MT3405AC 1uA Ultra-Low Quiescent Current, 1.3A Output Synchronous BUCK

The MT3405AC is a constant frequency, current mode step-down converter. The device
integrates a main switch and a synchronous
rectifier for high efficiency without an external
Schottky diode. It is ideal for powering portable
equipment that runs from a single cell
Lithium-Ion (Li+) battery. The output voltage
can be regulated as low as 1.13V. This device
offers two operation modes, PWM control and
PFM Mode switching control, which allows a
high efficiency over the wider range of the load. The MT3405AC is offered in a low profile 5-pin, SOT package, and is available in an adjustable
version.


FEATURES
 Ultra low Iq:1uA
 High Efficiency: Up to 96%
 1.5MHz Constant Frequency Operation
 1.3A Output Current
 No Schottky Diode Required
 2.6V to 7V Input Voltage Range
 Low Dropout Operation:100%Duty Cycle
 PFM Mode for High Efficiency in Light
Load
 Slope Compensated Current Mode
Control for Excellent Line and Load
Transient Response
 Short Circuit Protection
 Thermal Fault Protection
 Inrush Current Limit and Soft Start
 <1μA Shutdown Current
 SOT23-5 package
APPLICATIONS
 Wearable
 IOT
 Energy Harvest
 Battery powered devices
 

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