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Richtek provides a wide range of solutions for small cell base stations, passive optical network, routers, and STBs, including DC/DC converters, controllers, LDOs, DDR terminators, load switches, sequencers and more. Our products offer high efficiency, high density and flexibility to help designers achieve cost-effective, yet high performance in compact sizes.

Buck Controller
Part NumberDescriptionRelated Products
RT2702Step-Down DC-DC Controller with Remote SenseSwitching Regulators > Step-Down (Buck) Controllers
Buck Converter
Part NumberDescriptionRelated Products
RT26596A, 6V, Synchronous Step-Down Converter with REFINSwitching Regulators > Step-Down (Buck) Converters
RT28566A, 18V, Synchronous Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT2857B6A, 18V, Synchronous Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT2859A/RT2859B3A, 18V, 650kHz, ACOTTM Synchronous Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT80823A, 2MHz, Synchronous Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RTQ2822A/RTQ2822B12A, 17V, High Efficiency Synchronous Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RTQ2823A/RTQ2823B8A, 17V, High Efficiency Synchronous Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RTQ2965-QA60VIN, 5A, Asynchronous Step-Down Converter with Low Quiescent CurrentSwitching Regulators > Step-Down (Buck) Converters
LDO
Part NumberDescriptionRelated Products
RT2517A1A, 6V, Ultra Low Dropout Linear RegulatorLinear Regulators > Single Output LDO
RT2519W1A, Low Noise, Ultra High PSRR, Low-Dropout Linear RegulatorLinear Regulators > Single Output LDO
RTQ2513T3A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear RegulatorLinear Regulators > Single Output LDO
RTQ2532W2A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear RegulatorLinear Regulators > Single Output LDO
RTQ2533W3A, 6.5V, Ultra Low Noise, Ultra Low Dropout Linear RegulatorLinear Regulators > Single Output LDO
DDR Termination
Part NumberDescriptionRelated Products
RT2568DDR Termination RegulatorMemory Power Solutions
Load Switch
Part NumberDescriptionRelated Products
RTQ9740ADual Channel, Ultra-Low Resistance Load SwitchSwitches
Sequencer
Part NumberDescriptionRelated Products
RT2910AHigh Efficiency Inverting PWM Converter with Surge StopperSupervisors & Reset ICs > Power Monitoring and Protection
Buck Converter (2A~3A)
Part NumberDescriptionRelated Products
RT6252A/RT6252B17V Input, 2A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6253A/RT6253B17V Input, 3A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6254A/RT6254B4A, 18V, 500kHz, ACOT® Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT6255A/RT6255B5A, 18V, 500kHz, ACOTTM Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT6257A/RT6257B18V, 6A, 500kHz, ACOTTM Step-Down Converter in 6 pin TSOT-23Switching Regulators > Step-Down (Buck) Converters
RT6264A/RT6264B18V Input, 4A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6272A/RT6272B17V Input, 2A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6273A/RT6273B17V Input, 3A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6274C/RT6274D18V Input, 3.5A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters

Passive Optical Network (xPON)

Buck Converter (2A~3A)
Buck Converter (2A~3A)
Buck Converter (2A~3A)
Buck Converter (2A~3A)
Buck Converter (2A~3A)
Part NumberDescriptionRelated Products
RT6252A/RT6252B17V Input, 2A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6253A/RT6253B17V Input, 3A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6254A/RT6254B4A, 18V, 500kHz, ACOT® Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT6255A/RT6255B5A, 18V, 500kHz, ACOTTM Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT6257A/RT6257B18V, 6A, 500kHz, ACOTTM Step-Down Converter in 6 pin TSOT-23Switching Regulators > Step-Down (Buck) Converters
RT6264A/RT6264B18V Input, 4A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6272A/RT6272B17V Input, 2A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6273A/RT6273B17V Input, 3A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6274C/RT6274D18V Input, 3.5A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
Buck Converter (2A~3A)
Part NumberDescriptionRelated Products
RT6252A/RT6252B17V Input, 2A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6253A/RT6253B17V Input, 3A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6254A/RT6254B4A, 18V, 500kHz, ACOT® Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT6255A/RT6255B5A, 18V, 500kHz, ACOTTM Step-Down ConverterSwitching Regulators > Step-Down (Buck) Converters
RT6257A/RT6257B18V, 6A, 500kHz, ACOTTM Step-Down Converter in 6 pin TSOT-23Switching Regulators > Step-Down (Buck) Converters
RT6264A/RT6264B18V Input, 4A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6272A/RT6272B17V Input, 2A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6273A/RT6273B17V Input, 3A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
RT6274C/RT6274D18V Input, 3.5A, ACOT® Buck Converter with Both FETs OC ProtectionSwitching Regulators > Step-Down (Buck) Converters
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