SC220EVB(2012) 数据手册 ( 数据表 ) - Semtech Corporation

Description
The SC220 is a 20MHz X-EMI™(1)-enabled step-down regulator optimized for powering low voltage rails from 2.7 to 5.5V input voltage. X-EMI™ inductor technology enables inductors to be drawn directly on the PC board. This technology meets or exceeds the EMI performance of chip inductors and eliminates the need for discrete inductors.

FEATUREs
■ Patented X-EMITM Inductor Technology
    ■ Enables Trace Inductors in PC Board Material
    ■ Excellent EMI Performance
■ Efficiency up to 90%
■ 19μA Quiescent Current under Very Light-load
■ Wide Input Voltage Range — 2.7V to 5.5V
■ Adjustable Output Voltage Down to 1.0V
■ Output DC Current — up to 650mA
■ High Light-load Efficiency via Automatic PSAVE Mode
■ Ultra-fast Transient Response — <1μs
■ Temperature Range — -40 to +85°C
■ Shutdown Current — 0.1μA (typical)
■ Requires Tiny 220nH Inductor
■ Requires Only 1μF of Output Capacitance
■ External Switching Frequency Synchronization
■ Protection Features Including
    ■ Over-Current Protection
    ■ Output Short-Circuit Protection
    ■ Thermal Shutdown Protection
■ Offered in SOIC 8 Lead Package
■ Lead-free, Halogen-free, and RoHS/WEEE Compliant

Applications
■ HDTV, Set Top Boxes, Gaming Consoles
■ POL Applications
■ White Goods
■ Automotive (EMI sensitive console applications)