TI LMZ10503EXTTZE/NOPB

The LMZ10503EXT power module is a complete, easy-to-use DC/DC solution capable of driving loads up to 3A, featuring excellent power conversion efficiency, output voltage accuracy, and line and load regulation. The LMZ10503EXT utilizes an innovative package that enhances thermal performance and supports both manual and machine soldering. The LMZ10503EXT accepts an input voltage rail ranging from 2.95V to 5.5V and provides a highly accurate adjustable output voltage as low as 0.8V. The 1MHz fixed-frequency PWM switching offers predictable EMI characteristics. Two external compensation components are tuned to set the fastest response time and allow the selection of either ceramic or electrolytic output capacitors. An externally programmable soft-start capacitor enables controlled startup. The LMZ10503EXT is a robust and reliable solution featuring: lossless cycle-by-cycle peak current limiting for protection against overcurrent or short-circuit faults, thermal shutdown, input undervoltage lockout, and pre-bias startup. The LMZ10503EXT also provides full support for WEBENCH and Power Designer tools.

• Integrated shielded inductor
• Flexible start-up sequencing via external soft-start, tracking, and precision enable
• Protection against inrush current, input UVLO, and output short circuit faults
• Single exposed pad and standard pinout for easy assembly and manufacturing; pin-to-pin compatible with: LMZ10504EXT (4A/20W max), LMZ10505EXT (5A/25W max)
• Fast transient response for FPGA and ASIC power supply
• Maximum total output power up to 15W
• Output current up to 3A
• Input voltage range: 2.95V to 5.5V
• Output voltage range: 0.8V to 5V
• Feedback voltage accuracy of ±1.63% over full temperature range
• Operation in high-temperature environments
• Low radiated emission EMI tested, compliant with EN55022 Class B
• Passes 10V/m radiated immunity EMI standard EN61000 4-3
• Passes vibration standard MIL-STD-883 Method 2007.2 Condition A / JESD22-B103B Condition 1
• Passes mechanical shock standard MIL-STD-883 Method 2002.3 Condition B / JESD22-B110 Condition B
• Create custom designs using LMZ10503 with WEBENCH Power Designer

• 3.3V and 5V rail-to-point-of-load conversion
• Space-constrained applications
• Noise-sensitive applications (e.g., transceivers, medical devices)