RT9401A Datasheet, PDF (1/8 Pages) Richtek Technology Corporation – 5Bit VID Reference Generator

RT9401A/B
5Bit VID Reference Generator
General Description
Features
The RT9401A/B are digital to analog converters which
generate a reference voltage for Intel VR10.x/AMD K8
5-bit VID code respectively. The parts are proposed to
pair with a series of RichTek’ s general purpose PWM
controllers dedicated for the desktop microprocessor core
power voltage regulation. The reference voltage is within
1% high accuracy. These parts use a small footprint
package of SOT-23-8.
Ordering Information
RT9401A/B
Package Type
V8 : SOT-23-8
z RT9401A Support 5bit DAC Voltage Conforming to
Intel VRD10.x VID Table
z RT9401B Support 5bit DAC Voltage Conforming to
AMD K8 VID Table
z 1% High Accuracy of V_REF
z Small Footprint Package of SOT-23-8
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Desktop/Motherboard Microprocessor Core Power
Regulation
z High Accuracy and Programmable Voltage Power
Regulation
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
K8
VR10.X
Pin Configurations
(TOP VIEW)
Note :
RichTek Pb-free and Green products are :
87 6 5
`RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
1234
`Suitable for use in SnPb or Pb-free soldering processes.
`100%matte tin (Sn) plating.
SOT-23-8
Marking Information
Note : There is no pin1 indicator on top mark for SOT-23-8
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
type, and pin 1 will be lower left pin when reading top mark
from left to right.
area, otherwise visit our website for detail.
Typical Application Circuit
RT9401A/B
1 _VID2
VID3 ⁸
2 _VID1
VID4 ⁷
3
VDA
5V
4 _VDD
CL
GND ⁶
VID0 ⁵
DS9401A/B-06 March 2007
www.richtek.com
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