TMI3113D数据手册Tollsemi中文资料规格书

描述 Description

The TMI3113D 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. The device 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 1MHz high switching frequency of TMI3113D 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. TMI3113D has power good function and it is offered in DFN3x3-10 package.The device offers 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 96% at 5V to 3.3V. 1.0MHz Switching Frequency. 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 Shutdown Protection. Power Good Output Function. Inrush Current Limit and Soft Start. Input overvoltage protection (OVP). <1μA Shutdown Current. DFN3x3-10 package(2)

应用 Application

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