Features
⚫ 140mΩ/70mΩ Low RDS(ON) internal FETs
⚫ High Efficiency Synchronous-Mode
Operation
⚫ Wide Input Range:4.5V to 18V
⚫ Output Voltage from
0.8V(TMI3252)
0.6V(TMI3252S)
0.756(TMI3252T)
⚫ 600kHz Switch Frequency
⚫ Up to 2A 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

Description
The TMI3252/S/T is a high efficiency 600kHz,
Constant on-Time (COT) control mode synchronous
step-down DC-DC converter capable of delivering
up to 2A current. TMI3252/S/T 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 TMI3252 requires a minimum number of readily
available standard external components and is
available in a 6-pin SOT23-6 ROHS compliant
package.

Application
⚫ Digital Set Top Boxes
⚫ Flat Panel Television and Monitors
⚫ Notebook computer
⚫ Wireless and DSL Modems