RT9194
Low-Dropout Linear Regulator Controller with PGOOD
Indication
General Description
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.
Features
4.5V to 13.5V Operation Voltage
High Accuracy
±
2% 0.8V Voltage Reference
Quick Transient Response
Power Good Indicator with Delay
Enable Control
Compliant with Intel
“Grantsdale
Chipset Platform
Design Guide” Specification
Small Footprint Package
SOT-23-6
RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT9194
Package Type
E : SOT-23-6
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Applications
Special Designed for Intel
®
Grantsdale platform
FSB_VTT power regulation
Processor Power-Up Sequening
Notebook and laptop PC
Other Power regulation with Power Good indication.
Note :
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.
Pin Configurations
(TOP VIEW)
VCC
6
1
DRI PGOOD
5
2
GND
4
3
FB
Marking Information
EN
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.
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
Ccc
1
2
3
EN
GND
FB
RT9194
VCC
DRI
6
5
4
R
PGOOD
C
IN
Q1
V
OUT
Chip Enable
PGOOD
R1
PGOOD
C
OUT
R2
V
OUT
=
0.8
×
DS9194-08 March 2007
R1
+
R2
R2
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
