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RT5133A 是高集成度的电源管理 IC,其内含 8 个线性稳压器,可为便携式产品的摄像模组提供 2 个 DVDD、4 个 AVDD、1 个 VIO、1 个 VAF 电源供应和 3 个 GPO 端子,它们的输出电压、软启动时间和保护特性均可经由 I2C 接口写入其寄存器的数据进行控制。在实际应用中,LDO1 可为 IO 部分供电(VIO),LDO2 可为自动聚焦单元供电(VAF),LDO3~LDO6 可为 AVDD 供电,LDO7/8 可为 DVDD 供电,3 个 GPO 端子可对外部设备进行控制,亦可改作他用。RT5133A 的封装形式为 WL-CSP-25B 1.84x1.84 (BSC)。
全局►硬件使能端►I2C 控制接口►可程控各通道开/关顺序►IRQB 输出►输入欠压保护►过热保护
线性稳压器(LDO)►LDO1/2 ♦为 VIO18 和自动聚焦电路供电 ♦输入电压范围:2.8V~5V ♦输出电压 I2C 可调 ♦PSRR = 70dB@1kHz ♦负载能力:300mA►LDO3/4/5/6 ♦为 AVDD 供电 ♦输入电压范围:2.8V~5V ♦输出电压 I2C 可调 ♦PSRR = 85dB@1kHz ♦负载能力:300mA►LDO7/8 ♦为 DVDD 供电 ♦输入电压范围:1.1V~5V ♦输出电压 I2C 可调 ♦PSRR = 75dB@1kHz ♦负载能力:600mA/1000mA
GPO►3 个端子,可用于控制其他调节器
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