Dual, Low-Noise, 200mA LDO Regulator
The RT9182 is a dual-channel, low noise, and low dropout
regulator supplying up to 200mA current at each channel.
The output voltage ranges from 1.5V to 3.3V in 100mV
increments and 2% accuracy by operating from a +2.7V
to +5.5V input.
The RT9182 uses an internal PMOS as the pass device,
which consumes 165uA supply current (both LDOs on)
independent of load current and dropout conditions. The
EN1 and EN2 pins control each output respectively. When
both outputs shutdown simultaneously, the chip will be
turn off and consumes nearly zero operation current
which is suitable for battery-power devices. Other
features include a current limiting, and over temperature
Up to 200mA Output Current (Each LDO)
Dual Shutdown Pins Control Each Output
Low Noise Output
Current Limiting and Thermal Protection
Short Circuit Protection
120mV Dropout at 100mA Load
Two LDOs in
RoHS Compliant and 100% Lead (Pb)-Free
Laptop, Notebook, and Palmtop Computers
ES : SOT-23-6
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
A : 2.8V (Output1), 2.8V (Output2)
B : 3.0V (Output1), 3.0V (Output2)
C : 2.8V (Output1), 3.0V (Output2)
D : 2.8V (Output1), 2.5V (Output2)
E : 2.8V (Output1), 1.8V (Output2)
F : 2.5V (Output1), 2.5V (Output2)
G : 2.5V (Output1), 1.8V (Output2)
H : 3.3V (Output1), 2.5V (Output2)
I : 3.3V (Output1), 1.8V (Output2)
J : 3.0V (Output1), 2.5V (Output2)
K : 3.0V (Output1), 1.8V (Output2)
L : 2.8V (Output1), 1.85V (Output2)
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
VOUT2 GND EN2
: There is no pin1 indicator on top mark for SOT-23-6
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.
type, and pin 1 will be lower left pin when reading top mark
from left to right.
DS9182-18 April 2008