RT9184A
Dual, Ultra-Fast Transient Response, 500mA LDO Regulator
General Description
Features
Low Quiescent Current (Typically 440μA)
μ
The RT9184A series are an efficient, precise dual-channel
CMOS LDO regulator optimized for ultra-low-quiescent
applications. Both regulator outputs are capable of sourcing
500mA of output current.
Guaranteed 500mA Output Current
Low Dropout Voltage : 600mV at 500mA
Wide Operating Voltage Ranges : 2.8V to 5.5V
Ultra-Fast Transient Response
Tight Load and Line Regulation
Current Limiting Protection
Thermal Shutdown Protection
Only low-ESR Ceramic Capacitors Required for
Stability
Custom Voltage Available
RoHS Compliant and 100% Lead (Pb)-Free
The RT9184A's performance is optimized for CD/DVD-ROM,
CD/RW or wireless communication supply applications.
The RT9184A 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 RT9184A regulators are available in fused SOP-8
package. Key features include current limit, thermal
shutdown, fast transient response, low dropout voltage,
high output accuracy, current limiting protection, and high
ripple rejection ratio.
Ordering Information
RT9184APackage Type
S : SOP-8
Applications
CD/DVD-ROM, CD/RW
Wireless LAN Card/Keyboard/Mouse
Battery-Powered Equipment
XDSL Router
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Note :
The output 2 is designated to larger than or equal to
output 1 in voltage code order below, i.e. VOUT2 ≥ VOUT1.
For example, the part number of RT9184A-FNCS is
assigned for 2.5VOUT1/3.3VOUT2, contrary to the part
number of RT9184A-NFCS is opposite to the rule and
doesn't exist in the system.
Pin Configurations
(TOP VIEW)
VOUT1
8
GND
VIN1
2
7
GND
VOUT2
3
6
GND
VIN2
4
5
GND
Output 2
Output 1
Voltage Code for Both Outputs :
2: 1.2V
A: 2.0V
K: 3.0V
U: 4.0V
3: 1.3V
B: 2.1V
L: 3.1V
V: 4.1V
4: 1.4V
C: 2.2V
M: 3.2V
W: 4.2V
SOP-8
:
:
9: 1.9V
J: 2.9V
:
T: 3.9V
:
Z: 4.5V
RichTek products are :
RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
DS9184A-09 April 2011
www.richtek.com
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