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RT9403C

Richtek Technology
Part Number RT9403C
Manufacturer Richtek Technology
Description High Precision Reference Voltage Generator
Published May 26, 2016
Detailed Description RT9403A/B/C I2C Programmable High Precision Reference Voltage Generator General Description Features The RT9403A/B/C...
Datasheet PDF File RT9403C PDF File

RT9403C
RT9403C

Overview
RT9403A/B/C I2C Programmable High Precision Reference Voltage Generator General Description Features The RT9403A/B/C 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 RT9403A/B/C features adjustable output slew rate, low switching glitch and adequate driving capability.
The RT9403A/B/C is available in SOT-23-8 package.
Ordering Information RT9403A/B/C Package Type V8 : SOT-23-8 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 Lead Plating System Applications G : Green (Halogen Free and Pb Free) z Power Supply Adjustment for Motherboard and Graphic Address Bit [A1,A0] A : [0,1] Card B : [1,0] z Low Voltage, High Accuracy Reference Voltage Circuit C : [1,1] Note : Richtek products are : Pin Configurations (TOP VIEW) S3/EN VOUT3 VOUT2 VOUT1 ` RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
87 6 5 VDD GND SCL SDA Marking Information RT9403AGV8 01=DNN 01= : Product Code DNN : Date Code 2 34 SOT-23-8 RT9403BGV8 02=DNN 02= : Product Code DNN : Date Code RT9403CGV8 04=DNN 04= : Product Code DNN : Date Code DS9403A/B/C-00 May 2011 www.
richtek.
com 1 RT9403A/B/C Typical Application Circuit Data Bus Line Clock Bus Line 3.
3V/5V 5V RT9403A/B/C 1 VDD CIN S3/EN 4 SDA 3 SCL 8 S3/EN VOUT1 5 VOUT2 6 VOUT3 7 GND 2 VIN1 REFIN DC/DC COUT1 Converter VIN2 REFIN DC/DC COUT2 Converter VIN3 REFIN DC/DC COUT3 Converter V1 V2 V3 Functional Pin Description Pin No.
P...


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