LMZ14203TZX-ADJ

• 18W maximum total output power
• Up to 3A output current
• Input voltage range 6V to 42V
• The output voltage range is 0.8V to 6V
• Efficiency up to 90%

Key features:

• Integrated shielded inductor
• Simple PCB layout
• Flexible start-up sequencing uses external soft start and precision, enabling
• Fault protection against inrush current and input UVLO, output short circuit, etc
• - Junction temperature range from 40°C to 125°C
• Single exposed pad and standard lead wires for easy installation and fabrication
• Powered fast transient response for FPGAs and ASICs
• Low output voltage ripple
• Pin-to-pin compatible series:

• LMZ14203/2/1 (42V Max 3A, 2A, 1A)

• LMZ12003/2/1 (20V max 3A, 2A, 1A)
• Fully enable WEBENCH ® power design

Performance benefits

• Operates at high ambient temperatures without thermal derating
• High efficiency and reduced heat generated by the system
• Low electromagnetic radiation (EMI) and meets EN55022 Class B standards
• The EMI test standard for pass 10V/M radiated immunity EN61000 4-3

illustrate

The LMZ14203 SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC solution capable of driving loads up to 3A with excellent power conversion efficiency, line and load regulation, and output accuracy. LMZ14203 is an innovative solution that enhances thermal properties and allows for manual or machine welding.

LMZ14203 can accept input voltage rails between 6V and 42V and provide adjustable and highly accurate output voltages as low as 0.8V. LMZ14203 only requires three external resistors and four external capacitors to complete the power solution. LMZ14203 is a safe, reliable, and powerful design with the following protection features: thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, output current limiting, and allows entry into pre-biased output start-up. A single resistor regulates switching frequencies up to 1 MHz.

apply

• Conversion from the point of load of the 12V and 24V input rails
• Time-critical items
• Space-constrained/high thermal requirements applications
• Applications of Negative Output Voltages (see AN - 2027)