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  4. FemtoBuck DC-DC Regulators and Controllers
Power Management
Power Management

FemtoBuck® DC-DC Regulators and Controllers

Compact in size, the efficient FemtoBuck platform is ideal for small form factor portable applications where long battery life is essential. These buck regulators are adaptive on-time 4MHz switching regulators at full load conditions. Under light load conditions, the regulators seamlessly transition into power save mode which reduces switching frequency and saves energy. High switching frequency operation allows the use of a very small 0.47μH indicator along with small input and output capacitors to minimize overall circuit size. Key features include adjustable output voltage, pre-bias startup protection, internal soft start, and a power good indicator.

Products

Number Name
SC2442 High-Performance Wide Input Range Dual Synchronous Buck Controller
SC2442H High-Performance Wide Input Range Dual Synchronous Buck Controller
SC2544 High Performance Wide Input Range Dual Synchronous Buck Controller
SC2545 High Performance Wide Input Range Dual Synchronous Buck Controller
SC2618 Miniature PWM Controller for Buck Regulator
SC412A Synchronous Buck Controller
SC415 Dual Synchronous Buck PWM Controller
SC416 Dual Synchronous Buck Controller with Tracking Start-up/Shutdown
SC4508A Buck or Buck-Boost (Inverting) Current-Mode Controller
SC4603 Very Low Input, MHz Operation, High-Efficiency Synchronous Buck
SC470 Synchronous Buck Power Supply Controller for Dynamic Load-Voltage Applications
SC471A Synchronous Buck Controller with Multi-Level VOUT Transition Support
SC475A Synchronous Buck Controller with Dual-Level VOUT Transition Support
SC641 EcoSpeed® DC-DC Buck Controller with Integrated LDO
SC1102 Synchronous Voltage-Mode Controller for Distributed Power-Supply Applications
SC1104B Simple, Synchronous Voltage-Mode PWM Controller
SC1175 Low-Power Dual Synchronous DC/DC Controller with Current-Sharing Circuitry
SC1176A Dual Synchronous Voltage-Mode Controller with Current-Sharing Circuitry
SC1185 Programmable Synchronous DC/DC Converter, Dual LDO Controller
SC1185A Programmable Synchronous DC/DC Converter, Dual LDO Controller
SC1186 Programmable Synchronous DC/DC Converter, Dual LDO Controller
SC1189 Programmable Synchronous DC/DC Converter, Dual LDO Controller
SC1205H High-Speed Synchronous Power MOSFET Driver
SC121 Low Voltage Synchronous Boost Regulator
SC1210 High-Speed 12 V Synchronous Power MOSFET Driver
SC1211 High-Speed Combi-Sense™ Synchronous MOSFET Driver
SC1211VX High-Speed Combi-Sense® Synchronous MOSFET Driver for Mobile Applications
SC1214 High Speed Combi-Sense® 2-Phase Synchronous MOSFET Driver
SC1302D Dual High-Speed Low-Side MOSFET Driver
SC1302E Dual High-Speed Low-Side MOSFET Driver
SC1302F Dual High-Speed Low-Side MOSFET Driver
SC1405D High-Speed Synchronous Power MOSFET Smart Driver
SC1417B MicroPower, 620 kHz PWM, Step-Up DC/DC Converter
SC1480 DDR Memory Power Supply Controller
SC1486 Dual Synchronous Buck Pseudo Fixed Frequency DDR Power Supply Controller
SC171 1A EcoSpeed® Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
SC172 2A EcoSpeed® Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
SC173 3A EcoSpeed® Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
SC173A 3A EcoSpeed® Synchronous Step-Down Regulator with Automatic Power Save
SC174 4A EcoSpeed®8482; Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
SC183C 2.5MHz, 2A Synchronous Step-Down Switching Regulator
SC185 4A Synchronous Step-Down Regulator
SC186 4A Synchronous Step-Down Regulator
SC189 2.5MHz, 1.5A Synchronous Step Down Switching Regulator in MLPD2X2
SC190 Synchronous Buck Converter with Programmable Output
SC191 Low Supply Ripple Synchronous Buck Conversion Regulator
SC192 Synchronous Buck Converter with Integrated Power Devices
SC194A 1A Synchronous Buck Converter with Integrated Power Devices
SC194B Selectable 3.6V/3.3V/3.0V/2.5V 1A Synchronous Buck Converter
SC195 3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195F 3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC196 1.5A Synchronous Buck Converter with Integrated Power Devices
SC196A 1.5A Synchronous Buck Converter with Integrated Power Devices
SC197 3.5MHz, 500mA Synchronous Dual Step-Down DC-DC Regulator
SC198 Dual DC-DC Buck Converter with High Current Capability
SC198A Dual DC-DC Buck Converter with High Current Capability
SC202 3.5MHz, 500mA Step-down Regulator with Integrated Inductor
SC202A 3.5MHz, 500mA Step-down Regulator With Integrated Inductor and Digital Programmable Output
SC202F 3.5MHz, 500mA Step-down Regulator with Integrated Inductor
SC21150 Tiny 1.2A Synchronous Buck Regulator
SC21152 Tiny 1.2A Synchronous Buck Regulator with Power Good
SC21154 Tiny 1.2A Synchronous Buck Regulator with Programmable Soft Start
SC220 20MHz, 650mA, X-EMI®-Enabled Synchronous Step-Down Regulator
SC220Q 20MHz, 650mA, X-EMI®-Enabled Synchronous Step-Down Regulator
SC221 20MHz, 650mA, X-EMI®-Enabled Synchronous Step-Down Regulator
SC2434 TriPhase Current Mode Controller with Power Good
SC2440 2.5MHz Dual Switching Regulator w/ Integrated 2A Switches
SC2449 Bi-Phase/Dual Controller
SC2450 Bi-Phase/Dual Controller
SC2453 High-Performance Quad-Output Switching Regulator
SC2516 Complete Three-in-One DDR Power Solution With BF_CUT
SC2542 High Performance Wide Input RangeDual Synchronous Buck Controller
SC2595 Integrated Linear DDR Termination Regulator
SC2608A Simple, Synchronous Voltage Mode PWM Controller
SC2615 Complete DDR Power Solution, Intel Reference Design
SC2642 Multi-Platform Two-Phase PWM Controller
SC2643VX Combi-Sense™ Multi-Platform Multi-Phase PWM Controller
SC2646B 2, 3 or 4 Phase Combi-Sense™ PWM Controller
SC2647 Combi-Sense™ Multi-Platform Multi-Phase PWM Controller
SC2655 Programmable Synchronous DC/DC Hysteretic Controller with VRM 9.0 VID Range
SC2659 Programmable Synchronous DC/DC Hysteretic Controller with VRM 8.5 VID Range
SC2677 Dual Synchronous Voltage-Mode Controller with Current-Sharing Circuitry
SC2688 Programmable Synchronous DC/DC Converter, Dual LDO Controller
SC283 Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator
SC284 Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator
SC284A Dual Channel 2.5MHz, 2.0A Synchronous Buck Regulator
SC284AQ Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
SC284P Dual Channel 2.5MHz, 2.0A Synchronous Buck with Automatic Power Save
SC286 Dual Channel 4A Synchronous Step-Down Regulator
SC3102 2A Synchronous Step-Down Regulator
SC3303 3A EcoSpeed® Step-Down Regulator with LDO and Ultrasonic Power Save
SC410 3A, 24V EcoSpeed® Step-Down Regulator with LDO and Ultrasonic Power Save
SC410A 2A EcoSpeed® Step-Down Regulator with LDO and Power Save
SC411 Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller
SC414 6A Integrated FET Regulator with 5V LDO and Selectable Ultrasonic Power-Save
SC420 High-Speed Combi-Sense® Synchronous Power MOSFET Driver for Mobile Applications
SC420A High-Speed Combi-Sense Synchronous Power MOSFET Driver for Mobile Applications
SC424 6A Integrated FET Regulator with 5V LDO and Selectable Regular Power-Save
SC4508 Buck or Buck-Boost (Inverting) Current-Mode Controller
SC4517A Obsolete - this device is no longer available. Datasheet is for information purposes only
SC4520 3A Step-Down Switching Regulator with Adjustable Switching Frequency
SC4524C 28V 2A Step-Down Switching Regulator
SC4524D 18V 2A Step-Down Switching Regulator
SC4524E 28V 2A Step-Down Switching Regulator
SC4524F 18V 2A Step-Down Switching Regulator
SC4525C 28V 3A Step-Down Switching Regulator
SC4525D 18V, 3A, 350kHz Step-Down Switching Regulator
SC4525E 28V 3A Step-Down Switching Regulator
SC4525F 18V, 3A, 350kHz Step-Down Switching Regulator
SC453 Portable, VID Programmed Single Phase Power Supply Controller
SC4530 30V, 300mA Output Micropower Step-Down Switching Regulator
SC457 Single-Phase Single Chip Vcore Power Supply
SC458 Complete Dual-Phase Low VOUT Power Supply Controller
SC4608 High Efficiency Synchronous Step Down Controller
SC4620 Low Input Voltage, High Efficiency, 2.5A Integrated FET Synchronous Step down DC/DC Regulator
SC4626 2.5MHz, 1A Synchronous Step Down Regulator in SOT23-5
SC471 Synchronous Buck Controller with Multi-Level VOUT Transition Support
SC472B Single-Phase Single Chip Graphics Core Power Supply
SC480 Complete DDR1/2/3 Memory Power Supply
SC4806 Multiple Function Double Ended PWM Controller
SC4809A High-Performance Bi-Phase Current-Mode PWM Controller
SC4809B High-Performance Current-Mode PWM Controller
SC4809C High-Performance Current-Mode PWM Controller
SC4810B High-Performance Current-Mode PWM Controller with Complementary Output, Programmable Delay
SC4810E High-Performance Current-Mode PWM Controller with Complementary Output, Programmable Delay
SC483 Dual Synchronous Buck Pseudo-Fixed-Frequency Power-Supply Controller
SC4901 Combi-Sync Secondary-Side Synchronous Rectifier and Regulator
SC4905B High-Performance Voltage-Mode PWM Controller
SC4910A High-Performance Secondary Side Controller with Synchronous Rectifier
SC4911 Bias/Primary Side PWM Controller with Ultra-Low Start-up Current
SC2441 Very Low Input Voltage 2-Phase Synchronous Step-Down Controller with Step-Up Converter
SC2447 Dual-Phase, Single or Dual Output Synchronous Step-Down Controller
SC2602 Synchronous Voltage-Mode Controller for Distributed Power-Supply Applications
SC2621 500 kHz Voltage-Mode PWM Controller With Linear Power Regulator
SC2621A Voltage-Mode PWM Controller With Linear Power Regulator
SC450 PowerStep IV® Portable IMVP-IV® and IMVP-IV+® Dual-Phase Power-Supply Controller
SC451 PowerStep IV® Portable IMVP-IV® and IMVP-IV+® Single-Phase Power-Supply Controller
SC452 Dual-Phase Single Chip IMVP-6 Vcore Power Supply
SC454 Single-Phase Single Chip IMVP-6/6+ Vcore Power Supply
SC4602 Not Recommended For New Designs, Consult Factory
SC4605 Not Recommended For New Designs, Consult Factory
SC4607 Not Recommended For New Designs, Consult Factory
SC4614 500kHz Voltage Mode PWM Controller
SC473 Single-Phase Single Chip Graphics Core Power Supply
SC486 Complete DDR1/2 Memory Power Supply
SC4905A High-Performance Voltage-Mode PWM Controller
SC493 EcoSpeed® Step-down Controller with I2C Interface
SC801 Fully Integrated High Current Lithium-Ion Battery Charger System
SC802 Fully Integrated Lithium-Ion Battery-Charger System with Timer
SC802A Fully Integrated Lithium-Ion Battery-Charger System with Timer
SC803 Not Recommended For New Designs
SC804 Fully Integrated Lithium-Ion Battery Charger System with Timer
SC804A Fully Integrated 4.4V Lithium-Ion Battery Charger System with Timer
SC805 Not Recommended for New Designs; Use SC805A
SC805A Miniature High Current Lithium-Ion Battery Charger
SC806 Miniature High Current Lithium-Ion Battery Charger
SC810 Single Input/Single Mode Single-cell Li-ion Battery Charger
SC811 Adapter/USB Tri-Mode Single-cell Li-ion Battery Charger
SC813 Adapter/USB Tri-Mode Single-cell Li-ion Battery Charger
SC820 Adapter/USB Dual Input Single-cell Li-ion Battery Charger
SC824 Single-cell Li-Ion Battery Charger Tri-Mode with Timer and NTC
SC908 Power Management IC for Single-Cell Li-Ion Devices
TS30011 High Efficiency 1A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
TS30012 High Efficiency 2A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
TS30013 High Efficiency 3A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
TS30041 High Efficiency 1A/2A Current-Mode Synchronous Buck Converter, 1MHz
TS30041Q High Efficiency 1A/2A Current-Mode Synchronous Buck Converter, 2.2MHz
TS30042 High Efficiency 1A/2A Current-Mode Synchronous Buck Converter, 1MHz
TS30042Q High Efficiency 1A/2A Current-Mode Synchronous Buck Converter, 2.2MHz
TS30111 High Efficiency 700mA Current-Mode Synchronous Buck DC/DC Converter, 1MHz
TS33010 High Efficiency Synchronous 500mA DC/DC Buck Converter, 2.25Mhz

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