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SC220Q

Semtech
Part Number SC220Q
Manufacturer Semtech
Description Synchronous Step-Down Regulator
Published Feb 9, 2013
Detailed Description SC220 x SC220Q POWER MANAGEMENT Features  20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator Description The...
Datasheet PDF File SC220Q PDF File

SC220Q
SC220Q

Overview
SC220 x SC220Q POWER MANAGEMENT Features  20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator Description The SC220/Q is a 20MHz X-EMI™(1)-enabled step-down regulator optimized for power 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.
The SC220/Q uses a unique constant frequency, selfoscillating control loop architecture to provide excellent transient performance.
Under light loads, the device operates in Power Save mode(PSAVE) maintaining a typical quiescent current of 19µA.
At moderate to heavy loads, this part operates in PWM mode with a constant switching frequency of 20MHz.
This high switching frequency offers the advantages of using small and low cost external components like a 1µF external capacitor and a small 220nH inductor (including X-EMI TM PCB trace inductors).
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