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TPS54356-EP Datasheet Preview

TPS54356-EP Datasheet

3-A Output Synchronous PWM Switcher

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TPS54352-EP, TPS54353-EP, TPS54354-EP
TPS54355-EP, TPS54356-EP, TPS54357-EP
www.ti.com ....................................................................................................................................................... SLVS684A – JANUARY 2007 – REVISED JULY 2009
4.5-V TO 20-V INPUT, 3-A OUTPUT SYNCHRONOUS PWM SWITCHES
WITH INTEGRATED FET (SWIFT™)
FEATURES
1
2 100-m, 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)
APPLICATIONS
Industrial and Commercial Low-Power
Systems
LCD Monitors and TVs
Computer Peripherals
Point-of-Load Regulation for High
Performance DSPs, FPGAs, ASICs, and
Microprocessors
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
Controlled Baseline
One Assembly/Test Site
One Fabrication Site
Available in Military (–55°C/125°C)
Temperature Range(1)
Extended Product Life Cycle
Extended Product-Change Notification
Product Traceability
(1) Additional temperature ranges are available - contact factory
SIMPLIFIED SCHEMATIC
TPS54356
SYNC
VIN
PWRGD
ENA
BIAS
BOOT
PH
Input
Voltage
LSG
PGND
VSENSE
PWRPAD
Output
Voltage
100
95
90
85
80
75
70
65
60
55
50
0
EFFICIENCY
vs
OUTPUT CURRENT
VI = 6 V
VI = 12 V
VI= 12 V
VO= 3.3 V
fs = 500 kHz
1
2
3
4
IO − Output Current − A
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.
SWIFT, PowerPAD are trademarks of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2009, Texas Instruments Incorporated




etcTI

TPS54356-EP Datasheet Preview

TPS54356-EP Datasheet

3-A Output Synchronous PWM Switcher

No Preview Available !

TPS54352-EP, TPS54353-EP, TPS54354-EP
TPS54355-EP, TPS54356-EP, TPS54357-EP
SLVS684A – JANUARY 2007 – REVISED JULY 2009 ....................................................................................................................................................... www.ti.com
DESCRIPTION/ORDERING INFORMATION
The TPS5435x is a medium-output-current synchronous buck PWM converter with an integrated high-side
MOSFET and a gate driver for an optional low-side external MOSFET. Features include a high-performance
voltage error amplifier that enables maximum performance under transient conditions. The TPS5435x has an
undervoltage lockout (UVLO) circuit to prevent start-up until the input voltage reaches a preset value, an internal
slow-start circuit to limit in-rush currents, and a power-good (PWRGD) output to indicate valid output conditions.
The synchronization feature is configurable as either an input or an output for easy 180° out-of-phase
synchronization.
The TPS5435x devices are available in a thermally enhanced 16-pin PowerPAD™ Thin Shrink Small-Outline
Package (TSSOP). TI provides evaluation modules and the SWIFT™ Designer software tool to aid in quickly
achieving high-performance power-supply designs to meet aggressive equipment development cycles.
2
Submit Documentation Feedback
Copyright © 2007–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS54352-EP TPS54353-EP TPS54354-EP TPS54355-EP TPS54356-EP TPS54357-EP


Part Number TPS54356-EP
Description 3-A Output Synchronous PWM Switcher
Maker etcTI
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