RT9168/A
200mA/500mA Fixed Output Voltage LDO Regulator
General Description
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/A is designed
for use with very low ESR capacitors. The output remains
stable even with a 1μF ceramic output capacitor.
The RT9168/A uses 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.
Features
Stable with Low-ESR Output Capacitor
Low Dropout Voltage (220mV at 200mA)
Low Operation Current
−
80μA Typical
μ
Shutdown Function
Low Temperature Coefficient
Current and Thermal Limiting
Custom Voltage Available
SOT-23-5
and SOP-8 Packages
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Cellular Telephones
Laptop, Notebook, and Palmtop Computers
Battery-powered Equipment
Hand-held Equipment
Ordering Information
RT9168/A
Package Type
BR : SOT-23-5
S : SOP-8
SH : SOP-8, High Shutdown
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage
15 : 1.5V
16 : 1.6V
:
:
49 : 4.9V
50 : 5.0V
500mA Output Current
200mA Output Current
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.
Pin Configurations
(TOP VIEW)
VOUT
GND
VIN
1
2
3
4
EN
5
NC
RT9168/A-
CBR
SOT-23-5
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.
VOUT
GND
GND
NC
2
3
4
8
7
6
5
VIN
GND
GND
EN/EN
RT9168/A-
RT9168/A-
SOP-8
CS
CSH
DS9168/A-15 March 2007
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
