The RAA211650 is an integrated 60V, 5A synchronous buck regulator with adjustable switching frequency from 200kHz up to 2.5MHz. It supports a wide input voltage range from 4.5V to 60V and adjustable output voltage (0.8V to maximum duty cycle * VIN). The integrated low rDS(ON) MOSFETs, gate drivers, and the controller make RAA211650 an efficient voltage step-down solution.
The device switches at a default frequency of 500kHz if the RT pin is tied to AVCC, however, it can be programmed to switch from 200kHz to 2.5MHz by using an external resistor on the RT pin. The MODE/SYNC pin can dither the oscillator frequency if the spread-spectrum operation is required. The internal oscillator can also be synchronized to an external clock through the MODE/SYNC pin. The integrated regulator also has options either to use internal fixed compensation or user-selected external compensation.
To limit inrush current during startup, RAA211650 has 2ms fixed internal soft-start time. It can also be programed by an external capacitor.
The RAA211650 provides programmable startup delay time for sequencing purposes. Also, the RAA211650 provides comprehensive protections including undervoltage lockout, overcurrent (positive and negative), overvoltage, and over-temperature.
|1-Phase Power Meter|
|AC Servo Solution|
|AI Vision & Voice Recognition Solution|
|Elevator Control System|
|High Throughput Wi-Fi 6 Router|
|IO-Link Master Solution|
|Ku Band Radar with Beamformer Array|
|Local Dimming System for Monitors|
|Multi-Protocol Industrial Ethernet Switch|
|Portable Wi-Fi Controlled RGBW Lighting|
|Power Supply for 5G Solutions|
|Real-Time Industrial Ethernet Switch (Low Cost) with RZ/N1S|
|ROS-Based Robot Body Controller|
|Smart Home Controller with Multiple PHY|
|Smart Industrial Gas Alarm|
|Vision AI Gateway Solution|
|Wired & Wireless IEEE 1588 Solution|
The RTKA211650DE0000BU evaluation board provides a quick and comprehensive platform for evaluating the high-performance features of the RAA211650 switching regulator....
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Select an orderable part number:
|Orderable Part ID||Sample|