·1.5MHz Constant Frequency Operation
·1.0A Output Current No Schottky Diode Required
·2.5V to 5.5V Input Voltage Range
·Feedback Voltage as Low as 0.1V
·100% Duty Cycle in Dropout
·Low Quiescent Current: 50µA
·Short Circuit Protection
·Thermal Fault Protection
·Input over voltage protection (OVP)
·<1µA Shutdown Current
·SOT23-5 Package
The TMI5101 is a constant frequency, current mode PWM step-down LED driver with 1A output current and 1.5MHz switch frequency. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the LED current. The feedback voltage is 0.1V typically. The device also integrates many protection features included input OVP, cycle-by-cycle current limit, over temperature protection.
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