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RT9403E

Richtek Technology
Part Number RT9403E
Manufacturer Richtek Technology
Description High Precision Reference Voltage Generator
Published May 26, 2016
Detailed Description RT9403D/E/F/G I2C Programmable High Precision Reference Voltage Generator General Description The RT9403D/E/F/G is a h...
Datasheet PDF File RT9403E PDF File

RT9403E
RT9403E

Overview
RT9403D/E/F/G I2C Programmable High Precision Reference Voltage Generator General Description The RT9403D/E/F/G is a high precision reference voltage generating console consisting of three I2C programmable DACs.
Each DAC output voltage is controlled by 7 digital bits that are programmed by the I2C interface.
The RT9403D/E/F/G features adjustable output slew rate, low switching glitch and adequate driving capability.
The RT9403D/E/F/G is available in SOT-23-8 package.
Ordering Information RT9403D/E/F/G Package Type V8 : SOT-23-8 Lead Plating System G : Green (Halogen Free and Pb Free) Address Bit [A1,A0] D : [0,0] E : [0,1] F : [1,0] G : [1,1] Note : Richtek 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.
Pin Configurations (TOP VIEW) Features z 5V Supply Voltage z Provide 3 Precise Voltage DACs z I2C Programmable 128-Steps Output Voltage z Output Range and Resolution ` DAC1 & DAC2 : 0.
6V to 2.
1875V, 12.
5mV/Step ` DAC3 : 1.
2V to 3.
375V, 12.
5mV (or 25mV)/Step for Different Segments z High Output Accuracy Up to 1% (VOUT ≥ 1V) z Low External Component Count z Small Footprint SOT-23-8 Package z RoHS Compliant and Halogen Free Applications z Power Supply Adjustment for Motherboard and Graphic Card z Low Voltage, High Accuracy Reference Voltage Circuit Marking Information RT9403DGV8 07=DNN 07= : Product Code DNN : Date Code RT9403EGV8 08=DNN 08= : Product Code DNN : Date Code S3/EN VOUT3 VOUT2 VOUT1 87 6 5 2 34 SOT-23-8 RT9403FGV8 11=DNN 11= : Product Code DNN : Date Code RT9403GGV8 10=DNN 10= : Product Code DNN : Date Code VDD GND SCL SDA DS9403D/E/F/G-00 September 2011 www.
richtek.
com 1 RT9403D/E/F/G Typical Application Circuit 3.
3V/5V 5V 10k Data Bus Line Clock Bus Line RT9403D/E/F/G 1 VDD CIN 10k 4.
7µF S3/EN 4 SDA 3 SCL 8 S3/EN VOUT1 5 VOUT2 6 VOUT3 7 GND 2 VIN1 REFIN DC/DC COUT1 0.
1µF Converter VIN2 REFIN DC/DC COUT2 0.
1µF C...


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