TPS65140RGER datasheet(4/24 Pages) TI

Part #	TPS65140RGER

Description	TRIPLE OUTPUT LCD SUPPLY WITH LINEAR REGULATOR AND POWER GOOD

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Manufacturer	TI [Texas Instruments]

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TPS65140

TPS65145

SLVS497B – SEPTEMBER 2003 – REVISED MARCH 2004

ELECTRICAL CHARACTERISTICS (continued)

V

in = 3.3 V, EN = VIN, Vo1 = 10 V, TA= -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

MAIN BOOST CONVERTER

Vo1

Output voltage range

5

15

V

VO1-Vin

Minimum input to output

1

V

voltage difference

VREF

Reference voltage

1.205

1.13

1.219

V

Feedback regulation volt-

1.136

1.146

1.154

VFB

V

age

IFB

Feedback input bias cur-

10

100

nA

rent

Vo1 = 10 V, Isw = 500 mA

195

290

N-MOSFET on-resistance

rDS(on)

m

Ω

(Q1)

Vo1 = 5 V, Isw = 500 mA

285

420

TPS65140

1.6

2.3

2.6

A

N-MOSFET switch current

ILIM

limit (Q1)

TPS65145

0.96

1.37

1.56

A

Vo1 = 10 V, Isw = 100 mA

9

15

P-MOSFET on-resistance

rDS(on)

Ω

(Q2)

Vo1 = 5 V, Isw = 100 mA

14

22

Maximum P-MOSFET peak

IMAX

1

A

switch current

Vsw = 15 V

1

10

Ileak

Switch leakage current

µA

Vsw = 0 V

1

10

0

°C ≤ T

A≤ 85°C

1.295

1.6

2.1

fSW

Oscillator frequency

MHz

-40

°C ≤ T

A≤ 85°C

1.191

1.6

2.1

Line regulation

2.7 V

≤ V

I ≤ 5.7 V; Iload = 100 mA

0.012

%/V

Load regulation

0 mA

≤ I

O≤ 300 mA

0.2

%/A

NEGATIVE CHARGE PUMP Vo2

Vo2

Output voltage range

-2

V

Vref

Reference voltage

1.205

1.213

1.219

V

Feedback regulation volt-

VFB

-36

0

36

mV

age

Feedback input bias cur-

IFB

10

100

nA

rent

Q8 P-Channel switch

4.3

8

rDS(on)

IO = 20 mA

Ω

Q9 N-Channel switch

2.9

4.4

rDS(on)

IO

Minimum output current

20

mA

7 V

≤ Vo1 ≤ 15 V, I

load =10 mA, Vo2 = -5

Line regulation

0.09

%/V

V

Load regulation

1 mA

≤ I

O≤ 20 mA, Vo2 = -5 V

0.126

%/mA

POSITIVE CHARGE PUMP Vo3

Vo3

Output voltage range

30

V

Vref

Reference voltage

1.205

1.213

1.219

V

Feedback regulation volt-

VFB

1.187

1.214

1.238

V

age

Feedback input bias cur-

IFB

10

100

nA

rent

4

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