TMI3255B

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

数据表

TMI3255B_DS_EN_V0.1

产品详细信息

特性

说明

·45mΩ/25mΩ Low RDS(ON) internal FETs

·High Efficiency Synchronous-Mode Operation

·Wide Input Range: 4.5V to 18V

·Feedback Voltage Accuracy 0.8V±2%

·600kHz Switch Frequency

·Up to 5A Output Current

·COT control to achieve fast transient responses

·Power Save Mode at Light Load

·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 DFN2x2-6FC Package

The TMI3255B is a high efficiency 600kHz, Constant on-Time (COT) control mode synchronous step-down DC-DC converter capable of delivering up to 5A current. TMI3255B 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 600kHz switching frequency. It adopts the COT architecture to achieve fast transient responses for high voltage step down applications. The TMI3255B requires a minimum number of readily available standard external components and is available in a 6-pin DFN2x2-6FC ROHS compliant package.