TPS43333QDAPRQ1 datasheet(7/42 Pages) TI1

Part #	TPS43333QDAPRQ1

Description	LOW IQ, SINGLE BOOST, DUAL SYNCHRONOUS BUCK CONTROLLER

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Manufacturer	TI1 [Texas Instruments]

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TPS43333-Q1

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SLVSB48B – AUGUST 2012 – REVISED APRIL 2013

DC ELECTRICAL CHARACTERISTICS (continued)

VIN = 8 V to 18 V, TJ = –40°C to 150°C (unless otherwise noted)

NO.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

12.0

Power Good / Delay

12.1

PGpullup

Pullup for A and B to Sx2

50

k

Ω

12.2

PGth1

Power-good threshold

FBx falling

–5%

–7%

–9%

12.3

PGhys

Hysteresis

2%

12.4

PGdrop

Voltage drop

IPGA = 5 mA

450

mV

12.5

IPGA = 1 mA

100

mV

12.6

PGleak

Power-good leakage

VSx2 = VPGx = 13 V

1

µA

12.7

tdeglitch

Power-good deglitch time

2

16

µs

External capacitor = 1 nF

12.8

tdelay

Reset delay

1

ms

VBUCKX < PGth1

12.9

tdelay_fix

Fixed reset delay

No external capacitor, pin open

20

50

µs

Activate current source (current to

12.10

IOH

30

40

50

µA

charge external capacitor)

Activate current sink (current to

12.11

IIL

30

40

50

µA

discharge external capacitor)

13.0

Overtemperature Protection

Junction-temperature shutdown

13.1

Tshutdown

150

165

°C

threshold

13.2

Thys

Junction-temperature hysteresis

15

°C

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