SGM61280.pdf? 8A Output Current
? Fixed Output Voltages
? Wide Input Voltage Range:
4.5V to 23V Input Range for SGM61280-3.3
5.1V to 23V Input Range for SGM61280-5.1
? Constant On-Time (COT) Control
? Low RDSON MOSFET Switches (22mΩ/7mΩ)
? Fast Transient Response, Accurate Regulation
? Supports All Low ESR MLCC Output Capacitors
? Fixed Switching Frequency
? LDO Output Voltage
? Internal Soft-Start
? Integrated Output Discharge Resistance
? Cycle-by-Cycle Valley Over-Current Protection
? Input Under-Voltage Lockout
? Thermal Shutdown Protection
? Output Over/Under-Voltage Protection
? Audio Avoid Mode (AAM) to Avoid PFM Acoustic Noise
? Available in a Green UTQFN-3×3-12AL Package
? 4.5V to 23V (RT6258B) and 5.1V to 23V (RT6258C)
Input Voltage Range 8A Output Current
? ACOTTM Mode Performs Fast Transient Response
? ACOTTM Architecture to Enable All MLCC Output
Capacitor Usage
? Fixed 750kHz (RT6258C) and 500kHz (RT6258B)
Switching Frequency
? High Efficient Internal Power MOSFET Switch-
20mΩ (High-Side) and 10mΩ (Low-Side)
? Fixed 3.3V (RT6258B) and 5V (RT6258C) LDOs
Output Supply 100mA
? Pre-biased Soft-Start
? Cycle-by-Cycle Over-Current Protection
? Input Under-Voltage Lockout
? Thermal Shutdown Protection
? Output Over-/Under-Voltage Protection
? Ultrasonic Mode (USM)
