TMI3253/S/T 600kHz 18V 3A Synchronous COT Step-Down Converter

PublishTime：2020-11-23

The TMI3253/S/T is a high efficiency 600kHz, Constant on-Time (COT) control mode synchronous step-down DC-DC converter capable of delivering up to 3A current. TMI3253/S/T integrates main switch and synchronous switch with very low R-DS(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 TMI3253/S/T requires a minimum number of readily available standard external components and is available in a 6-pin SOT23-6 ROHS compliant package.
Features:
●70mΩ/35mΩ Low R-DS(ON) internal FETs
●High Efficiency Synchronous-Mode Operation
●Wide Input Range: 4.5V to 18V
●Output Voltage from
0.8V(TMI3253)
0.6V(TMI3253S)
0.765V(TMI3253T)
●600kHz Switch Frequency
●Up to 3A, 3.5A@1.2V 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 SOT23-6 Package

Brand of Product：	TOLL
Part#：	TMI3253 、 TMI3253S 、 TMI3253T More Part#
Product Category：	Synchronous COT Step-Down Converter 、 Constant-on-Time (COT) control mode synchronous step-down DC-DC converter More
Application：	[ Digital Set Top Boxes ][ Flat Panel Television ][ Monitors ][ Notebook computer ][ Wireless ][ DSL Modems ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	SOT23-6
Language：	English Chinese Chinese and English Japanese
Date of Creation：	2019.11
Version Number：	Rev. 1.5
Data Encoding：
Data Size：	1.4 MB

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