TMI3112 5.5V, 1MHz, 2A Synchronous Step-Down Converter with Power Good Function
■The TMI3112 is a 1MHz constant frequency, current mode step-down converter with Power Good indicator function. It is ideal for portable equipment requiring very high current up to 2A from single-cell Lithium-ion batteries or other input source from 2.5V to 5.5V input voltage and the output voltage can be regulated as low as 0.6V. The TMI3112also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications. The high switching frequency minimizes the size of external components while keeping switching losses low. The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation. The TMI3112 is offered in a 6-pin, SOT package, and is available in an adjustable version.
■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.
●FEATURES：
■High Efficiency: Up to 95%(@3.3V-OUT)
■1MHz Co Frequency Operation
■2A Output Current
■2.5V to 5.5V Input Voltage Range
■Output Voltage as Low as 0.6V
■PFM Mode for High Efficiency in Light Load
■100% Duty Cycle in Dropout Operation
■Low Quiescent Current: 40μA
■Short Circuit Protection
■Thermal Fault Protection
■Inrush Current Limit and Soft Start
■Input over voltage protection (OVP)
■Power Good Function
■<1μA Shutdown Current
■SOT23-6 Package
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| 世强硬创平台www.sekorm.com | |
| 世强硬创平台www.sekorm.com |
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