[原创] Linear LT8616高效高速双路降压电源解决方案

Linear公司的LT8616是高效高速双路同步降压开关稳压电源,静态电源功耗仅为6.5uA.器件包括了开关和所有必需的电路,从而最少化外接元件.输入电压3.4V到42V,单独输入时的降压稳压器输出电流为2.5A和1.5A,输出波纹小于15mV,主要用在汽车和工业电源,以及通用电源.本文介绍了LT8616主要特性,框图,多种应用电路,以及演示板2169A主要特性,电路图,材料清单和PCB元件布局图.

The LTR8616 is a high efficiency, high speed, dual synchronousmonolithic step-down switching regulator that consumesonly 6.5μA of quiescent current with both channelsenabled. Both channels contain all switches and necessary circuitry to minimize the need for external components.

Low ripple Burst Mode operation enables high efficiencydown to very low output currents while minimizing outputripple. A SYNC pin allows synchronization to an externalclock. Internal compensation with peak current modetopology allows the use of small inductors and results infast transient response and good loop stability. The enablepins have accurate 1V thresholds and can be used toprogram undervoltage lockout. Capacitors on the TR/SSpins programs the output voltage ramp rate during startupwhile the PG pins signal when each output is within10% of the programmed output voltage. The LT8616 isavailable in a TSSOP package for high reliability.

LT8616主要特性:
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