RT9167 Datasheet, PDF (1/13 Pages) Richtek Technology Corporation – Low-Noise, Fixed Output Voltage,300mA/500mA LDO Regulator

RT9167/A
Low-Noise, Fixed Output Voltage,300mA/500mA LDO Regulator
General Description
Features
The RT9167/A is a 300mA/500mA low dropout and low
noise micropower regulator suitable for portable
applications. The output voltages range from 1.5V to 5.0V
in 100mV increments and 2% accuracy. The RT9167/A is
designed for use with very low ESR capacitors. The output
remains stable even with 1μF ceramic output capacitor.
The RT9167/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 a reference bypass pin to
improve low noise performance, current limiting, and over
temperature protection.
Ordering Information
RT9167/A-
z Stable with Low-ESR Output Capacitor
z Low Dropout Voltage (350mV @ 300mA)
z Low Operation Current −80μA Typical
z Shutdown Function
z Low Noise Output
z Low Temperature Coefficient
z Current and Thermal Limiting
z Custom Voltage Available
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
Package Type
B : SOT-23-5
Marking Information
BR : SOT-23-5 (R-Type)
For marking information, contact our sales representative
S : SOP-8
directly or through a RichTek distributor located in your
Operating Temperature Range
area, otherwise visit our website for detail.
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Pin Configurations
Output Voltage
15 : 1.5V
16 : 1.6V
:
49 : 4.9V
50 : 5.0V
2H : 2.85V
500mA Output Current
300mA Output Current
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.
(TOP VIEW)
VIN 1 5 ^VOUT
GND 2
EN 3 4 BP
SOT-23-5
VOUT 1 5 BP
GND 2
VIN 3 4 EN
SOT-23-5 (R-Type)
EN
VIN
VOUT
BP
8
2
7
3
6
4
5
SOP-8
GND
GND
GND
GND
DS9167/A-26 March 2007
www.richtek.com
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