· High Efficiency: Up to 96%
· 1.5MHz Constant Frequency Operation
· Up to 1.5A Output Current(@Vout=1.2V)
· No Schottky Diode Required
· 2.5V to 5.5V Input Voltage Range
· Output Voltage as Low as 0.6V
· 100% Duty Cycle in Dropout
· Low Quiescent Current: 50µA
· Slope Compensated Current Mode Control for Excellent Line and Load Transient Response
· Short Circuit Protection
· Thermal Fault Protection
· Inrush Current Limit and Soft Start
· Input over voltage protection (OVP)
· <1µA Shutdown Current
· SOT23-5 Package
The TMI3408C is a constant frequency, current mode PWM 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 0.6V. The TMI3408C can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. 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.
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