PTH12040 Series 275 Watt (50 Amp) Non-Isolated DC-DC Converters


The PTH12040 series non-isolated DC-DC converter complies with the Point-of-Load Alliance (POLA) standard. It offers some of the most advanced POL functions in the industry, including Auto-Track™ sequencing for controlled power-up/power-down of complex semiconductor devices such as DSPs, FPGAs and ASICs, and voltage margining. Standard features include pre-bias startup, programmable input undervoltage lockout, differential remote sense, remote On/Off and auto resetting short-circuit protection.

PTH12040 series converters have an input voltage range of 8 to 14Vdc and an output voltage that can be trimmed from 0.8 to 5.5 Vdc to meet a wide variety of semiconductor power needs. Rated at 275 watts, the converters offer up to 93% efficiency and can deliver up to 50 amps. Available in through-hole horizontal mount and surface-mount versions, they have a small 1 x 2 inch (26.5 x 52 mm) footprint and an installed height of just 0.35 inch (9 mm).

Auto-Track™ is a trademark of Texas Instruments

PTH12040 Datasheet(s)

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  • Total Max Power: 275 W
  • Total Max Current: 50 A
  • Input Voltage: 8 V to 14 V
  • Output Voltage: 0.8 V to 5.5 V
  • Outputs: Single
  • Size (L x W x H): 2.050" x 1.050" x 0.360"
  • Warranty: 2 years
  • Operating Temperature: -40°C to +85°C

Electrical Specifications

  • Input voltage range: 8 - 14 Vdc
  • Input standby current: 35 mA typ.
  • Voltage adjustability: 0.8 - 5.5 Vdc
  • Ripple and noise: 20 MHz bandwidth; 15 mV typ.
  • Efficiency: 96% max
  • 50 A output current
  • 12 V input voltage (8 Vdc to 14 Vdc)
  • Wide-output voltage adjust (0.8 Vdc to 5.5 Vdc)
  • Auto-track™ sequencing
  • Margin up/down controls
  • Efficiencies up 96%
  • Output ON/OFF inhibit
  • Differential remote sense
  • Programmable Under-Voltage Lockout (UVLO)
  • Point-of-Load-Alliance (POLA) compatible
  • Available RoHS compliant