TPS54680-EP  Enhanced Product 3V to 6V Input Tracking Synchronous Buck Pwm Switcher  |

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 Enhanced Product 3V to 6V Input Tracking Synchronous Buck Pwm Switcher 



As a member of the SWIFT family of dc/dc regulators, the TPS54680 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Using the TRACKIN pin with other regulators, simultaneous power up and down are easily implemented. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally or externally set slow-start circuit to limit inrush currents; and a power good output useful for processor/logic reset.

The TPS54680 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD package, which eliminates bulky heatsinks. 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.


  • Power Up/Down Tracking For Sequencing
  • 30-mΩ, 12-A Peak MOSFET Switches for High Efficiency at 6-A
    Continuous Output Source or Sink Current
  • Wide PWM Frequency: Fixed 350 kHz or Adjustable 280 kHz to 700 kHz
  • Power Good and Enable
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Component Count


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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS54680-EP Order now 3     6     0.9     3.3     6     1     280     700     11     Enable
Power Good
Synchronous Rectification
Voltage Mode     90     -40 to 125
-55 to 125    
HiRel Enhanced Product     HTSSOP | 28     Converter     28HTSSOP: 43 mm2: 4.4 x 9.7 (HTSSOP | 28)