JFET

Variable Output Single Cell 80W Heater Element Power Stage Buck/Boost Reference Design

PMP20410

Overview

The PMP20410 is a synchronous 4-switch buck/boost converter reference design using the LM5175 controller for battery charger applications. Output voltages from 1V to 10V can be selected over a current range of 13A to 28A by using a trim resistor on the FB pin with a bias voltage of 0.2V to 3.1V. This reference design also uses the nonsynchronous boost regulator LMR62014 to provide bias voltage for the LM5175 operating in 2.7V input voltage mode. The current mode controller has built-in LM5175 pulse-by-pulse current limiting function. This board includes enable, sync, and power-good functions. This reference design supports resistive heating elements with resistances ranging from 0.1Ω to 0.5Ω, allowing 80W of power to be supplied.

characteristic

● Provides 1V to 10V/13A to 28A output with 2.7V to 4.3V input voltage
● LM5175 boost/buck controller achieves over 90% efficiency under all operating conditions
● Compact size and slim appearance, suitable for electronic cigarettes
● Solution size: 43mm x 30mm
● Peak efficiency reaches 98%

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Design Files

Documentation

Variable Outputs Single Cell Battery 80W Heater Element Reference Design

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Update:2025-06-25 07:45:01

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