1

FEATURES

PH

VIN

PGND

BOOT

VSENSE

PWRPAD

BIAS

ENA

PWRGD

Input

Voltage

Output

Voltage

LSG

TPS54356

SYNC

APPLICATIONS

50

55

60

65

70

75

80

85

90

95

100

0

1

2

3

4

EFFICIENCY

vs

OUTPUT CURRENT

SUPPORTS DEFENSE, AEROSPACE,

TPS54352-EP

,, TPS54353-EP,, TPS54354-EP

TPS54355-EP

, TPS54356-EP, TPS54357-EP

4.5-V TO 20-V INPUT, 3-A OUTPUT SYNCHRONOUS PWM SWITCHES

WITH INTEGRATED FET (SWIFT™)

SIMPLIFIED SCHEMATIC

2

• 100-mΩ, 4.5-A Peak MOSFET Switch for High

Efficiency at 3-A Continuous Output Current

• Use External Low-Side MOSFET or Diode

• Fixed-Output Versions – 1.2 V/1.5 V/1.8 V/

2.5 V/3.3 V/5 V

• Internally Compensated for Low Parts Count

• Synchronize to External Clock

• 180° Out-of-Phase Synchronization

• Wide Pulse Width Modulation (PWM)

Frequency – Fixed 250 kHz,

500 kHz, or Adjustable 250 kHz to 700 kHz

• Internal Slow Start

• Load Protected by Peak Current Limit and

Thermal Shutdown

• Adjustable Undervoltage Lockout

• 16-Pin PowerPAD™ Thin Shrink Small-Outline

Package (TSSOP) (PWP)

• Industrial and Commercial Low-Power

Systems

• LCD Monitors and TVs

• Computer Peripherals

• Point-of-Load Regulation for High

Performance DSPs, FPGAs, ASICs, and

Microprocessors

AND MEDICAL APPLICATIONS

• Controlled Baseline

• One Assembly/Test Site

• One Fabrication Site

• Available in Military (–55°C/125°C)

• Extended Product Life Cycle

• Extended Product-Change Notification

• Product Traceability

(1)

Additional temperature ranges are available - contact factory

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

SWIFT, PowerPAD are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2009, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.