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DC/DC Power Solution
RT9035
Maximum 3A, Ultra Low Dropout Regulator
General Description

The RT9035 is a high performance positive voltage regulator designed for use in applications requiring very low Input voltage and extremely low dropout voltage at up to 3A. It operates with a VIN as low as 1.0V and VDD voltage 3V with programmable output voltage as low as 0.8V. The RT9035 features ultra low dropout that is ideal for applications where VOUT is very close to VIN. Additionally, it has an enable pin to further reduce power dissipation while shutdown and provides excellent regulation over variations in line, load and temperature. The RT9035 provides a power good signal to indicate if the voltage level of VOUT reaches 90% of its rating value. The RT9035 is available in the WQFN-20L 4x4 package with 1.05V, 1.2V, 1.5V, 1.8V and 2.5V internally preset outputs that are also adjustable by using external resistors.
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Ordering Info


Note :
Richtek Green products are :
► RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
► Suitable for use in SnPb or Pb-free soldering processes.
► 100% matte tin (Sn) plating.

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Features

• Maximum 3A Low-Dropout Voltage Regulator
• High Accuracy Output Voltage 2%
• Dropout Voltage Typical 270mV at 3A
• Power Good Output
• Output Voltage Pull Low Resistance when Disable
• Thermal and Over Current Protection
• RoHS Compliant and Halogen Free
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Application

• Note Book PC Applications
• Motherboard Applications
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Pin Configurations


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WQFN-20L 4x4

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Typical Applications Circuit



                Figure 1. Fixed Voltage Regulator




              Figure 2. Adjustable Voltage Regulator

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