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The RT5133B is a highly-integrated power management IC, which includes eight LDOs for camera sensor applications, including 2-Ch DVDD, 4-Ch AVDD, 1-Ch VIO, 1-Ch VAF and three GPOs for portable devices.The output voltages, soft-start time and protections of regulators can be controlled by writing the registers through I<sup>2</sup>C.The LDO1 can be used to supply power to IO (VIO). The LDO2 can be used to supply power to auto focus unit (VAF). The LDO3 to LDO6 can be used to supply power to AVDD. The LDO7 and LDO8 can be used to supply power to DVDD. Three GPO output pins can control external device or be reused for another purpose.The RT5133B is available in a WL-CSP1.84x1.84-25(BSC) package. The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 85°C.
RT5133B Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Top - Hardware Enable Pin - I<sup>2</sup>C Controlled Interface - Programmable Channel Power-On/Off - IRQB Output for Indication - Input Undervoltage Protection - Over-Temperature Protection </li><li>LDO - LDO1/2 - Two Low Dropout Regulators for V1018 and Auto Focus Applications - Wide 2.8V to 5V Operating Input Range - Programmable Output Voltage by I<sup>2</sup>C - High PSRR: 70dB @ 1KHz - 300mA Low Dropout Voltage Regulators - LDO3/4/5/6 - Four Low Dropout Regulators for AVDD Applications - Wide 2.8V to 5V Operating Input Range - Programmable Output Voltage by I2C - High PSRR: 85dB @ 1KHz - 300mA Low Dropout Voltage Regulators - LDO7/8 - 2 Low Dropout Regulators for AVDD Applications - Wide 1.1V to 5V Operating Input Range - Programmable Output Voltage by I2C - High PSRR: 75dB @ 1KHz - 600mA/1000mA Low Dropout Voltage Regulators </li><li>GPO - Three GPO Pins to Control a Single Regulator </li></ul></div>
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RT5133B Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Cellular Telephones </li><li>Personal Information Appliances </li><li>Tablet PCs </li><li>Portable Instruments </li></ul></div>
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