LTC1143 双路 5V/2A、3.3V/3A 转换器的典型应用电路。 LTC1143 系列是一款双路降压型开关稳压器
控制器,具有自动突发调制解调器操作功能,可在低输出电流下保持高效率。该器件由两个独立的调节器块组成,每个调节器块使用恒定关断时间电流模式架构以高达 400kHz 的开关频率驱动外部功率 MOSFET
说明
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Typical Application Circuit for LTC1143 Dual 5V/2A, 3.3V/3A Converter. The LTC1143 series is a dual step-down switching regulator controller featuring automatic Burst Modem operation to maintain high efficiencies at low output currents. This device is composed of two separate regulator blocks, each driving an external power MOSFET at switching frequencies up to 400kHz using a constant off-time current mode architecture
主要特色
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Conversion Type
DC to DC
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Input Voltage
5.2 to 14 V
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Output Voltage
3.3|5 V
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Output Current
2@5V|3@3.3V A
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Topology
Buck