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  Richtek Technology Electronic Components Datasheet  

RT9001 Datasheet

Ultra-Fast Transient Response LDO Regulator

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RT9001
600mA, Ultra-Fast Transient Response LDO Regulator
General Description
The RT9001 series are CMOS low dropout regulators
optimized for ultra-fast transient response. The devices are
capable of supplying 600mA of output current with a dropout
voltage of 580mV respectively.
The RT9001 series are is optimized for CD/DVD-ROM,
www.DataSCheDet/4RUW.coomr wireless communication supply applications.
The RT9001 regulators are stable with output capacitors
as low as 1μF. The other features include ultra low dropout
voltage, high output accuracy, current limiting protection,
and high ripple rejection ratio.
The devices are available in fixed output voltages range of
1.2V to 4.5V with 0.1V per step. The RT9001 regulators
are available in 3-lead SOT-223 package.
Ordering Information
RT9001-
Package Type
G : SOT-223
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage
12 : 1.2V
13 : 1.3V
:
45 : 4.5V
Features
z Low Quiescent Current (Typically 220μA)
z Guaranteed 600mA Output Current
z Low Dropout Voltage : 580mV at 600mA
z Wide Operating Voltage Ranges : 3V to 5.5V
z Ultra-Fast Transient Response
z Tight Load and Line Regulation
z Current Limiting Protection
z Thermal Shutdown Protection
z Only low-ESR Ceramic Capacitor Required for
Stability
z Custom Voltage Available
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z CD/DVD-ROM, CD/RW
z Wireless LAN Card/Keyboard/Mouse
z Battery-Powered Equipment
z XDSL Router
z PCMCIA Card
Pin Configurations
(TOP VIEW)
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 23
GND VOUT VIN
(TAB)
SOT-223
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.
DS9001-04 March 2007
www.richtek.com
1


  Richtek Technology Electronic Components Datasheet  

RT9001 Datasheet

Ultra-Fast Transient Response LDO Regulator

No Preview Available !

RT9001
Typical Application Circuit
VIN
CIN
1uF
RT9001
VIN VOUT
GND
VOUT
COUT
1uF
Note: To prevent oscillation, a 1μF minimum X7R or X5R dielectric is strongly recommended if ceramics are used
as input/output capacitors. When using the Y5V dielectric, the minimum value of the input/output capacitance
that can be used for stable over full operating temperature range is 3.3μF. (see Application Information
www.DataSheet4U.cSoemction for further details)
Functional Pin Description
Pin Name
VIN
VOUT
GND
Pin Function
Supply Input
Regulator Output
Common Ground
Function Block Diagram
VIN
Current
Limiting
Sensor
Thermal
Shutdown
Error
Amplifier
-
1.2V
Reference
VOUT
GND
www.richtek.com
2
DS9001-04 March 2007


Part Number RT9001
Description Ultra-Fast Transient Response LDO Regulator
Maker Richtek Technology
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RT9001 Datasheet PDF






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