RT7249 Datasheet 18V Synchronous Step-Down Converter

Manufacturer: Richtek

Datasheet Details

Part number	RT7249
Manufacturer	Richtek
File Size	268.78 KB
Description	18V Synchronous Step-Down Converter
Download	RT7249 Download (PDF)

The RT7249 is a high efficiency, monolithic synchronous step-down DC/DC converter with a power switch.

The Buck converter can deliver up to 3A output current from 4.5V to 18V input supply.

The RT7249's current-mode architecture and external compensation allow the transient response to be optimized over a wide input range and loads.

® RT7249 3A, 18V Synchronous Step-Down Converter with Adjustable Current Limited Power Switch.

z Buck Regulator ` 4.5V to 18V Input Voltage Range ` 3A Output Current ` Internal N-Channel MOSFETs ` Current Mode Control ` Adjustable PWM Frequency ` Adjustable Output from 0.8V to 15V ` Adjustable Soft-Start Time ` Stable with Ceramic Output Capacitors ` Cycle-by-Cycle Current Limit ` Input Under-Voltage Lockout ` Output Under-Voltage Protection ` Thermal Shutdown z Power Switch ` ±15% Current-Limit Accuracy at 1.2A ` Adjustable Current Limit : 75mA to 2580mA ` Meet USB Current-Limiting Requi.

Part Number	Description
RT7240	Synchronous Step-Down Converter
RT7240A	Synchronous Step-Down Converter
RT7241A	Synchronous Buck Converter
RT7247A	Synchronous Step-Down Converter
RT7247B	1.2MHz Synchronous Step-Down Converter
RT7247C	Synchronous Step-Down Converter
RT7248	Synchronous Step-Down Converter
RT7202K	Highly Integrated USB PD Type-C Controller
RT7202KLA	Programmable Multi-Protocol Controller
RT7202KNL	Highly-Integrated USB Type-C Power Delivery Controller