TPS61236PRWLT datasheet(5/38 Pages) TI1

Part #	TPS61236PRWLT

Description	TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current Output Feature

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Manufacturer	TI1 [Texas Instruments]

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5

TPS61235P, TPS61236P

www.ti.com

SLVSCK4A – SEPTEMBER 2015 – REVISED MAY 2016

Product Folder Links: TPS61235P TPS61236P

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7.5 Electrical Characteristics

TJ = –40°C to 125°C and VIN = 3.6 V. Typical values are at TJ = 25°C, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY

VIN

Input voltage

2.3

VOUT – 0.6

V

VUVLO

Input under voltage lockout

VIN rising

2.2

2.3

V

Hysteresis

125

mV

IQ

Quiescent current into VIN

IC enabled, No Load, No switching,

VOUT = 5.1 V

5

11

µA

Quiescent current into VOUT

5

30

µA

ISD

Shutdown current into VIN

IC disabled, TJ = –40°C to 85°C

0.01

3

µA

OUTPUT

VOUT

Output voltage range

TPS61236P

2.9

5.5

V

Output voltage

PWM mode,

TPS61235P

5.0

5.1

5.2

V

PFM mode,

TPS61235

5.2

V

VFB

Feedback voltage

PWM mode,

TPS61236P

1.219

1.244

1.269

V

PFM mode,

TPS61236P

1.256

V

VOVP

Output over voltage protection

threshold

5.60

5.80

5.93

V

ILKG_FB

Leakage current into FB pin

TPS61235P, VFB = 5.1 V

4000

nA

TPS61236P, VFB = 1.244 V

120

nA

ILKG_SW

Leakage current into SW pin

IC disabled, TJ = –40°C to 85°C,

VSW = 5.1 V

0.05

2

µA

ILKG_VOUT

Leakage current into VOUT pin

IC disabled, TJ = –40°C to 85°C,

VOUT = 5.1 V

0.05

2

µA

Line regulation

IOUT = 2A, VIN = 2.7 V to 4.5 V,

VOUT = 5.1 V

0.06

%/V

Load regulation

IOUT = 0.5 A to 3 A, VIN = 3.6 V,

VOUT = 5.1 V

0.06

%/A

POWER STAGE

RDS(on)

High side MOSFET on resistance

VOUT = 5.1 V

14

30

m

Ω

Low side MOSFET on resistance

VOUT = 5.1 V

14

30

m

Ω

fsw

Switching frequency

VOUT = 5.1 V, PWM mode

750

1000

1250

kHz

Constant output current limit accuracy

RCC = 124 kΩ,

TJ = 25°C

–15%

15%

RCC = 61.9 kΩ,

TJ = 25°C

–10%

10%

RCC = 61.9 kΩ,

TJ = –20°C to 125°C

–15%

15%

ILIM

Switch valley current limit

TJ = –20°C to 100°C

6.5

8

9.5

A

ILIM_pre

Precharge mode current limit

VOUT = 0 V,

TJ = 0°C to 125°C

0.05

0.25

0.8

A

VOUT = 2 V

1.3

A

VOUT = 3 V

1.7

A

IINACT_th

Inactive threshold

VOUT = 5.1 V

50

mA

tINACT_delay

Deglitch delay

VOUT = 5.1 V

15

ms

TSD

Thermal shutdown threshold

TJ rising

140

°C

Hysteresis

15

°C

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