New Industry Products

4.5V to 40V Input, 1A & 6A Output, DC-DC Buck Converter ICs

December 30, 2019 by Paul Shepard

Mornsun has released its latest dc-dc buck converter ICs, the SCM13xxA series, which include SCM1301ATA (1A output) and SCM1316AFA (6A output). A typical application schematic for the SCM1316A is illustrated above.

These two step-down buck ICs can meet multiple application requirements with high reliability and cost-effectiveness. Applications are expected to include intelligent instruments, car charger, rechargeable portable devices and industrial distributed power applications.

The SCM1301ATA is an asynchronous rectified dc-dc buck converter IC with output current up to 1A and the following features:

  • The input voltage range is from 4.5V to 40V, which is suitable for various applications of industrial control or automotive industry.
  • Ultra-low shutdown current as low as 1.6μA to prolong the battery life.
  • The SCM1301A operates at 0.7MHz fixed frequency with small external components to being able to achieve low output ripple voltage.
  • Multiple protections improve system reliability, such as over-current, short-circuit and over-thermal protection.
  • Integrated soft-start and compensation circuit reduces layout area and system cost by reducing external devices.

The SCM1316AFA is a synchronous rectified dc-dc converter buck IC with frequency-jittering and average circuit mode control function and it offers the following features:

  • The SCM1316AFA has dual-channel CC / CV mode, which can provide continuous current up to 6A, and has excellent linearity and load adjustment capabilities.
  • The input voltage range is from 7V to 38V and an adjustable output voltage is from 1V to 25V.
  • The SCM1316AFA features over-current, short-circuit and over-thermal protection circuits to improve system reliability.
  • Integrated soft-start and compensation circuit reduces layout area and system cost by reducing external devices, and the internal soft-start avoids input inrush current during startup.