SCT2A25STER

The SCT2A25 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 SCT2A25 integrates an 500mΩ highside MOSFET and has 4A peak output current limit to support high peak current application in GPS tracker with 4G Module. The SCT2A25, adopting the constant-on time (COT) mode control with integrated loop compensation greatly simplifies the converter off-chip configuration. The SCT2A25 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 SCT2A25 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 SOP-8 package.

Applications

• GPS Tracker
• E-bike, Scooter
• Moto Drives, Drones
• 48V Industry Power Bus System

Key features

• Wide Input Range: 5.5V - 100V
• Maximum Output Voltage: 30V
• 2A Continuous Output Current 4A Peak Current Limit
• Integrated 500mΩ High-Side Power MOSFET
• 135uA Quiescent Current
• 1.2V ±1% Feedback Reference Voltage
• 4ms Internal Soft-start Time
• Fixed Switching Frequency at 300KHz
• 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 - 8 Package
• Pulse Frequency Modulation (PFM) mode at light load with typical 140uA low quiescent current