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Switching Regulators

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Richtek switching voltage regulators provide accurate output voltage regulation with high efficiency for wide range of applications from battery powered mobile applications to high power CORE supply computing applications. To select the correct type of switching regulator, you need to consider the application input and output voltage and load current conditions.

Product Line

The following is a list of products released in the last

Part NumberDescriptionShareDatasheetFree Sample
RT6203E6A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter with VID Control Not available
RT6243A/RT6243B12A, 17V, High Efficiency Synchronous Step-Down Converter Not available
RT6203F6A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter with VID Control Not available
RTQ2105-QA36VIN, 3A, High Efficiency Synchronous Step-Down Converter with Low Quiescent Current Not available
RTQ2104-QA36VIN, 3A, High Efficiency, 2.1MHz, Synchronous Step-Down Converter with Low Quiescent Current Not available
RTQ2106-QA36VIN, 3A, High Efficiency, 2.1MHz, Synchronous Step-Down Converter with Low Quiescent Current Not available
RT6215F2A, 24V, 800kHz, ACOT™ Step-Down Converter Not available
RT6541AHigh Efficiency Single Synchronous Buck PWM Controller Not available
RT6542AHigh Efficiency Single Synchronous Buck PWM Controller Not available
RT8237HHigh Efficiency Single Synchronous Buck PWM Controller Not available
RT6576FDual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs Not available
RT8237JHigh Efficiency Single Synchronous Buck PWM Controller Not available
RT6575EDual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs Not available
RT85093A, 14V Step-Up DC-DC Converter Not available
RT57599A, 6.5V, 1MHz, ACOT™ Synchronous Step-Down Converter with I2C Interface Not available
RTQ2132B-QT1.2A, 36V, 2.1MHz Synchronous Step-Down Converter Request
RT8816BDual-Phase PWM Controller with PWM-VID Reference Not available
RT9284A-E/RT9284B-ETiny Package, High Performance, Constant Current Switching Regulator for White LED Request
RT6280B23V, 10A, 500kHz ACOT™ Synchronous Step-Down Converter Not available
RT6258B/RT6258C8A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO Not available
RT57589A, 6.5V, 1MHz Synchronous Step-Down Converter Not available
RTQ2131B-QA1A, 36V, 2.1MHz Synchronous Step-Down Converter Request
RT5710F1A, 1MHz, 6V CMCOT Synchronous Step-Down Converte Not available
RT8845BMulti-Phase PWM Controller with PWM-VID Reference Not available
RT8845AMulti-Phase PWM Controller with PWM-VID Reference Not available
RTQ2130B-QT0.7A, 36V, 2.1MHz Synchronous Small Form Factor Step-Down Converter Request
RT8125F/RT8125GHigh Efficiency Single Synchronous Buck PWM Controller Not available
RT6256B/RT6256C6A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO Not available
RT8132AHigh Efficiency Single Synchronous Buck PWM Controller Not available
RT5707/RT5707AUltra-Low Quiescent Current HCOT Buck Converter Request
RT725518V, 1.5A, 500kHz ACOTTM Step-down Converter in 8 Pin TSOT-23 Not available
RT6215A/RT6215B24V, 2A, 500kHz, ACOTTM Step-Down Converter in 8 Pin TSOT-23 Not available
RT6217A/RT6217B24V, 3A, 500kHz, ACOTTM Step-Down Converter in 8 Pin TSOT-23 Request
RT5779A/RT5779B6V, 5A, 1.5MHz ACOTTM Synchronous Step-Down Converter in TSOT-23-8 package Not available
RT62194A, 23V, 500kHz, ACOTTM Synchronous Buck Converter Request
RT8206BHigh Efficiency, Main Power Supply Controllers for Notebook Computers Not available
RT8098D6V, 2.5A, 1MHz, CMCOT Synchronous Step-Down Converter Not available
RT6276A/RT6276B23V, 6A, 500kHz ACOT™ Synchronous Step-Down Converter Request
RT6278A/RT6278B23V, 8A, 500kHz ACOT™ Synchronous Step-Down Converter Request
RT6250A/RT6250B18V, 10A, 500kHz ACOT™ Synchronous Step-Down Converter Request
RT6246B18V, 6A, 500kHz ACOT™ Synchronous Step-Down Converter Not available
RT6248B18V, 8A, 500kHz ACOT™ Synchronous Step-Down Converter Not available
RT6226A/RT6226B/RT6226C6A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO Not available
RT8231CComplete DDR Memory Power Supply Controller Not available
RT6228A/RT6228B/RT6228C8A, 23V Synchronous Step-Down Converter with 3.3V/5V LDO