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6-W, 3.3/5-V Input, Wide Adjust Output Positive-to-Negative Converter


Package | PIN: EUV | 5
Temp: I (-40 to 85)
Carrier: Partial Tray
Qty Price
1-9 $18.62
10-24 $17.31
25-99 $16.71
100-249 $14.59
250-499 $13.89
500-749 $12.78
750-999 $11.47
1000+ $11.44


  • Up to 6-W Output Power
  • Wide-Input Voltage
    (2.9 V to 7 V)
  • Wide-Output Voltage Adjust (-15 V to -3.3 V)
  • High Efficiency (Up to 84%)
  • On/Off Inhibit
  • Output Current Limit
  • Undervoltage Lockout
  • Overtemperature Shutdown
  • Operating Temperature: -40°C to 85°C
  • Surface-Mount Package Available
    • General-Purpose, Industrial Controls, HVAC Systems, Test and Measurement, Medical Instrumentation, AC/DC Adaptors, Vehicles, Marine, and Avionics

Texas Instruments  PTN04050AAS

The PTN04050A is an adjustable output, positive-to-negative, integrated switching regulator. In new designs, it should be considered in place of the PT5020 series of positive-to-negative integrated switching regulator products. The PTN04050A is smaller and lighter than its predecessor, with improved electrical performance characteristics, while operating over a wider input voltage range, with an adjustable output voltage. The caseless, double-sided package also exhibits improved thermal characteristics, and is compatible with TI's roadmap for RoHS and lead-free compliance.

Operating from a wide-input voltage range of 2.9 V to 7 V, the PTN04050A provides high-efficient, positive-to-negative voltage conversion for loads of up to 6 W. The output voltage is set using a single external resistor, and may be set to any value within the range, -15 V to -3.3 V.

The PTN04050A features include on/off inhibit, undervoltage lockout, over-current protection, and is suited for a wide variety of general-purpose applications that operate off 3.3-V or 5-V input.