SCT2A25.pdf
No.10340
? Wide Input Range: 5.5V-100V
? Maximum Output Voltage: 30V
? 2A Continuous Output Current
? 4A Peak Current Limit
? Integrated 500mΩ High-Side Power MOSFETs
? 140uA Quiescent Current
? 1.2V ±2% 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
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 and hiccup over current protection, 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.
