Switching Power Supply Switching Power Supply

DC-DC Buck Converter

DC-DC Buck Converter
SCT2333FTTAR Pre-release
3.8V-30V Vin, 3A, High Efficiency Synchronous Step-down DCDC Converter
SCT2333FTTAR
  • Product Introduction
  • Technical data
  • Parameter comparison

Product Features

FEATURES:
 
• Wide Input Range: 3.8V-30V
• Up to 3A Continuous Output Current
• 0.8V Feedback Reference Voltage
• Integrated 90mΩ High-Side MOSFET and 36mΩ Low-Side MOSFET
• Shutdown Current: 1uA
• Peak current mode control
• Forced Continuous Conduction Mode (FCCM)
• 80ns Minimum On-time
• Programmable Soft-start Time
• Random Spread Spectrum option for reduced EMI
• Adjustable Frequency: 200kHz~2.2MHz
• Support start-up with pre-biased output
• Precision Enable Threshold for Programmable Input Voltage Under-Voltage Lock Out Protection (UVLO) Threshold and Hysteresis
• Low Dropout Mode Operation (Maximum 98% duty cycle)
• Hiccup Mode for Over current Protection
• Over-voltage and Over-Temperature Protection
• Available in an FCSOT583 Package
 
DESCRIPTION:
 
The SCT2333F is a 3A synchronous buck converter with wide input voltage, ranging from 3.8V to 30V, which integrates a 90mΩ high-side MOSFET and a 36 mΩ low-side MOSFET. The SCT2333F, adopting the peak current mode control, supports the Forced Continuous Conduction Mode (FCCM) to achieve small output ripple at light load mode. The switching frequency can be programmed from 200kHz to 2.2MHz through external resistors to optimizes either the power efficiency or the external components’ sizes. The SCT2333F allows power conversion from high input voltage to low output voltage with a minimum 80ns on-time of high-side MOSFET. The SCT2333F is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2333F features Random Spread Spectrum ±6% jittering span of switching frequency to reduce the conducted EMI. The device offers programmable soft start to prevent inrush current during the startup of output voltage
ramping. The SCT2333F supports monotonic start with pre-biased output. The SCT2333F features internal loop compensation, which can provide stable output voltage and fast loop response, while reducing off chip configuration. The SCT2333F provides cycle-by-cycle current limit, hiccup mode for over current protection, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an FCSOT583 package.
 
APPLICATIONS:
 
• Building automation, appliances, industrial PC
• Multifunction printers, enterprise projectors
• Portable electronics, connected peripherals
• Smart speakers, monitors
• Distributed power systems with 5V, 12V, 19V, and 24V input

Package information

SCT2333FTTAR
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Technical data

Title Time Download
SCT2333F Datasheet Rev 1.1 2026-10-19 Download

Parameter comparison

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30V DC-DC Buck Converter DC-DC Buck Converter
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30V DC-DC Buck Converter DC-DC Buck Converter
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