TPS53513 datasheet(6/44 Pages) TI2

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TPS53513

SLUSBP9C – SEPTEMBER 2013 – REVISED JUNE 2018

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(1)

Resistor divider ratio (RDR) is described in Equation 1.

(2)

Specified by design. Not production tested.

6.5 Electrical Characteristics

over operating free-air temperature range, VREG = 5 V, EN = 5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY CURRENT

IVDD

VDD bias current

TA = 25°C, No load

Power conversion enabled (no switching)

1350

1850

µA

IVDDSTBY

VDD standby current

TA = 25°C, No load

Power conversion disabled

850

1150

µA

IVIN(leak)

VIN leakage current

VEN = 0 V

0.5

µA

VREF OUTPUT

VVREF

Reference voltage

FB w/r/t GND, TA = 25°C

597

600

603

VVREFTOL

Reference voltage tolerance

FB w/r/t GND, TJ = 0°C to 85°C

–0.6%

0.5%

FB w/r/t GND, TJ = –40°C to 85°C

–0.7%

0.5%

OUTPUT VOLTAGE

IFB

FB input current

VFB = 600 mV

100

IVODIS

VO discharge current

VVO = 0.5 V, Power Conversion Disabled

SMPS FREQUENCY

fSW

VO switching frequency(1)

VIN = 12 V, VVO = 3.3 V, RDR < 0.041

250

kHz

VIN = 12 V, VVO = 3.3 V, RDR = 0.096

300

VIN = 12 V, VVO = 3.3 V, RDR = 0.16

400

VIN = 12 V, VVO = 3.3 V, RDR = 0.229

500

VIN = 12 V, VVO = 3.3 V, RDR = 0.297

600

VIN = 12 V, VVO = 3.3 V, RDR = 0.375

750

VIN = 12 V, VVO = 3.3 V, RDR = 0.461

850

VIN = 12 V, VVO = 3.3 V, RDR > 0.557

1000

tON(min)

Minimum on-time

TA = 25°C

(2)

tOFF(min)

Minimum off-time

TA = 25°C

175

240

310

INTERNAL BOOTSTRAP SW

Forward Voltage

VVREG–VBST, TA = 25°C, IF = 10 mA

0.15

0.25

IVBST

VBST leakage current

TA = 25°C, VVBST = 33 V, VSW = 28 V

0.01

1.5

µA

LOGIC THRESHOLD

VENH

EN enable threshold voltage

1.3

1.4

1.5

VENL

EN disable threshold voltage

1.1

1.2

1.3

VENHYST

EN hysteresis voltage

0.22

VENLEAK

EN input leakage current

–1

µA

SOFT START

tSS

Soft-start time

PGOOD COMPARATOR

VPGTH

VDDQ PGOOD threshold

PGOOD in from higher

104%

108%

111%

PGOOD in from lower

89%

92%

96%

PGOOD out to higher

113%

116%

120%

PGOOD out to lower

80%

84%

87%

IPG

PGOOD sink current

VPGOOD = 0.5 V

tPGDLY

PGOOD delay time

Delay for PGOOD going in

0.8

1.0

1.2

Delay for PGOOD coming out

µs

IPGLK

PGOOD leakage current

VPGOOD = 5 V

–1

µA

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