TPS54312-EP

ACTIVE

Enhanced Product 3-V To 6-V In, 3-A Out, Synchronous-Buck Pwm Switchers W/ Integrated Fets

Product details

Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 6 Switching frequency (min) (kHz) 280 Switching frequency (max) (kHz) 700 Features Enable, Power good, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Iq (typ) (µA) 6200 Duty cycle (max) (%) 90
Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 6 Switching frequency (min) (kHz) 280 Switching frequency (max) (kHz) 700 Features Enable, Power good, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.2 Vout (max) (V) 1.2 Iq (typ) (µA) 6200 Duty cycle (max) (%) 90
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree(1)
  • 60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current
  • 0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V Fixed Output Voltage Device With 1% Initial Accuracy
  • Internally Compensated for Low Parts Count
  • Fast Transient Response
  • Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Total Cost
  • APPLICATIONS
    • Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure
    • Automotive Telematics

(1) Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

SWIFT, PowerPAD are trademarks of Texas Instruments.

  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of -55°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree(1)
  • 60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current
  • 0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V and 3.3 V Fixed Output Voltage Device With 1% Initial Accuracy
  • Internally Compensated for Low Parts Count
  • Fast Transient Response
  • Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Total Cost
  • APPLICATIONS
    • Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure
    • Automotive Telematics

(1) Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

SWIFT, PowerPAD are trademarks of Texas Instruments.

As A member of the SWIFT™ family of dc/dc regulators, the TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 low-input-voltage high-output current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

The TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 devices are available in a thermally enhanced 20-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. Texas Instruments 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.

As A member of the SWIFT™ family of dc/dc regulators, the TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 low-input-voltage high-output current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

The TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 devices are available in a thermally enhanced 20-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. Texas Instruments 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.

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Technical documentation

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Type Title Date
* Data sheet 3-V to 6-V Input, 3-A Output Synchronous-Buck PWM datasheet (Rev. A) 14 Mar 2007
* Radiation & reliability report TPS54312MPWPREP Reliability Report 26 Aug 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

TPS54312xx TINA-TI Transient Reference Design

SLVM189.TSC (841 KB) - TINA-TI Reference Design
Simulation model

TPS54312xx TINA-TI Transient Spice Model

SLVM190.ZIP (36 KB) - TINA-TI Spice Model
Package Pins CAD symbols, footprints & 3D models
HTSSOP (PWP) 20 Ultra Librarian

Ordering & quality

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Information included:
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