RT9183A Datasheet, PDF (1/17 Pages) Richtek Technology Corporation – Ultra Low Dropout 1.5A Linear Regulator

RT9183A
Ultra Low Dropout 1.5A Linear Regulator
General Description
The RT9183A series are high performance linear voltage
regulators that provide ultra low dropout voltage, high output
current with low ground current. It operates from an input
of 2.3V to 5.5V and provides output current up to 1.5A
thus is suitable to drive digital circuits requiring low voltage
at high currents.
The RT9183A has superior regulation over variations in line
and load. Also it provides fast respond to step changes in
load. Other features include over current and over
temperature protection. The adjustable version has enable
pin to reduce power consumption in shutdown mode.
The devices are available in fixed output voltages of 1.2V
to 3.3V with 0.1V per step and as an adjustable device
with a 0.8V reference voltage. The RT9183A regulators
are available in 3-lead SOT-223 and TO-263 packages (fixed
output only for the 3-lead option). Also available are 5-lead
TO-263, TO-252 and fused SOP-8 packages with two
external resistors to set the output voltage ranges from
0.8V to 4.5V.
Applications
z Battery-Powered Equipment
z Mother Board/Graphic Card
z Peripheral Cards
z PCMCIA Card
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Features
z 330mV Dropout @ 1.5A
z 380uA Low Ground Pin Current
z Excellent Line and Load Regulation
z 0.1μA Quiescent Current in Shutdown Mode
z Guaranteed 1.5A Output Current
z Fixed Output Voltages : 1.2V to 3.3V
z Adjustable Output Voltage from 0.8V to 4.5V
z Over Temperature/Over Current Protection
z RoHS Compliant and 100% Lead (Pb)-Free
Ordering Information
RT9183A -
Package Type
G : SOT-223
GF : SOT-223 (F-Type)
S : SOP-8
L: TO-252
LF : TO-252 (F-Type)
M : TO-263
M5 : TO-263-5
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Output Voltage
Defauit : Adjustable
12 : 1.2V
13 : 1.3V
:
32 : 3.2V
33 : 3.3V
Only for SOP-8 and TO-263-5
H : Chip Enable High
L : Chip Enable Low
Note :
Richtek 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.
DS9183A-01 April 2011
www.richtek.com
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