SCT2464Q 3.5V-36V Vin, 6A, High Efficiency Synchronous Step-down DCDC Converter Preliminary Specification
●The SCT2464Q is 6A synchronous buck converters with wide input voltage, ranging from 3.5V to 36V, which integrates a 30mΩ high-side MOSFET and a 18mΩ low-side MOSFET. The SCT2464Q, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) with typical 13uA (VBIAS=5V) low quiescent current which assists the converter on achieving high efficiency at light load or standby condition.
●The SCT2464Q features adjustable switching frequency from 200 kHz to 1.8 MHz 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 200kHz to 1.8MHz. The SCT2464Q allows power conversion from high input voltage to low output voltage with a minimum 60ns on-time of high-side MOSFET.
●The SCT2464Q is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2464Q features Frequency Spread Spectrum FSS with ±6% jittering span of the 500kHz switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI.
●The SCT2464Q 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 3.5mm*4mm QFN-14L package.
■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: 3.5V-36V
●Up to 6A Continuous Output Current
●1V ±1.5% Feedback Reference Voltage
●Integrated 30mΩ High-Side and 18mΩ Low-Side Power MOSFETs
●13uA Quiescent Current with VBIAS Connected to an auxiliary power supply to 5V
●60ns Minimum On-time
●4ms Internal Soft-start Time
●Adjustable Frequency 200KHz to 1.8MHz
●External Clock Synchronization
●Frequency Spread Spectrum (FSS) Modulation for EMI Reduction
●External bias option for improved efficiency
●Parallel input path to minimize switch node ringing
●Low Dropout Mode Operation
●Over-voltage and Over-Temperature Protection
●Available in 3.5mm*4mm QFN-14L Package
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High Efficiency Synchronous Step-down DCDC Converter 、 synchronous buck converters 、 Electromagnetic Interference friendly buck converter 、 EMI friendly buck converter |
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[ Automotive infotainment ][ ADAS ][ USB Type-C Power Delivery ][ USB Charging ][ Industrial Distributed Power Supplies ][ Medical Distributed Power Supplies ] |
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Datasheet |
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Please see the document for details |
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QFN-14L;QFNFC4×3.5-14L;QFN |
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English Chinese Chinese and English Japanese |
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2023/8/11 |
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Rev.0.82 |
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2.8 MB |
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