Switching Regulators
  • SC120
  • Low Voltage Synchronous Boost Converter
  • SC121
  • Low Voltage Synchronous Boost Regulator
  • SC122
  • Low Voltage Synchronous Boost Converter
  • SC173
  • 3A EcoSpeed™ Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
  • SC174
  • 4A EcoSpeed™ Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
  • SC403
  • 6A EcoSpeedTM Integrated FET Regulator with Programmable LDO
  • SC417
  • 10A EcoSpeed™ Integrated FET Regulator with Programmable LDO
  • SC427
  • 10A EcoSpeed™ Integrated FET Regulator with Programmable LDO
  • SC561
  • Dual Output Low Noise LDO Linear Regulator
  • SC810
  • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
  • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech SC189

Semtech SC189

2.5MHz, 1.5A Synchronous Step Down Switching Regulator in MLPD2X2

The SC189 is a high efficiency, synchronous step-down regulator providing up to 1.5A output current in either an ultra-small 2mm x 2mm, low profile package or a low cost SOT23-5 package.

Features


  • VIN Range: 2.9 – 5.5V
  • VOUT Options: 1.0 - 3.3V
  • Up to 1.5A Output Current
  • Ultra-Small Footprint, <1mm Height Solution
  • 2.5MHz Switching Frequency
  • Efficiency Up to 93%
  • Low Output Noise Across Load Range
  • Excellent Transient Response
  • Start Up into Pre-Bias Output
  • 100% Duty-Cycle Low Dropout Operation
  • <1μA Shutdown Current
  • Internal Soft Start
  • Input Under-Voltage Lockout
  • Output Over-Voltage, Current Limit Protection
  • Over-Temperature Protection
  • Available in SOT23-5 package and 2mm x 2mm x 0.6mm thermally enhanced MLPD-UT6 package
  • -40 to +85°C Temperature Range
  • Fully WEEE and RoHS Compliant

Applications


  • Bluetooth Radios
  • DSC and PMPs
  • GPS Devices
  • xDSL Systems
  • POL Regulators
  • Portable HDD
  • Wireless LAN

Packaging

  • MLPD-UT8
  • SOT23-5

Order Codes

  • SC189xULTRT: (MLPD-UT8 package), Lead-Free, WEEE and RoHS Compliant, 3,000 pcs, Tape and Reel Only
  • SC189xSKTRT: (SOT23-5 package), Lead-Free, WEEE and RoHS Compliant, 3,000 pcs, Tape and Reel Only