LMZ14203

• The total output power is up to 18W
• 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 inductors
• Simple PCB layout
• Flexible start-up sequence using external soft-start and precision enable
• Protection against inrush currents, such as input UVLO, output short-circuit faults
• - Junction temperature range of 40°C to 125°C
• Single-pin exposed pads and standard for easy installation and fabrication
• Fast transient response power supply 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

• Works in high temperature environments with no thermal derating
• Efficiently reduces the heat generated by the system
• Low electromagnetic radiation (EMI) meets EN55022 Class B standards
• Passed 10V/M radiation immunity EMI test standard EN61000 4-3

illustrate

The LMZ14203 SIMPLE SWITCHER power module is an easy-to-use step-down DC-DC solution for driving with excellent power conversion efficiency, line and load regulation, and an output accuracy of 3A load capacity. The LMZ14203 is an innovative package that improves thermal performance and welding robots or permits.

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

apply

• Transition point for load, 12V and 24V input rails
• Time-critical items
• Space-constrained/high thermal conductivity applications
• Negative Output Voltage Applications (see AN - 2027)