4.5V~40V Input, 1A / 6A Output, DC / DC Buck IC - SCM13xxA Series

Product Introduction

MORNSUN has just released latest IC, SCM13xxA series, which include SCM1301ATA (1A output) and SCM1316AFA (6A output), these two step-down buck ICs can meet multiple application requirements with high reliability and cost-effectiveness.

SCM1301ATA is an asynchronous rectified DC / DC buck IC with output current up to 1A.

 The wide input voltage range is from 4.5V ~ 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.

SCM1316AFA is a synchronous rectified DC / DC buck IC with frequency-jittering and average circuit mode control function.

 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.

Product application

It can be widely used in intelligent instrument, car charger, rechargeable portable devices and Industrial distributed power applications.

Product Features

 Input range 4.5 V to 40 V with 45 V transients
 0.7 MHz switching frequency
 Output current up to 1 A
 Thin TSOT23-6L package(2.9mm × 1.6mm × 0.8mm)
 Efficient light load power saving mode
 Internal compensation and internal soft start
 Over-current protection and over-thermal protection
 Recommended operated junction temperature:-40 to +125℃
 Wide input range : 7V to 38V
 Programmable frequency(130KHz~300KHz) 
 6A continuous output current
 Thermally enhanced QFN5*5 package
 Up to 95% efficiency @ 24V input
 Dual-channel CC/CV mode control
 Built-in adjustable line compensation
 1V~25V adjustable output voltages,±1.5% output voltage accuracy,± 5% current limit accuracy
 Integrated 14mΩ high and low side MOSFET
 Burst mode operation at light load
 Internal loop compensation and soft start
 Over-current, short-circuit and over-thermal protection
 Recommended operated junction temperature:-40 to +125℃

Please refer to the technical manual for specific product parameters:

Series Power(W) Package Topology Control Mode Fsw(khz) OTP OCP SCP UVLP OLP Design Reference Demo-board Sample
SCM1301A - TSOT23-6L - Current mode - Built-in Built-in Built-in - - - -
SCM1316A - QFN5*5-20 - Current mode 300 - - Built-in - - SCM1316A SCM1316A


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