TOLL TMI3255S
The TMI3255S is a high efficiency, Constant onTime (COT) control mode synchronous step-down DC-DC converter capable of delivering up to 5A current. It adopts the COT architecture to achieve fast transient responses for high voltage step down applications. The TMI3255S requires a minimum number of readily available standard external components and is available in a 6-pin SOT23-6 RoHS compliant package.| Part No. | TMI3255S |
|---|---|
| Datasheet | TMI3255S Download |
| Manufacturer |  TOLL |
| Description | 5A Synchronous COT Step-Down Converter |
| Buy | Stock & Price |
FEATURES
● 39mΩ/20mΩ Low RDS(ON) internal FETs● High Efficiency Synchronous-Mode Operation
● 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
● 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
TMI3255S 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. Application● Digital Set Top Boxes
● Flat Panel Television and Monitors
● Wireless and DSL Modems Typical Application CIN1 22µF C4 0.1µF CIN2 100nF IN R3 100kΩ BS LX EN FB GND L 2.2µH R1 39kΩ...
