RT9194 Datasheet, PDF (1/10 Pages) Richtek Technology Corporation – Low-Dropout Linear Regulator Controller with PGOOD Indication

RT9194
Low-Dropout Linear Regulator Controller with PGOOD
Indication
General Description
Features
The RT9194 is a low-dropout voltage regulator controller
with a specific PGOOD indicating scheme, it acts as a
power supervisor of the power regulated. The part could
drive an external N-Channel MOSFET for various
applications accordingly; especially, the part is operated
with V_CC power ranging from 4.5V to 13.5V. With such a
topology, it's with advantages of flexible and cost-effective.
The part comes to a small footprint package of SOT-23-6.
z 4.5V to 13.5V Operation Voltage
z High Accuracy ± 2% 0.8V Voltage Reference
z Quick Transient Response
z Power Good Indicator with Delay
z Enable Control
z Compliant with Intel “Grantsdale Chipset Platform
Design Guide” Specification
z Small Footprint Package SOT-23-6
z RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT9194
Package Type
E : SOT-23-6
Note :
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
RichTek Pb-free and Green products are :
`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.
`100%matte tin (Sn) plating.
Marking Information
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.
Applications
z Special Designed for Intel^® Grantsdale platform
FSB_VTT power regulation
z Processor Power-Up Sequening
z Notebook and laptop PC
z Other Power regulation with Power Good indication.
Pin Configurations
(TOP VIEW)
VCC DRI PGOOD
65 4
123
EN GND FB
SOT-23-6
Note : There is no pin1 indicator on top mark for SOT-23-6
type, and pin 1 will be lower left pin when reading top mark
from left to right.
Typical Application Circuit
V_CC
V_IN
Chip Enable
1 _EN
Ccc
VCC ⁶
2
GND
RT9194
DRI ⁵
Q1
3 _FB
PGOOD ⁴
R_PGOOD
R1
PGOOD
C_IN
V_OUT
C_OUT
DS9194-08 March 2007
R2
V_OUT
= 0.8 × ^{R1+ R2}
R2
www.richtek.com
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