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5.5V, 3A Power Module in Leaded Surface Mount TO Package

Qty Price
1-9 $8.31
10-24 $7.48
25-99 $6.98
100-249 $6.26
250-499 $5.84
500-749 $5.09
750-999 $4.40
1000+ $4.31


  • 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
    • LMZ10504 (4A / 20 W Maximum)
    • LMZ10505 (5 A / 25 WMaximum)
  • Electrical Specifications
    • 15-W Maximum Total Output Power
    • Up to 3-AOutput Current
    • Input Voltage Range 2.95 V to 5.5 V
    • OutputVoltage Range 0.8 V to 5 V
    • ±1.63% Feedback Voltage Accuracy OverTemperature
  • Performance Benefits
    • Operates at High Ambient Temperatures
    • HighEfficiency up to 96% Reduces System Heat Generation
    • Low Radiated Emissions(EMI) Tested to EN55022 Class B Standard (EN 55022:2006, +A1:2007, FCC Part 15 Subpart B: 2007. SeeTable 9 and layout information for more regarding device under test.)
    • FastTransient Response for Powering FPGAs and ASICs
  • Create a Custom Design Using the LMZ10503 With the WEBENCH® Power Designer

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Texas Instruments  LMZ10503TZ-ADJ/NOPB

The LMZ10503 SIMPLE SWITCHER power module is a complete, easy-to-use DC-DC solutioncapable of driving up to a 3-A load with exceptional power conversion efficiency, output voltageaccuracy, line and load regulation. The LMZ10503 is available in an innovative package thatenhances thermal performance and allows for hand or machine soldering.

The LMZ10503 can accept an input voltage rail between 2.95 V and 5.5 V and can deliver anadjustable and highly accurate output voltage as low as 0.8 V. One megahertz 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 and/orelectrolytic output capacitors. Externally programmable soft-start capacitor facilitates controlledstartup. The LMZ10503 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.