TPS54310PWP ,Q1Table of Contents8.2 Functional
TPS54310PWPG4 ,Q1Maximum Ratings.. 411.1 Layout Guidelines.... 187.2 ESD Ratings........ 411.2 Layout Example....... ..
TPS54310PWPR ,Q1Features... 18.3 Feature Description.... 102 Applications..... 18.4 Device Functional Modes.... 123 ..
TPS54310PWPRG4 ,3V to 6V Input, 3A Synchronous Step-Down SWIFT? Converter 20-HTSSOP -40 to 125features are a true,• Externally Compensated for Design Flexibility high performance, voltage error ..
TPS54310QPWPRQ1 ,Q1 TPS54310-Q1SGLS280D − JANUARY 2005 − REVISED JUNE 2009RECOMMENDED OPERATING CONDITIONSMIN NOM MAX ..
TPS54310QPWPRQ1 ,Q1features are a true, high-performance,1% Accuracyvoltage error amplifier that provides high perform ..
TSH110ILT , WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
TSH110ILT , WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
TSH110ILT , WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
TSH111ID , WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
TSH112ID , WIDE BAND, LOW NOISE OPERATIONAL AMPLIFIERS
TSH24IN , HIGH PERFORMANCE QUAD BIPOLAR OPERATIONAL AMPLIFIER
TPS54310-TPS54310PWP-TPS54310PWPG4-TPS54310PWPR-TPS54310PWPRG4
Q1
Simplified Schematic 0.5 1 1.5 2 2.5 3
LoadCurrent−A
ffic= 25°C
VI=5V =3.3V
VIN PH
BOOT
PGND
VSENSE
Output
COMPAGND
VBIAS
Input
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TPS54310SLVS412E –DECEMBER 2001–REVISED DECEMBER 2014
3-V to 6-V Input, 3-A Output Synchronous-Buck PWM Switcher With Integrated FETs
(SWIFT™) Features 3 Description members of the SWIFT™ family of dc/dc 60-mΩ MOSFET Switches for High Efficiencyat regulators, the TPS54310 low-input-voltage high-3-A Continuous Output Sourceor Sink Current output-current synchronous-buck PWM converter• Adjustable Output Voltage Downto 0.9V With 1% integrates all required active components. IncludedAccuracy on the substrate with the listed features area true,
high performance, voltage error amplifier that• Externally Compensatedfor Design Flexibility
provides high performance under transient conditions;• Fast Transient Response an undervoltage-lockout circuit to prevent start-up• Wide PWM Frequency: Fixed 350 kHz, 550 kHz, until the input voltage reaches3V; an internally andor Adjustable 280 kHzto 700 kHz externally set slow-start circuit to limit in-rush Load Protectedby Peak Current Limit and currents; and a power good output useful for
processor/logic reset, fault signaling, and supplyThermal Shutdown
sequencing.• Integrated Solution Reduces Board Area and
Total Cost The TPS54310 deviceis availableina thermally
enhanced 20-pin HTSSOP (PWP) PowerPAD™
package, which eliminates bulky heatsinks. TI
2 Applicationsprovides evaluation modules and the SWIFT designer• Low-Voltage, High-Density Systems With Power software tool to aid in quickly achieving high-Distributedat5Vor 3.3V performance power supply designs to meet Pointof Load Regulationfor High aggressive equipment development cycles.
Performance DSPs, FPGAs, ASICs, and
Device Information(1)Microprocessors• Broadband, Networking and OpticalCommunications Infrastructure• Portable Computing/Notebook PCs
(1) Forall available packages, see the orderable addendumat
the endofthe datasheet.
