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RT9183 Datasheet(PDF) 1 Page - Richtek Technology Corporation

Part No. RT9183
Description  Ultra Low Dropout 1.5A Linear Regulator
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Maker  RICHTEK [Richtek Technology Corporation]
Homepage  http://www.richtek.com

RT9183 Datasheet(HTML) 1 Page - Richtek Technology Corporation

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DS9183-14 April 2008
Ultra Low Dropout 1.5A Linear Regulator
General Description
The RT9183 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 RT9183 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 RT9183 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.
330mV Dropout @ 1.5A
380uA Low Ground Pin Current
Excellent Line and Load Regulation
0.1uA Quiescent Current in Shutdown Mode
Guaranteed 1.5A Output Current
Fixed Output Voltages : 1.2V to 3.3V
Adjustable Output Voltage from 0.8V to 4.5V
Over-Temperature/Over-Current Protection
RoHS Compliant and 100% Lead (Pb)-Free
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.
Ordering Information
Battery-Powered Equipment
Mother Board/Graphic Card
Peripheral Cards
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
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
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

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