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