TPS54315PWP datasheet(6/10 Pages) TI

Part #	TPS54315PWP

Description	3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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6 / 10 page

TPS54311, TPS54312

TPS54313, TPS54314

TPS54315, TPS54316

SLVS416A – FEBRUARY 2002 – JULY 2003

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6

FUNCTIONAL BLOCK DIAGRAM

VI

Falling

Edge

Deglitch

Enable

Comparator

1.2 V

VIN

2.95 V

Hysteresis: 0.03 V

2.5

µs

Falling

and

Rising

Edge

Deglitch

2.5

µs

VIN UVLO

Comparator

Hysteresis: 0.16 V

Internal/External

Slow-Start

(Internal Slow-Start Time =

3.3 ms to 6.6 ms)

VI

Feed-Forward

Compensation

–

+

Error

Amplifier

Thermal

Shutdown

145

°C

SHUTDOWN

SS_DIS

PWM

Comparator

OSC

Leading

Edge

Blanking

100 ns

RQ

S

Adaptive Dead-Time

and

Control Logic

SHUTDOWN

VIN

REG

VBIAS

VIN

BOOT

VIN

PH

LOUT

CO

PGND

PWRGD

Falling

Edge

Deglitch

35

µs

VSENSE

SHUTDOWN

0.90 Vref

Hysteresis: 0.03 Vref

Power good

Comparator

AGND

VBIAS

ILIM

Comparator

VIN

VO

FSEL

RT

VSENSE

SS/ENA

TPS5431x

5

µA

Reference/

DAC

2 k

Ω

40 k

Ω

25 ns Adaptive

Deadtime

Similar Part No. - TPS54315PWP

Manufacturer	Part #	Datasheet	Description
Texas Instruments	TPS54315PWP	747Kb / 22P	[Old version datasheet] 3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT)
	TPS54315PWPG4	747Kb / 22P	[Old version datasheet] 3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT)
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TPS54315PWP Datasheet(PDF) 6 Page - Texas Instruments

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