TPS65023-Q1 datasheet(9/53 Pages) TI1

Part #	TPS65023-Q1

Description	POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS

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Manufacturer	TI1 [Texas Instruments]

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9 / 53 page

TPS65023-Q1

www.ti.com

SLVS927D

– MARCH 2009 – REVISED SEPTEMBER 2011

ELECTRICAL CHARACTERISTICS

VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, TA = –40°C to 125°C, typical values are

at TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VDCDC3 STEP-DOWN CONVERTER

VI

Input voltage range, VINDCDC3

2.5

6

V

DEFDCDC3 = GND

1000

IO

Maximum output current

mA

VINDCDC3 = 3.6 V,

525

3.3 V - 1%

≤ VDCDC3 ≤ 3.3 V + 1%

I(SD)

Shutdown supply current in VINDCDC3

DCDC3_EN = GND

0.1

1

μA

rDS(on)

P-channel MOSFET on-resistance

VINDCDC3 = V(GS) = 3.6 V

310

698

m

Ω

Ilkg

P-channel leakage current

VINDCDC3 = 6 V

0.1

2

μA

rDS(on)

N-channel MOSFET on-resistance

VINDCDC3 = V(GS) = 3.6 V

220

503

m

Ω

Ilkg

N-channel leakage current

V(DS) = 6 V

7

10

μA

Forward current limit (P-channel and

2.5 V

< VINDCDC3 < 6 V

1.28

1.49

1.69

A

N-channel)

fS

Oscillator frequency

1.95

2.25

2.55

MHz

VINDCDC3 = 2.5 V to 6 V,

VDCDC3 = 1.8 V

–2

2

0 mA

≤ IO ≤ 1 A

Fixed output voltage

%

FPWMDCDC3=0

VINDCDC3 = 3.6 V to 6 V,

VDCDC3 = 3.3 V

–1

1

0 mA

≤ IO ≤ 1 A

VINDCDC3 = 2.5 V to 6 V,

VDCDC3 = 1.8 V

–2

2

0 mA

≤ IO ≤ 1 A

Fixed output voltage

%

FPWMDCDC3=1

VINDCDC3 = 3.6 V to 6 V,

VDCDC3 = 3.3 V

–1

1

0 mA

≤ IO ≤ 1 A

Adjustable output voltage with resistor

VINDCDC3 = VDCDC3 + 0.5 V (min 2.5 V)

–2%

2%

divider at DEFDCDC3 FPWMDCDC3=0

to 6 V, 0 mA

≤ IO ≤ 800 mA

Adjustable output voltage with resistor

VINDCDC3 = VDCDC3 + 0.5 V (min 2.5 V)

–1%

1%

divider at DEFDCDC3, FPWMDCDC3=1

to 6 V, 0 mA

≤ IO ≤ 800 mA

VINDCDC3 = VDCDC3 + 0.3 V (min. 2.5 V)

Line Regulation

0

%/V

to 6 V, IO = 10 mA

Load Regulation

IO = 10 mA to 1000 mA

0.25

%/A

VDCDC3 ramping from 5% to 95% of target

Soft start ramp time

750

μs

value

Internal resistance from L3 to GND

1

M

Ω

VDCDC3 discharge resistance

DCDC3 discharge =1

300

Ω

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