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DC-DC Buck Converter
DC-DC Buck Converter
SCT2434AQFPAR
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3.6V-36V Vin, 3.5A, High Efficiency Synchronous Step-down DCDC Converter
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- Product Introduction
- Technical data
- Parameter comparison
Product Features
FEATURES：
- 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: 3.6V-36V
- Up to 3.5A Continuous Output Current
- 1V ±1% Feedback Reference Voltage
- Integrated 60mΩ High-Side and 36mΩ Low-Side Power MOSFETs
- Pulse Skipping Mode(PSM) with 25uA Quiescent Current in Sleep Mode
- 60ns Minimum On-time
- 4ms Internal Soft-start Time
- 400kHz Switching Frequency
- Frequency Spread Spectrum (FSS) Modulation for EMI Reduction
- Precision Enable Threshold for adjustable Input Voltage Under-Voltage Lock Out Protection (UVLO) Threshold and Hysteresis
- Parallel input path to minimize switch node ringing
- Low Dropout Mode Operation
- Over-voltage and Over-Temperature Protection
- Available in 2mm*3mm QFN-12L Package
DESCRIPTION：
The SCT2434AQ is 3.5A synchronous buck converters with wide input voltage, ranging from 3.6V to 36V, which integrates a 60mΩ high-side MOSFET and a 36mΩ low-side MOSFET. The SCT2434AQ, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) with typical 25uA low quiescent current which assists the converter on achieving high efficiency at light load or standby condition.
The SCT2434AQ features an internal 4ms soft-start time to avoid large inrush current and output voltage overshoot during startup. The switching frequency is fixed 400kHz. The SCT2434AQ allows power conversion from high input voltage to low output voltage with a minimum 60ns on-time of high-side MOSFET.
The SCT2434AQ is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2434AQ features Frequency Spread Spectrum FSS with ±6% jittering span of the 400kHz switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI.
The SCT2434AQ 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 2mm*3mm QFN-12L package with wettable flanks.
The SCT2434AQ features an internal 4ms soft-start time to avoid large inrush current and output voltage overshoot during startup. The switching frequency is fixed 400kHz. The SCT2434AQ allows power conversion from high input voltage to low output voltage with a minimum 60ns on-time of high-side MOSFET.
The SCT2434AQ is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2434AQ features Frequency Spread Spectrum FSS with ±6% jittering span of the 400kHz switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI.
The SCT2434AQ 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 2mm*3mm QFN-12L package with wettable flanks.
APPLICATIONS：
- Automotive infotainment and ADAS
USB Type-C Power Delivery, USB Charging
Industrial and Medical Distributed Power Supplies
Package information
Technical data
| Title | Time | Download |
|---|---|---|
| SCT2434AQFPAR-可靠性报告03122A R0.0 | 2024-11-05 |
 Login Download
|
| SCT2434AQ Datasheet Rev. 1.6 | 2026-02-05 |
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|
Parameter comparison
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