TPS543C20 datasheet(7/33 Pages) TI1

Part #	TPS543C20

Description	4 Vin to 19 Vin, 25-A Stackable, Synchronous Step-down SWIFT Converter with Adaptive Internal Compensation

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TPS543B20

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SLUSCR1 – MAY 2017

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Electrical Characteristics (continued)

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INTERNAL REFERENCE VOLTAGE

VINTREF

Internal REF voltage

RVSEL=OPEN

1000

mV

VINTREFTOL

Internal REF voltage tolerance

TJ= -40°C to 125°C

–0.5%

+0.5%

0.6 V

≤ V ≤ 1.1 V

–1.0%

+1.0%

VINTREF_VSEL

Internal REF voltage range

Pragramable by VSEL (Pin 36)

0.6

1.10

V

OUTPUT VOLTAGE

IRSP

RSP input current

VRSP= 600 mV

–1

1

µA

DIFFERENTIAL REMOTE SENSE AMPLIFIER

fUGBW

Unity gain bandwidth(1)

5

8.5

MHz

A0

Open loop gain(1)

75

dB

SR

SLew rate(1)

±10

V/µs

VICM

Input common mode range(1)

–0.2

1.7

V

VOFFSET

Input offset voltage(1)

VRSN-VGND = 0 mV

–1.0

1.0

mV

VRSN-VGND = ±100 mV

–1.9

1.9

SWITCHING FREQUENCY

FSW

VO switching frequency Max

frequency for multi-phase is

1MHz

VIN = 12 V, VVO= 1.0 V, RT = 66.5 kΩ

300

kHz

VIN = 12 V, VVO= 1.0 V, RT = 48.7 kΩ

400

VIN = 12 V, VVO= 1.0 V, RT = 39.2 kΩ

500

VIN = 12 V, VVO= 1.0 V, RT = 28.0 kΩ

700

VIN = 12 V, VVO= 1.0 V, RT = 22.6 kΩ

850

VIN = 12 V, VVO= 1.0 V, RT = 19.1 kΩ

1000

VIN = 12 V, VVO= 1.0 V, RT = 15.4 kΩ

1200

VIN = 12 V, VVO= 1.0 V, RT = 8.06 kΩ

2000

tON(min)

Minimum on time(1)

DRVH rising to falling

30

ns

tOFF(min)

Minimum off time(1)

DRVH falling to rising

250

ns

INTERNAL BOOTSTRAP SWITCH

VF

Forward voltage

VBP-VBST, TA= 25°C, IF= 5 mA

0.1

0.2

V

VSEL

Internal reference voltage

RVSEL= 0 kΩ

0.6

V

RVSEL= 8.66 kΩ

0.7

RVSEL= 15.4 kΩ

0.75

RVSEL= 23.7 kΩ

0.8

RVSEL= 34.8 kΩ

0.85

RVSEL= 51.1 kΩ

0.9

RVSEL= 78.7 kΩ

0.95

RVSEL= OPEN

1.0

RVSEL= 121 kΩ

1.05

RVSEL= 187 kΩ

1.1

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