High-Performance DC/DC Switching Regulators for Efficient Power Conversion

Semtech DC/DC regulators enable the use of smaller external components, minimizing overall solution size while providing superior reliability

Image of Semtech High-Performance DC/DC Switching RegulatorsSemtech DC/DC switching regulators deliver exceptional performance in compact packages, making them ideal for space-constrained applications where efficiency is critical. The buck (step down) regulators provide ultra-fast transient response while maintaining high efficiency across all load conditions from light to full power loads. These converters seamlessly transition into power save mode under light loads, significantly reducing power consumption without compromising performance.

The boost (step up) regulators complement this lineup with high efficiency and low noise operation, enabling applications that require a higher output voltage than the input source can provide. Both regulator types support a wide range of input voltages and programmable output options, making them suitable for diverse applications from portable devices to industrial equipment.

With high switching frequencies up to 4 MHz, Semtech DC/DC regulators enable the use of smaller external components, minimizing overall solution size while providing superior regulation and reliability. Whether users need to step down or step up voltage, Semtech offers a comprehensive portfolio of switching regulators to meet their power conversion needs.

Features
  • High switching frequencies for smaller solution size
  • Wide input voltage range options (2.9 V to 40 V)
  • Programmable and fixed output voltage options
  • Output current capabilities from 1.5 A to 4 A
  • Automatic power save mode for enhanced efficiency at light loads
  • Excellent transient response
  • Pre-bias startup protection
  • Internal soft start functionality
  • Ultra-small packaging options (SOT-23-5, MLPD, QFN)
  • Low output noise across load range
  • High efficiency (up to 95%)
  • 100% duty cycle low dropout operation on select models
  • Output short circuit protection
  • Thermal shutdown protection
Applications
  • Industrial equipment
    • Test and measurement instruments
    • Control systems
    • Automation equipment
    • Industrial IoT devices
    • Sensing and monitoring systems
  • Communication systems
    • Network switches and routers
    • Base stations
    • Communication modules
    • 5G infrastructure components
  • Consumer electronics
    • Smart home devices
    • Digital TVs and set-top boxes
    • Gaming consoles
    • Audio equipment
  • Portable electronics
    • Smartphones and tablets
    • Wearable devices
    • Digital cameras
    • Portable audio players
    • Bluetooth headsets and earbuds
  • Computing systems
    • Notebook and desktop computers
    • Solid-state drives (SSDs)
    • Graphics processing units
    • Motherboards and server applications
    • Point-of-load power conversion

SC12x Low Voltage Synchronous Boost Regulators

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BST ADJ/1.8V 80MA SOT23-6SC120SKTRTIC REG BST ADJ/1.8V 80MA SOT23-631598 - Immediate$1.13View Details
IC REG BST ADJ/3.3V 900MA 6MLPDSC121ULTRTIC REG BST ADJ/3.3V 900MA 6MLPD950 - Immediate$1.26View Details

SCxxx Synchronous Step-Down Switching Regulators

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BUCK PROG 2A 16MLPQSC183CULTRTIC REG BUCK PROG 2A 16MLPQ11521 - Immediate$1.20View Details
IC REG BUCK ADJ 4A 16MLPQSC186ULTRTIC REG BUCK ADJ 4A 16MLPQ16255 - Immediate$2.18View Details
IC REG BUCK PROG 4A 16MLPQSC187ULTRTIC REG BUCK PROG 4A 16MLPQ2965 - Immediate$1.93View Details
IC REG BUCK PROG 1A 10MLPSC194AMLTRTIC REG BUCK PROG 1A 10MLP0 - Immediate$3.41View Details
IC REG BUCK PROG 1A 10MLPSC194BMLTRTIC REG BUCK PROG 1A 10MLP0 - Immediate$4.71View Details
IC REG BUCK PROG 500MA 8MLPQSC195ULTRTIC REG BUCK PROG 500MA 8MLPQ3982 - Immediate$1.26View Details
DC DC CONVERTER 0.8-3.3VSC202AMLTRTDC DC CONVERTER 0.8-3.3V18315 - Immediate$2.05View Details

SC189 Synchronous Step-Down Switching Regulators

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BUCK 1V 1.5A SOT23-5SC189ASKTRTIC REG BUCK 1V 1.5A SOT23-55978 - Immediate$0.89View Details
IC REG BUCK 1V 1.5A 6MLPDSC189AULTRTIC REG BUCK 1V 1.5A 6MLPD1345 - Immediate$0.94View Details
IC REG BUCK 1.1V 1.5A SOT23-5SC189BSKTRTIC REG BUCK 1.1V 1.5A SOT23-50 - Immediate$0.38View Details
IC REG BUCK 1.1V 1.5A 6MLPDSC189BULTRTIC REG BUCK 1.1V 1.5A 6MLPD2825 - Immediate$0.87View Details
IC REG BUCK 1.2V 1.5A SOT23-5SC189CSKTRTIC REG BUCK 1.2V 1.5A SOT23-53091 - Immediate$0.87View Details
IC REG BUCK 1.2V 1.5A 6MLPDSC189CULTRTIC REG BUCK 1.2V 1.5A 6MLPD22256 - Immediate$0.87View Details
IC REG BUCK 1.5V 1.5A SOT23-5SC189HSKTRTIC REG BUCK 1.5V 1.5A SOT23-54250 - Immediate$0.89View Details
IC REG BUCK 1.5V 1.5A 6MLPDSC189HULTRTIC REG BUCK 1.5V 1.5A 6MLPD0 - Immediate$0.39View Details
IC REG BUCK 1.8V 1.5A SOT23-5SC189LSKTRTIC REG BUCK 1.8V 1.5A SOT23-55572 - Immediate$0.89View Details
IC REG BUCK 1.8V 1.5A 6MLPDSC189LULTRTIC REG BUCK 1.8V 1.5A 6MLPD6403 - Immediate$0.87View Details
IC REG BUCK 2V 1.5A 6MLPDSC189NULTRTIC REG BUCK 2V 1.5A 6MLPD0 - Immediate$0.42View Details
IC REG BUCK 2.5V 1.5A 6MLPDSC189TULTRTIC REG BUCK 2.5V 1.5A 6MLPD0 - Immediate$0.45View Details
IC REG BUCK 2.5V 1.5A SOT23-5SC189YSKTRTIC REG BUCK 2.5V 1.5A SOT23-52841 - Immediate$0.89View Details
IC REG BUCK 3.3V 1.5A SOT23-5SC189ZSKTRTIC REG BUCK 3.3V 1.5A SOT23-52257 - Immediate$0.91View Details
IC REG BUCK 3.3V 1.5A 6MLPDSC189ZULTRTIC REG BUCK 3.3V 1.5A 6MLPD2331 - Immediate$0.94View Details

SC211 Tiny 1.2 A Synchronous Buck Regulators

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BUCK ADJ 1.2A 6WLCSPSC21150ACSTRTIC REG BUCK ADJ 1.2A 6WLCSP8455 - Immediate$0.54View Details
IC REG BUCK ADJ 1.2A 6WLCSPSC21150AVCSTRTIC REG BUCK ADJ 1.2A 6WLCSP0 - Immediate$0.68View Details
IC REG BUCK ADJ 1.2A 6MLPDSC21152AULTRCIC REG BUCK ADJ 1.2A 6MLPD2900 - Immediate$1.13View Details
IC REG BUCK ADJ 1.2A 6MLPDSC21154AULTRCIC REG BUCK ADJ 1.2A 6MLPD2464 - Immediate$1.48View Details
IC REG BUCK ADJ 1.2A 6MLPDSC21156AULTRCIC REG BUCK ADJ 1.2A 6MLPD0 - Immediate$0.86View Details

SC28x Dual Channel Synchronous Step-Down Regulators

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BUCK PROG 1.8A DL 18MLPQSC283WLTRTIC REG BUCK PROG 1.8A DL 18MLPQ17361 - Immediate$2.56View Details
IC REG BUCK PROG 4A DL 28MLPQSC286ULTRTIC REG BUCK PROG 4A DL 28MLPQ0 - Immediate$4.24View Details
IC REG BUCK PROG 1.8A DL 20MLPQSC284ULTRTIC REG BUCK PROG 1.8A DL 20MLPQ5998 - Immediate$2.34View Details

TS3001x High Efficiency Current-Mode Synchronous Buck DC/DC Converters

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BUCK ADJ 1A 16QFNTS30011-M000QFNRIC REG BUCK ADJ 1A 16QFN52217 - Immediate$1.66View Details
IC REG BUCK 3.3V 1A 16QFNTS30011-M033QFNRIC REG BUCK 3.3V 1A 16QFN87365 - Immediate$1.65View Details
IC REG BUCK 5V 1A 16QFNTS30011-M050QFNRIC REG BUCK 5V 1A 16QFN6432 - Immediate$1.68View Details
IC REG BUCK 3.3V 2A 16QFNTS30012-M033QFNRIC REG BUCK 3.3V 2A 16QFN6654 - Immediate$1.75View Details
IC REG BUCK 5V 2A 16QFNTS30012-M050QFNRIC REG BUCK 5V 2A 16QFN10027 - Immediate$1.87View Details
IC REG BUCK ADJ 3A 16QFNTS30013-M000QFNRIC REG BUCK ADJ 3A 16QFN95459 - Immediate$2.66View Details
IC REG BUCK 3.3V 3A 16QFNTS30013-M033QFNRIC REG BUCK 3.3V 3A 16QFN29052 - Immediate$2.58View Details
IC REG BUCK 5V 3A 16QFNTS30013-M050QFNRIC REG BUCK 5V 3A 16QFN15884 - Immediate$2.58View Details

TS3004x High Efficiency Current-Mode Synchronous Buck Converters

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BUCK ADJ 1A 16QFNTS30041-M000QFNRIC REG BUCK ADJ 1A 16QFN36421 - Immediate$1.85View Details
IC REG BUCK 3.3V 1A 16QFNTS30041-M033QFNRIC REG BUCK 3.3V 1A 16QFN8044 - Immediate$2.24View Details
IC REG BUCK 5V 1A 16QFNTS30041-M050QFNRIC REG BUCK 5V 1A 16QFN7916 - Immediate$1.85View Details
IC REG BUCK ADJ 2A 16QFNTS30042-M000QFNRIC REG BUCK ADJ 2A 16QFN20266 - Immediate$1.91View Details
IC REG BUCK 3.3V 2A 16QFNTS30042-M033QFNRIC REG BUCK 3.3V 2A 16QFN5572 - Immediate$1.85View Details

SC508ULTRT EcoSpeed® DC/DC Buck Controller

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG CTRLR BUCK 20MLPQSC508ULTRTIC REG CTRLR BUCK 20MLPQ3000 - Immediate$3.53View Details
Published: 2025-10-02