· 2.5V to 6.5V Input Voltage Range
· 1.5MHz Switching Frequency
· PFM in Light Load
· 0.8A Output Current
· No Schottky Diode Required
· Output Voltage as Low as 0.6V
· 100% Duty Cycle in Dropout
· 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 TMI3171 is a constant frequency 1.5MHz, peak current mode step-down converter with 2.5V to 6.5V wide input voltage range. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. The output voltage can be regulated as low as 0.6V. The TMI3171 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. This device adopts peak current mode control and has fast load transient response.
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