RT9163
500mA Low Dropout Positive Voltage Regulator
General Description
Features
z Low Dropout, Maximum 1.4V at 500mA
The RT9163 is a positive low dropout regulator designed
for applications requiring low dropout performance at full
rated current. The device is available in fixed output
voltage of 3.3V, 3.5V, and 5.0V. The RT9163 provides
excellent regulation over line, load, and temperature
variations.
z Fast Transient Response
z
2% Total Output Regulation
z 0.4% Line Regulation
z 0.4% Load Regulation
z TO-92, SOT-89, SOT-223, and TO-252 Packages
z RoHS Compliant and 100% Lead (Pb)-Free
The other features include low dropout performance at a
maximum of 1.4V at 500mA, fast transient response,
internal current limiting, and thermal shutdown protection
of the output devices. The RT9163 is a three-terminal
regulator available in surface mount SOT-89, SOT-223,
and TO-252 packages.
Applications
z 5V to 3.3V Linear Regulator
z Low Voltage Microcontroller, DSP,.... etc. Power Supply
z Linear Regulator for LANCard and CD-ROM
Ordering Information
RT9163-
Pin Configurations
(TOP VIEW)
Package Type
ZL : TO-92 (L-Type)
X : SOT-89
XL : SOT-89 (L-Type)
L : TO-252
G : SOT-223 (Type-I)
GL : SOT-223 (Type-II)
GT : SOT-223 Type-III)
GF : SOT-223 (Type-IV)
VOUT
GND
VIN
3
2
1
RT9163-
TO-92
CZL
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
1
2
3
1
2
3
Output Voltage
33 : 3.3V
35 : 3.5V
GND
(TAB)
VIN
(TAB)
VOUT
VIN
CX
GND
VOUT
CXL
RT9163-
SOT-89
RT9163-
SOT-89
50 : 5.0V
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.
1
2
3
1
2
3
GND
(TAB)
GND
(TAB)
VIN
CG
VOUT
Marking Information
VOUT
VIN
CL
RT9163-
SOT-223
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.
RT9163-
TO-252
DS9163-24 March 2007
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
