Texas Instruments Debuts LM5122Q, TPS43060, TPS43061 Boost Controllers

Texas Instruments (TI) LM5122Q, TPS43060 and TPS43061 boost controllers

Texas Instruments announced their LM5122Q, TPS43060 and TPS43061 boost controllers. The LM5122Q is a multi-phase boost controller with the industry’s widest input and output voltage range. The TPS43060 and TPS43061 are low quiescent-current boost controllers with 1-MHz operation and a small 16-pin QFN package (3mm by 3mm by .75mm). The TPS43060 and TPS43061 are available in volume now. The TPS43060 and TPS43061 are priced at $1.40 in 1,000-unit quantities. The LM5122Q will be available in the second quarter in a 20-pin TSSOP package (6.5mm by 4.4mm by .9mm) The LM5122Q is priced at $2.10 in 1,000-unit quantities.

The TI LM5122Q is an AEC-Q100-qualified synchronous boost controller with a 3-V to 65-V input and up to 100-V output voltage range. The controller can be configured easily for interleaved multi-phase operation, which is required for high power applications like start-stop voltage stabilizers and high power audio amplifiers. A powerful 3-A gate drive circuit supports voltages up to 16-V, enabling flexibility to tune the step-up DC/DC for efficiency and size.

The TI TPS43060 and TPS43061 are low quiescent-current synchronous boost controllers with an input voltage range from 4.5 V to 38 V and an output voltage range of up to 60 V. The TPS43060 provides a 7.5-V gate drive, which drives a broad range of low-cost MOSFETs. The TPS43061 provides a 5.5-V gate drive, optimized for low Qg MOSFETs, such as TI’s CSD86330Q3D synchronous buck NexFET Power Block, which saves up to 50mm2 of board area.

TI LM5122Q Features

  • Available in AEC-Q100 Grade 1 (LM5122-Q1)
  • Maximum Input Voltage : 65 V
  • Min Input Voltage : 3.0 V (4.5 V for startup)
  • Output Voltage up to 100 V
  • Bypass (VOUT = VIN) Operation
  • Free-Run/Synchronizable Switching to 1 MHz
  • Peak Current Mode Control
  • Robust 3 A Integrated Gate Drivers
  • Adaptive Dead-Time Control
  • Optional Diode Emulation Mode
  • Programmable Cycle-by-Cycle Current Limit
  • Hiccup Mode Overload Protection
  • Programmable Line UVLO
  • Programmable Soft-Start
  • Thermal Shutdown Protection
  • Low Shutdown Quiescent Current: 9 µA
  • Programmable Slope Compensation
  • Programmable Skip Cycle Mode Reduces Standby Power
  • Allows External VCC Supply
  • Inductor DCR Current Sensing Capability
  • Multiphase Capability
  • Thermally Enhanced 20-Pin PowerPAD

TI TPS43060 and TPS43061

  • 58 V Maximum Output Voltage
  • 4.5 V to 38 V (40 V Abs Max) VIN Range
  • TPS43060: 7.5 V Gate Drive Optimized for Standard Threshold MOSFETs
  • TPS43061: 5.5 V Gate Drive Optimized for Low Qg NexFETs
  • Current-Mode Control with Internal Slope Compensation
  • Adjustable Frequency from 50kHz to 1MHz
  • Synchronization Capability to External Clock
  • Adjustable Soft-Start Time
  • Inductor DCR or Resistor Current Sensing
  • Output Voltage Power-Good Indicator
  • ±0.8% Feedback Reference Voltage
  • 5 µA Shutdown Supply Current
  • 600 µA Operating Quiescent Current
  • Integrated Bootstrap Diode (TPS43061)
  • Cycle-by-Cycle Current Limit and Thermal Shutdown
  • Adjustable UVLO and Output Overvoltage Protection
  • Small 16-Pin QFN (3mm x 3mm) Package with PowerPAD
  • -40°C to 150°C Operating TJ Range

More info: LM5122Q | TPS43060 and TPS43061 (pdf)

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