulation

VCC = 5.5 V to 28 V,

I =10 mA

20

mV

R(egl)

Load regulation

I = 1 mA to 10 mA,

VCC = 5.5 V

40

mV

IOS

Short circuit output current

5VREG = 0 V,

TA = 25°C

65

mA

V(TO_H)

UVLO threshold voltage

5V OUT voltage

3.6

4.2

V

V(TO_L)

UVLO threshold voltage

5V_OUT voltage

3.5

4.1

V

Vhys

Hysteresis

5V_OUT voltage

30

150

mV

output drivers

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OUT_u sink current

VO = 3 V

1.2

A

OUT_u source current

VO = 2 V

–1.5

A

OUT_d sink current

VO = 3 V

1.5

A

OUT_d source current

VO = 2 V

–1.5

A

I(TRIP)

TRIP pin current

TA = 25°C

11.5

13

14.5

µA

soft start

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

I(SOFT)

Soft start current

1.6

2.3

2.9

µA

V(TO_H)

Threshold voltage (SKIP mode)

3.7

V

V(TO_L)

Threshold voltage (SKIP mode)

2.5

V

output voltage monitor

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OVP comparator threshold

0.91

0.95

0.99

V

UVP comparator threshold

0.64

0.68

0.72

V

PG comparator 1, 2 threshold

0.75

0.78

0.81

V

PG comparator 3, 4 threshold

0.88

0.91

0.94

V

PG propagation dela from INV to POWERGOOD

Turnon

13

s

PG propagation delay from INV to POWERGOOD

Turnoff

1.2

µs

Timer latch current source

UVP protection

1.5

2.3

3.1

A

Timer latch current source

OVP protection

8

11.5

15

µA

supply current

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ICC

Supply current

TA = 25°C, CT = 0 V, INV = 0 V

1.1

1.5

mA

ICC(S)

Shutdown current

STBY 1, STBY2, 5V_STBY = 0 V

0.001

10

µA

Similar Part No. - TPS5120_15

Manufacturer	Part #	Datasheet	Description
Texas Instruments	TPS5120	840Kb / 23P	[Old version datasheet] DUAL OUTPUT, TWO-PHASE SYNCHRONOUS BUCK DC/DC CONTROLLER

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