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DC-DC Buck Converter
DC-DC Buck Converter
SCT2651QDRBR
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4.5V-60V Vin, 5A, High Efficiency Step-down DCDC Converter withProgrammable Frequency
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- Product Introduction
- Technical data
- Parameter comparison
Product Features
FEATURES：
- Qualified for Automotive Applications
- AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: -40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B - Wide Input Range: 4.5V-60V
- Up to 5A Continuous Output Current
- 0.8V ±1% Feedback Reference Voltage
- Integrated 80mΩ High-Side MOSFET
- Low Quiescent Current: 175uA
- Pulse Skipping Mode (PSM) in light load
- 130ns Minimum On-time
- Adjustable Soft-start Time
- Adjustable Frequency 100KHz to 800kHz
- External Clock Synchronization
- Precision Enable Threshold for ProgrammableInput Voltage Under-Voltage Lock Out Protection (UVLO) Threshold and Hysteresis
- Low Dropout Mode Operation
- Derivable Inverting Voltage Regulator
- Over-voltage and Over-Temperature Protection
- Available in DFN-10L Package
DESCRIPTION：
The SCT2651Q is 5A buck converter with wide input voltage, ranging from 4.5V to 60V, which integrates an 80mΩ high-side MOSFET. The SCT2651Q, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) which assists the converter on achieving high efficiency at light load or standby condition.
The SCT2651Q features adjustable switching frequency from 100kHz to 800KHz with an external resistor, which provides the flexibility to optimize either efficiency or external component size. The converter supports external clock synchronization with a frequency band from 100kHz to 800KHz. The SCT2651Q allows power conversion from high input voltage to low output voltage with a minimum 130ns on time of high-side MOSFET.
The device offers adjustable soft start to prevent inrush current during the startup of output voltage ramping. The SCT2651Q features external loop compensation to provide the flexibility to optimize either loop stability or loop response.
The SCT2651Q provides cycle-by-cycle current limit, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in 4mm*4mm 10-pin DFN package.
The SCT2651Q features adjustable switching frequency from 100kHz to 800KHz with an external resistor, which provides the flexibility to optimize either efficiency or external component size. The converter supports external clock synchronization with a frequency band from 100kHz to 800KHz. The SCT2651Q allows power conversion from high input voltage to low output voltage with a minimum 130ns on time of high-side MOSFET.
The device offers adjustable soft start to prevent inrush current during the startup of output voltage ramping. The SCT2651Q features external loop compensation to provide the flexibility to optimize either loop stability or loop response.
The SCT2651Q provides cycle-by-cycle current limit, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in 4mm*4mm 10-pin DFN package.
APPLICATIONS：
- 12-V, 24-V, 48-V Industry and Telecom Power System
- Industrial Automation and Motor Control
- Vehicle Accessories
Package information
Technical data
| Title | Time | Download |
|---|---|---|
| SCT2651Q Datasheet Rev 1.2 | 2026-10-19 |
 Download
|
Parameter comparison
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60V DC-DC Buck Converter DC-DC Buck Converter
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