STEVAL-ISA108V1，基于 ST1S41、4A、850kHz 固定频率 PWM 同步降压的演示板。根据 ST1S41 降压开关稳压器的要求，STEVAL-ISA108V1 演示板是一款内部补偿的 850 kHz 固定频率 PWM 同步降压转换器。 ST1S41 的工作输入电压为 4.0 V 至 18 V，同时可调节低至 0.8 V 和高达 VIN（100% 占空比）的输出电压。 ST1S41 集成了 95 m-ohm 高侧开关和 69 m-ohm 低侧同步
整流器，从而在非常低的输出电压下实现非常高的效率。带内部补偿的峰值电流模式控制提供了组件数量最少的紧凑解决方案
说明
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STEVAL-ISA108V1, Demonstration Board based on the ST1S41, 4-A, 850-kHz fixed-frequency PWM Synchronous Step-Down. asked on the ST1S41 step-down switching regulator, the STEVAL-ISA108V1 demonstration board is an internally-compensated 850 kHz fixed-frequency PWM synchronous step-down converter. The ST1S41 operates from 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to VIN(100% duty cycle). The ST1S41 integrates a 95 m-ohm high side switch and 69 m-ohm low side synchronous rectifier, resulting in very high efficiency with very low output voltages. The peak current mode control with internal compensation offers a compact solution with a minimum component count
主要特色
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Conversion Type
DC to DC
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Input Voltage
4 to 18 V
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Output Voltage
0.8 V
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Output Current
4 A
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Topology
Buck
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