Switching Regulators
  • SC4525D
    • 18V, 3A, 350kHz Step-Down Switching Regulator
  • SC4525C
    • 28V 3A Step-Down Switching Regulator
  • SC4524D
    • 18V 2A Step-Down Switching Regulator
  • SC4524C
    • 28V 2A Step-Down Switching Regulator
  • SC427
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC417
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC410
    • 3A, 24V EcoSpeed® Step-Down Regulator with LDO and Ultrasonic Power Save
  • SC403B
    • 6A EcoSpeed® Integrated FET Regulator with Programmable LDO
Semtech SC122

Semtech SC122

Low Voltage Synchronous Boost Converter

The SC122 is a high efficiency, low noise, synchronous step-up DC-DC converter. It produces a fixed 3.3V output from a single cell alkaline or NiMH battery. It features an internal 1.2A switch and synchronous rectifier to achieve high efficiency and to eliminate the need for an external Schottky diode.

Features


  • Input voltage - 0.7V to 1.6V
  • Minimum start-up voltage - 0.85V
  • Output voltage fi xed at 3.3V
  • Peak input current limit - 350mA typically
  • Output current 95mA at VIN = 1.6V, 50mA at VIN = 0.9V
  • Efficiency up to 80%
  • Internal synchronous rectifier
  • Switching frequency - 1.2MHz
  • Power save (voltage hysteretic) control
  • Anti-ringing circuit
  • Operating supply current (measured at OUT) - 40μA
  • No forward conduction path during shutdown
  • MLPD-UT-6 1.5 x 2.0 x 0.6 (mm) package
  • Lead-free and halogen-free WEEE and RoHS compliant

Applications


  • Electric toothbrushes
  • Personal medical products
  • Single-cell alkaline, NiCd, or NiMH applications

Packaging

  • MLPD-UT-6 (1.5x2)

Order Codes

  • SC122ULTRT: Lead Free, Halogen-free, WEEE and RoHS Compliant, 3000 pcs, Tape and Reel only