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TPS5120 Synchronous Buck Controllers

TI offers its TPS5120 dual output, two-phase synchronous buck controller with wide input voltage range

Image of Texas Instruments' TPS5120 Synchronous Buck ControllersTexas Instruments' TPS5120 is a dual-channel, high-efficiency synchronous buck controller where the outputs run 180° out of phase, which lowers the input current ripple, thereby reducing the input capacitance cost. The PWM/SKIP pin allows the operating mode to switch from PWM mode to skip mode under light load conditions. The skip mode enables a lower operating frequency and shortens the pulse width to the low-side MOSFET, increasing the efficiency under light load conditions. These two modes, along with synchronous-rectifier drivers, dead time, and very low quiescent current, allow power to be conserved and the battery life to be extended under all load conditions. The 1.5 A (typical) high-side and low-side MOSFET drivers on-chip are designed to drive less expensive N-channel MOSFETs. The resistorless current protection and fixed high-side driver voltage simplify the power supply design and reduce the external parts count. Each channel is independent, offering a separate controller, overcurrent protection, and standby control. Sequencing is flexible and can be tailored by choosing different softstart capacitor values. Other features, such as undervoltage lockout, power good, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.

Features
  • Independent dual-outputs operate 180° out of phase
  • Wide input voltage range: 4.5 V to 28 V
  • Adjustable output voltage down to 0.9 V
  • Pin-selectable PWM/SKIP mode for high efficiency under light loads
  • Synchronous buck operation allows up to 95% efficiency
  • Separate standby control and overcurrent protection per channel
  • Programmable short-circuit protection
  • Low supply (1 mA) and shutdown (1 nA) current
  • Power good output
  • High-speed error amplifiers
  • Sequencing easily achieved by selecting softstart capacitor values
  • 5 V linear regulator power internal IC circuitry
  • 30-pin TSSOP packaging

TPS5120 Synchronous Buck Controllers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC REG CTRLR BUCK 30TSSOPTPS5120DBTIC REG CTRLR BUCK 30TSSOP82 - Immediate
3240 - Factory Stock
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IC REG CTRLR BUCK 30TSSOPTPS5120DBTRIC REG CTRLR BUCK 30TSSOP2308 - Immediate
10001 - Factory Stock
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IC REG CTRLR BUCK 30TSSOPTPS5120QDBTRQ1G4IC REG CTRLR BUCK 30TSSOP0View Details
IC REG CTRLR BUCK 30TSSOPTPS5120QDBTREPIC REG CTRLR BUCK 30TSSOP0View Details
IC REG CTRLR BUCK 30TSSOPTPS5120MDBTREPIC REG CTRLR BUCK 30TSSOP0View Details
IC REG CONV DDR 1OUT 10SONTPS51206DSQRIC REG CONV DDR 1OUT 10SON5650 - ImmediateView Details
IC REG CONV DDR 1OUT 10VSONTPS51200DRCRIC REG CONV DDR 1OUT 10VSON302524 - ImmediateView Details
IC REG CONV DDR 1OUT 10VSONTPS51200QDRCRQ1IC REG CONV DDR 1OUT 10VSON6379 - ImmediateView Details
IC REG CONV DDR 1OUT 10SONTPS51206DSQTIC REG CONV DDR 1OUT 10SON2127 - ImmediateView Details
IC REG CONV DDR 1OUT 10VSONTPS51200DRCTIC REG CONV DDR 1OUT 10VSON23770 - ImmediateView Details
IC REG CONV DDR 1OUT 10VSONTPS51200DRCTG4IC REG CONV DDR 1OUT 10VSON5417 - ImmediateView Details
IC REG CONV DDR 1OUT 10VSONTPS51200MDRCTEPIC REG CONV DDR 1OUT 10VSON451 - Immediate
10001 - Factory Stock
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IC REG CONV DDR 1OUT 10VSONTPS51200DRCRG4IC REG CONV DDR 1OUT 10VSON12819 - ImmediateView Details

Evaluation Modules

ImageManufacturer Part NumberDescriptionRegulator TopologyBase Part NumberAvailable QuantityView Details
EVAL MODULE FOR TPS51206-745TPS51206EVM-745EVAL MODULE FOR TPS51206-745BuckTPS5121 - Immediate
10 - Factory Stock
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EVALUATION MODULE FOR TPS51200TPS51200EVMEVALUATION MODULE FOR TPS51200BuckTPS5129 - Immediate
37 - Factory Stock
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Published: 2017-05-12