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DC-DC Buck Converter
DC-DC Buck Converter
SCT2A26QSTER
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5.5V-100V Vin High Efficiency Asynchronous Step-down DCDC Converter
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- Product Introduction
- Technical data
- Parameter comparison
Product Features
FEATURES：
• AEC-Q100 Qualified
- Device Temperature Grade 1: -40°C to 125°C
Ambient Operating Temperature Range
• Wide Input Range: 5.5V-100V
• Maximum Output Voltage: 30V
• 2A Continuous Output Current
• Integrated 500mΩ High-Side Power MOSFET
• 140uA Quiescent Current
• 1.2V ±1% Feedback Reference Voltage
• 4ms Internal Soft-start Time
• Fixed Switching Frequency at 380kHz
• COT Control Mode with Integrated Loop Compensation
• Precision Enable Threshold for Programmable Input Voltage Under-Voltage Lock Out Protection(UVLO) Threshold and Hysteresis
• Cycle-by-Cycle Current Limiting
• Over-Voltage Protection
• Over-Temperature Protection
• Available in an ESOP-8L Package
DESCRIPTION：
The SCT2A26Q is an asynchronous buck converter with wide input voltage ranging from 5.5V to 100V which accommodates a variety of step-down
applications, making it ideal for automotive, industry, and lighting applications. The SCT2A26Q integrates an 500mΩ high-side MOSFET and the switching frequency is fixed at 380kHz.The SCT2A26Q, adopting the constant-on time (COT) mode control with integrated loop compensation
greatly simplifies the converter off-chip configuration. The SCT2A26Q features Pulse Frequency Modulation (PFM) mode at light load with typical 140uA low quiescent current, which enables the converter to achieve the high-power efficiency during light-load or no-load conditions. The SCT2A26Q offers cycle-by-cycle current limit, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin thermally enhanced ESOP-8L package.
applications, making it ideal for automotive, industry, and lighting applications. The SCT2A26Q integrates an 500mΩ high-side MOSFET and the switching frequency is fixed at 380kHz.The SCT2A26Q, adopting the constant-on time (COT) mode control with integrated loop compensation
greatly simplifies the converter off-chip configuration. The SCT2A26Q features Pulse Frequency Modulation (PFM) mode at light load with typical 140uA low quiescent current, which enables the converter to achieve the high-power efficiency during light-load or no-load conditions. The SCT2A26Q offers cycle-by-cycle current limit, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin thermally enhanced ESOP-8L package.
APPLICATIONS：
• Automotive 48V mild hybrid ECU bias supplies
• Automotive HVAC compressors and PTC heaters
Package information
Technical data
| Title | Time | Download |
|---|---|---|
| SCT2A26Q Datasheet Rev 1.0 | 2026-07-09 |
 Download
|
Parameter comparison
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