MT3101ADER/MT3101BDER Synchronous Step-Down Converter

发表时间：2023-11-06 09:36

　　The MT3101ADER/MT3101BDER is a high efficiency 2Aconstant on time(COT)controlled synchronous step-down converter.It can operate with input voltage from 2.5V to 5.5V and provide output range from 0.6V to input level,thanks to its 100%duty cycle operation.The constant on-time control scheme simplifies loop compensation and offers excellent load transient response.

MT3101ADER/MT3101BDER consumes extremely low 15µA quiescent current hence achieves superior light load efficiency.The high gain error amplifier in the control loop provides excellent load and line regulation.Proprietary adaptive on-time helps MT3101/A/B to achieve nearly constant switching frequency across load range.

MT3101ADER/MT3101BDER has cycle-by-cycle current limit and hiccup mode to protect over-load or short circuit fault conditions.

MT3101ADER/MT3101BDER is available in low profile 6 leads DFN 2mmx2mm packages.

　　MT3101ADER/MT3101BDER FEATURES:

　　-Wide Input Range from 2.5V to 6V

　　-Proprietary Fast Transient Constant On Time Architecture Stable with low ESR Ceramic Output Capacitors

　　-+/-2%0.6V Feedback Voltage

　　-MT3101:2.5MHz with Light Load Pulse Skip(PSM)Mode

　　MT3101A:2.5MHz with Forced PWM(FPWM)Mode

　　-MT3101B:1.5MHz with Light Load Pulse Skip(PSM)Mode

　　-15µA Low Quiescent Current

　　-2A Continuous Output Current

　　-1.21V Accurate Enable Threshold

　　-Up to 95%Efficiency

　　-100%Duty Cycle Operation

　　-Built-in 130mΩ/100mΩPower Switches

　　-Internal 1msec Soft-Start

　　-Cycle-by-cycle Current Limit Protection

　　-Over-Load and Short Circuit Hiccup Mode

　　-Open Drain Power Good Indication

　　-Output Discharge

　　-Thermal Shutdown Protection

　　-Available in Small DFN2x2_6L Package

　　-Pb-Free RoHS Compliant

　　MT3101ADER/MT3101BDER APPLICATIONS:

　　-Solid-State and Hard Disk Drives

　　-WiFi RF Moudules

　　-DC/DC Micro Modules

　　-Smart Phone and Tablets