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Seiko Instruments Inc.

Seiko Instruments Inc.- DC DC Converters

Seiko Instruments Inc. (SII) was founded in 1937 as a key manufacturing arm of the Seiko Group, with headquarters in Chiba, Japan. The company specializes in micromechatronics, nanotechnology, and low-power consumption technologies derived from decades of precision watchmaking. Its core business encompasses electronic devices, hard disk drive (HDD) components, large-format inkjet printers, network solutions, and scientific instruments. SII is particularly renowned for its high-performance quartz crystal devices, including MHz-band crystal units, 32.768 kHz tuning fork crystals, and high-precision TCXO/OCXO oscillators. Its product portfolio also features CMOS ICs such as real-time clocks (RTCs), voltage detectors, and power management ICs that leverage its crystal technology. The company's crystal device series, including the SML tuning fork crystals and SPXO crystal oscillators, are widely adopted in consumer electronics, automotive systems, and IoT applications. With a global reputation built on decades of innovation, SII is considered one of the world's top quartz crystal manufacturers, competing closely with NDK and KDS. Its technological excellence in miniaturization, frequency stability, and ultra-low power consumption sets it apart in the electronic components market. SII continues to drive advancements in timing solutions through continuous R&D investment and application of MEMS fabrication techniques.

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DC DC Converters - 型号列表

54 parts in total

Voltage Rating

Package / Case

Supplier Device Package

Frequency - Switching

Standard Package

Packaging

Operating Temperature

Factory Pack Quantity

RoHS

Efficiency

Voltage - Input (Min)

Width

Type

Product Category

Voltage - Supply

Mfr Part #Quantity AvailablePriceStandard PackagePackagingMounting TypePackage / CaseOperating TemperatureSupplier Device PackageRoHSVoltage RatingNumber of OutputsTypeFactory Pack QuantityEfficiencyOutput TypeLoad RegulationCurrent - OutputFrequency - SwitchingSynchronous RectifierVoltage - Input (Min)WidthMounting StyleProduct CategoryVoltage - SupplyFunctionBattery ChemistryOther NamesTariff NoAccuracyFrequencyRegulator TypeVoltage - Continuous Operating (Max) (MCOV)WeightTerminationNumber of PinsMaterial FinishPWM TypeDuty CycleCuk ConverterBuck ConverterIsolated PowerBoost ConverterFrequency - MaxDoubler ConverterFlyback ConverterDivider/MultiplierInverting Converter
S-8241ACGPN-KCGTFG
S-8241ACGPN-KCGTFG

LITHIUM-ION BATTERY PROTECTION (1 CELL)

seiko instruments

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S-8241ACNPN-KCNTFG
S-8241ACNPN-KCNTFG

LITHIUM-ION BATTERY PROTECTION (1 CELL)

seiko instruments

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S-8261ABHBD-G3HTFG
S-8261ABHBD-G3HTFG

LITHIUM-ION BATTERY PROTECTION (1 CELL) IC LI-ION BATT PROTECT SOT23-6

seiko instruments

-3,000Tape & Reel (TR)Surface MountSOT-23-6-40°C ~ 85°CSOT-23-6----------------Over/Under Voltage ProtectionLi-Ion, Li-Pol---------------------
S-8353A20MC-IQFT2G
S-8353A20MC-IQFT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 2V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant2 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353A30MC-IQPT2G
S-8353A30MC-IQPT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 3V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant3 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353A38MC-IQXT2G
S-8353A38MC-IQXT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 3.8V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant3.8 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353C30MA-ISPT2G
S-8353C30MA-ISPT2G

Conv DC-DC Single Step Up 10V 3-Pin SOT-23 T/R DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 3V SOT23-3 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount3SOT-23-40 to 85 °CSOT-23-3RoHS Compliant3 V1Step Up300084(Typ) %Fixed60 mVFixed30 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353D20MC-IUFT2G
S-8353D20MC-IUFT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 2V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant2 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353D50MC-IVJT2G
S-8353D50MC-IVJT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 5V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant5 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353H31MC-IWQT2G
S-8353H31MC-IWQT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 3.1V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant3.1 V1Step Up300085(Typ) %Fixed60 mVFixed250 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353H33MC-IWST2G
S-8353H33MC-IWST2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 3.3V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant3.3 V1Step Up300085(Typ) %Fixed60 mVFixed250 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353H40MC-IWZT2G
S-8353H40MC-IWZT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 4V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant4 V1Step Up300085(Typ) %Fixed60 mVFixed250 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353H45MC-IXET2G
S-8353H45MC-IXET2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 4.5V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant4.5 V1Step Up300085(Typ) %Fixed60 mVFixed250 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8353J50MC-IZJT2G
S-8353J50MC-IZJT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 5V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant5 V1Step Up300085(Typ) %Fixed60 mVFixed250 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8354A27MC-JQMT2G
S-8354A27MC-JQMT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators STEP-UP SWR, PWM 2.7V 18.7uA IC REG BOOST 2.7V SOT23-5 Voltage Regulators - Switching Regulators STEP-UP SWR, PWM 2.7V 18.7uA

seiko instruments

59881: ¥5.304Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant2.7 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo10 V1.6 mmSMD/SMTDC/DC Switching Regulators------------------------
S-8354A30MA-JQPT2G
S-8354A30MA-JQPT2G

Conv DC-DC Single Step Up 10V 3-Pin SOT-23 T/R DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 3V SOT23-3 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount3SOT-23-40 to 85 °CSOT-23-3RoHS Compliant3 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8354A50MC-JRJT2G
2
S-8354A50MC-JRJT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 T/R IC REG BOOST 5V SOT-23-5 Voltage Regulators - Switching Regulators 5.0V Step-Up 2.4% IC, DC-DC CONVERTER, SOT-23-5

seiko instruments

53871: ¥5.304Tape & ReelTape & Reel (TR)Surface Mount5SOT-23-40 to 85 °CSOT-23-5Lead free / RoHS Compliant5 V1Step Up300085(Typ) %Fixed60 mVFixed50 kHzNo5V1.6 mmSMD/SMTVoltage Regulators - Switching Regulators:10V--728-1036-185423190:2.4%:50kHz:SWR:10V0.000015:SMD:5:------------
S-8354A50UA-JRJT2G
S-8354A50UA-JRJT2G

Conv DC-DC Single Step Up 10V 4-Pin(3+Tab) SOT-89 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 5V SOT89-3 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

10420: ¥6.3512Tape & ReelReelSurface Mount4SOT-89-40 to 85 °CSOT-89-3RoHS Compliant5 V1Step Up100085(Typ) %Fixed60 mVFixed50 kHzNo10 V2.5 mmSMD/SMT-------------------------
S-8354H50MC-JXJT2G
S-8354H50MC-JXJT2G

Conv DC-DC Single Step Up 10V 5-Pin SOT-23 DC/DC Switching Regulators Step-Up SWR PWM 18.7uA Iq IC REG BOOST 5V SOT23-5 Voltage Regulators - Switching Regulators Step-Up SWR PWM 18.7uA Iq

seiko instruments

102040: ¥3.9032Tape & ReelReelSurface Mount5SOT-23-40 to 85 °CSOT-23-5RoHS Compliant5 V1Step Up300085(Typ) %Fixed60 mVFixed250 kHzNo10 V1.6 mmSMD/SMT-------------------------
S-8355Q28BD-OWN-TFG
S-8355Q28BD-OWN-TFG

DC DC Cntrlr Single-OUT PWM DC to DC Controller/Step Up 10V Input 6-Pin SNB(B) T/R IC REG CTRLR BST PWM 6-SNB

seiko instruments

-Tape & ReelTape & Reel (TR)Surface Mount6SNB(B)-40 to 85 °C-Lead free / RoHS Compliant2.8 V1PWM DC to DC Controller/Step Up-----------1.8 to 10 V------------Controller85%NoNoNoYes690kHzNoNoNoNo
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