TMI3255SF

600kHz, 18V, 5A FPWM Synchronous COT Step-Down

数据表

TMI3255SF_DS_EN_V0.1

产品详细信息

特性

说明

·39mΩ/20mΩ Low RDS(ON) internal FETs

·Force PWM Operation Mode

·Wide Input Range: 4.5V to 18V

·Feedback Voltage Accuracy 0.6V±1.5%

·600kHz Switch Frequency Typical

·Up to 5A Output Current

·COT control to achieve fast transient responses

·Integrated internal compensation

·Stable with Low ESR Ceramic Output Capacitors

·Over Current Protection with Hiccup Mode

·Thermal Shutdown

·Inrush Current Limit and Soft Start

·Build in Input Over Voltage Protection

·Available in SOT23-6 Package

The TMI3255SF is a high efficiency, Constant onTime (COT) control mode synchronous step-down DC-DC converter capable of delivering up to 5A current. TMI3255SF integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. Low output voltage ripple and small external inductor and capacitor size are achieved with typical 600kHz switching frequency. It adopts the COT architecture and force PWM operation in steady state to achieve fast transient responses for high voltage step down applications. The TMI3255SF requires a minimum number of readily available standard external components and is available in a 6-pin SOT23-6 RoHS compliant package.