LMZ10503

• The total output power is up to 15W
• Up to 3A output current
• The input voltage range is 2.95V to 5.5V
• The output voltage range is 0.8V to 5V
• ± 1.63% temperature feedback voltage accuracy
• Up to 96% efficiency

Key features

• Integrated shielded inductor
• Flexible boot sequences are made using external soft-start, tracking, and precision
• Protection of inrush current, etc. input UVLO, output short-circuit fault
• -55°C to +125°C junction temperature operating range
• Single-lead exposed pad and standard for easy installation and manufacturing
• Pin to pin compatible

• LMZ10504EXT (4A/20W Max)

• LMZ10505EXT (5A/25W Max)
• FULLY ENABLE WEBENCH ® AND POWER SUPPLY DESIGN
• The low output voltage ripple of 10 mV allows power supply noise sensitive transceivers and signal ICs
• Fast transient response powers FPGAs and ASICs

Performance benefits

• Operates at high ambient temperatures
• Low electromagnetic emissions (EMI) comply with EN55022 Class B standards
• Passed the 10V/M radiated EMI test standard EN61000 4-3
• Pass vibration standards

• MIL - STD-883 Method 2007.2 Condition A

• JESD22 - B103B condition 1
• By lowering the bar

• MIL - STD-883 Method 2002.3 Condition B

• JESD22 - B110 Condition B

illustrate

The LMZ10503EXT SIMPLE SWITCHER ® POWER MODULE IS A COMPLETE, EASY-TO-USE DC-TO-DC SOLUTION FOR COAXING UP TO A LOAD CAPABILITY OF 3A WITH EXCELLENT POWER CONVERSION EFFICIENCY, OUTPUT VOLTAGE ACCURACY, LINE AND LOAD REGULATION. The LMZ10503EXT is an innovative package that improves thermal performance and is allowed by welding manipulators.

The LMZ10503EXT accepts input voltage rails between 2.95V and 5.5V and provides adjustable output voltages down to 0.8V and high accuracy. One MHz fixed frequency PWM switch provides a predictable EMI characteristic. Two external compensation elements can be adjusted to set for the fastest response time while allowing the choice of ceramic and/or electrolytic output capacitors. An externally programmable soft-start capacitor facilitates controlled start-up. The LMZ10503EXT is a reliable and robust solution with lossless cycle-by-cycle peak current limit protection against overcurrent or short-circuit faults, thermal shutdown, input undervoltage lockout, and prebias startup.

apply

• Conversion from 3.3V and 5V rail point loads
• Space-constrained apps
• Extreme temperatures / environments with no air movement
• Noise (e.g. transceivers, medical) sensitive applications