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3A Power Module with 5.5V Maximum Input Voltage for Military and Rugged Applications


Package | PIN: NDW | 7
Temp: M (-55 to 125)
Carrier: Partial Tube
Qty Price
1-9 $22.79
10-24 $21.19
25-99 $20.45
100-249 $17.86
250-499 $17.00
500-749 $15.65
750-999 $14.05
1000+ $14.00


  • Integrated Shielded Inductor
  • Flexible Start-up Sequencing Using External Soft-Start, Tracking, and Precision Enable
  • Protection Against In-Rush Currents and Faults Such as Input UVLO and Output Short-Circuit
  • Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
  • Pin-to-Pin Compatible With
    • LMZ10504EXT (4-A/20-WMaximum)
    • LMZ10505EXT (5-A/25-WMaximum)
  • Fast Transient Response for Powering FPGAs and ASICs
  • Electrical Specifications
    • 15-W Maximum Total Output Power
    • Up to 3-A OutputCurrent
    • Input Voltage Range 2.95 V to 5.5 V
    • Output VoltageRange 0.8 V to 5 V
    • ±1.63% Feedback Voltage Accuracy OverTemperature
  • Performance Benefits
    • Operates at High Ambient Temperatures
    • Low RadiatedEmissions (EMI) Tested to EN55022 Class B Standard
    • Passes 10-V/m RadiatedImmunity EMI Tested to Standard EN61000 4-3
    • Passes VibrationStandard
      • MIL-STD-883 Method 2007.2 Condition A
      • JESD22-B103B Condition 1
    • PassesDrop Standard
      • MIL-STD-883 Method 2002.3 Condition B
      • JESD22-B110 Condition B
    • Createa Custom Design Using the LMZ10503 With theWEBENCH® Power Designer

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Texas Instruments  LMZ10503EXTTZE/NOPB

The LMZ10503EXT SIMPLESWITCHER® power module is a complete, easy-to-use, DC-DC solution capable of driving upto a 3-A load with exceptional power conversion efficiency, output voltage accuracy, line and loadregulation. The LMZ10503EXT is available in an innovative package that enhances thermal performanceand allows for hand or machine soldering.

The LMZ10503EXT can accept an input voltage rail between 2.95 V and 5.5 V, and candeliver an adjustable and highly accurate output voltage as low as 0.8 V. 1-MHz fixed-frequency PWMswitching provides a predictable EMI characteristic. Two external compensation components can beadjusted to set the fastest response time, while allowing the option to use ceramic or electrolyticoutput capacitors. Externally programmable soft-start capacitor facilitates controlled start-up.The LMZ10503EXT is a reliable and robust solution with the following features: losslesscycle-by-cycle peak current limit to protect for over current or short-circuit fault, thermalshutdown, input undervoltage lockout, and prebiased start-up. The LMZ10503EXT is also fully-enabledfor WEBENCH® and Power Designertools.