RT9006A/B
Dual LDO Regulator with Reset Function
General Description
The RT9006A/B is an efficient, precise dual-channel CMOS
LDO regulator optimized for ultra-low-quiescent
applications. Regulators output1 and output2 are capable
of sourcing 300mA and 500mA of output current.
The RT9006’ s performance is optimized for CD/DVD-ROM
and CD/RW a supply applications.
The RT9006A/B regulators are stable with output capacitors
as low as 1μF, including current limit, thermal shutdown
protection, fast transient response, low dropout voltage,
high output accuracy, current limiting protection, and high
ripple rejection ratio. The RT9006A/B contains a reset
circuit to detect VOUT2 voltage.
The RT9006A/B regulators are available in used
SOP-8
(Exposed Pad) surface mount package.
Features
Low Quiescent Current (Typically 70μA)
μ
Wide Operating Voltage Ranges : 2.8V to 5.5V for
RT9006A
Wide Operating Voltage Ranges : 2.5V to 5.5V for
RT9006B
Ultra-Fast Transient Response
Tight Load and Line Regulation
Current Limiting Protection
Thermal Shutdown Protection
Only low-ESR Ceramic Capacitors Required for
Stability
RoHS Compliant and 100% Lead (Pb)-Free
Applications
CD/DVD-ROM, CD/RW
Wireless LAN Card/Keyboard/Mouse
Battery-Powered Equipment
XDSL Router
Ordering Information
RT9006A/B
Package Type
SP : SOP-8 (Exposed Pad-Option 2)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Operating Frequency Version
A : V
OUT1
= 1.8V, V
OUT2
= 3.3V
B : V
OUT1
= 1.5V, V
OUT2
= 3.3V
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.
Pin Configurations
(TOP VIEW)
VOUT1
VIN1
VIN2
VOUT2
2
3
4
8
7
GND
6
9
5
GND
GND
RST
CT
SOP-8 (Exposed Pad)
Typical Application Circuit
V
IN1
5V
VIN1
C1
1uF
R
RST
VOUT1
C3
1uF
V
OUT1
RT9006A/B
RST
CT
C
CT
V
IN2
5V
VIN2 VOUT2
GND
C4
1uF
V
OUT2
C2
1uF
DS9006A/B-05
September 2007
www.richtek.com
1
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
