TMI3163数据手册Tollsemi中文资料规格书

描述 Description

The TMI3163 is a 1.0MHz constant frequency, current mode step-down converter. It is ideal for portable equipment requiring high output current up to 3.5A from single-cell Lithium-ion batteries. They also 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 of TMI3163 could minimize 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. TMI3163 has power good function and it is offered in DFN3*3-10 package.The device offer two operation modes, PWM control and PFM Mode switching control, which allow a high efficiency over the wider range of the load.

特性 Features

. High Efficiency: Up to 95%. 1.0MHz Constant Frequency Operation. Up to 3.5A Output Current. No Schottky Diode Required. 2.7V 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: 50μA. Short Circuit Protection. Thermal Fault Protection. Power Good Output Function. Inrush Current Limit and Soft Start. Input overvoltage protection (OVP). <1μA Shutdown Current. DFN3*3-10 package(2)

应用 Application

. Cellular and Smart Phones. Wireless and DSL Modems. Portable Instruments. Digital and Video Cameras. PC Cards