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LT8653S - Synchronous Step-Down Silent Switcher

Description

n Silent Switcher®2 Architecture n Ultralow EMI on Any PCB n Eliminates PCB Layout Sensitivity n Internal Bypass Capacitors Reduce Radiated EMI n Optional Spread Spectrum Modulation n 2A DC from Each Channel Simultaneously n Up to 3A on Either Channel n Ultralow Quiescent Current Burst Mode® Operat

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Full PDF Text Transcription

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LT8653S Dual Channel 2A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2µA Quiescent Current FEATURES DESCRIPTION n Silent Switcher®2 Architecture n Ultralow EMI on Any PCB n Eliminates PCB Layout Sensitivity n Internal Bypass Capacitors Reduce Radiated EMI n Optional Spread Spectrum Modulation n 2A DC from Each Channel Simultaneously n Up to 3A on Either Channel n Ultralow Quiescent Current Burst Mode® Operation n 6.2μA IQ Regulating 12VIN to 5VOUT1 and 3.3VOUT2 n Output Ripple: <10mVP-P n Optional External VC Pin: Fast Transient Response n Forced Continuous Mode n High Efficiency at High Frequency n 94.1% Efficiency at 1A, 5VOUT from 12VIN at 2MHz n Pin-Selectable Fixed Output Voltages: 5V, 3.3V, 1.8V n Fast Minimum Switch-On Time: 30ns n Wide Input Voltage Range: 3.
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