RT9168/A
200mA/500mA Fixed Output Voltage LDO Regulator
General Description
Features
z Stable with Low-ESR Output Capacitor
z Low Dropout Voltage (220mV at 200mA)
z Low Operation Current −80μA Typical
z Shutdown Function
The RT9168/A is a 200mA/500mA low dropout and
micropower regulator suitable for portable applications.
The output voltages range from 1.5V to 5.0V in 100mV
increments and 2% accuracy. The RT9168/Ais designed
for use with very low ESR capacitors. The output remains
stable even with a 1μF ceramic output capacitor.
z Low Temperature Coefficient
z Current and Thermal Limiting
z Custom Voltage Available
The RT9168/Auses an internal PMOS as the pass device,
which does not cause extra GND current in heavy load
and dropout conditions. The shutdown mode of nearly
zero operation current makes the IC suitable for battery-
powered devices. Other features include current limiting
and over temperature protection. The SOT-23-5 and
SOP-8 packages are also available for larger power
dissipation and design flexibility.
z SOT-23-5 and SOP-8 Packages
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Cellular Telephones
z Laptop, Notebook, and Palmtop Computers
z Battery-powered Equipment
z Hand-held Equipment
Ordering Information
RT9168/A
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.
Package Type
BR : SOT-23-5
S : SOP-8
SH : SOP-8, High Shutdown
Pin Configurations
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
(TOP VIEW)
Output Voltage
15 : 1.5V
16 : 1.6V
:
1
2
3
5
VOUT
GND
VIN
NC
:
EN
4
49 : 4.9V
50 : 5.0V
RT9168/A-
CBR
500mA Output Current
200mA Output Current
SOT-23-5
Note :
8
VOUT
GND
GND
NC
VIN
2
3
4
7
6
5
RichTek Pb-free and Green products are :
`RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
GND
GND
EN/EN
`Suitable for use in SnPb or Pb-free soldering processes.
`100%matte tin (Sn) plating.
RT9168/A-
RT9168/A-
CS
CSH
SOP-8
DS9168/A-15 March 2007
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
