Silicontent Technology SCT2433D

Description

The SCT2433D is 3.5A synchronous buck converters with wide input voltage, ranging from 3.8V to 40V, which integrates an 80mΩ high-side MOSFET and a 50mΩ low-side MOSFET. The SCT2433D, adopting the peak current mode control, supports Force Pulse Width Modulation (FPWM) Mode to achieve the small output ripple at light load condition.The SCT2433D features internal soft start with 570kHz switching frequency. The converter allows power conversion from high input voltage to low output voltage with a minimum 100ns on-time of high-side MOSFET. It also supports Low Drop-Out LDO operation at low voltage difference from input to output condition.The SCT2433D is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2433D features Frequency Spread Spectrum FSS with ±6% jittering span of the switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI.The SCT2433D offers cycle-by-cycle current limit and hiccup over current protection, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin thermally enhanced SOP-8 package.

Features

• Wide Input Range: 3.8V-40V
• Up to 3.5A Continuous Output Current
• 0.8V ±1% Feedback Reference Voltage
• Integrated 80mΩ High-Side and 50mΩ Low-Side Power MOSFETs
• Force Pulse Width Modulation (FPWM) Mode
• Fixed Frequency 570kHz
• 100ns Minimum On-time
• 2ms Internal Soft-start Time Frequency Spread Spectrum FSS Modulation for EMI Reduction
• Precision Enable Threshold for Programmable UVLO Threshold and Hysteresis
• Low Dropout Mode Operation
• Derivable Inverting Voltage Regulator
• Over-voltage and Over Temperature Protection
• Available in an ESOP-8 Package

Typical applications

• Cordless Home, LCD Display
• Industrial and Medical Distributed Power Supplies, USB Type-C Power Delivery, USB Charging
• Battery Pack Powered System
• Aero Modeling
• Automotive System
• Optical Communication and Networking System

More information

• Datasheet