RT9164A
1A Fixed and Adjustable Low Dropout Positive Voltage
Regulators
General Description
The RT9164A series of high performance positive voltage
regulators is designed for applications requiring low dropout
performance at fully rated current. Additionally, the RT9164A
series provides excellent regulation over variations in line
and load. Outstanding features include low dropout
performance at rated current, fast transient response,
internal current-limiting, and thermal-shutdown protection
of the output device. The RT9164A series of three terminal
regulators offers fixed and adjustable voltage options
available in space-saving SOT-223, TO-252, and TO-263
packages.
Features
Low Dropout Performance,
1.4V Max.
Full Current Rating Over Line and Temperature
Fast Transient Response
±
2% Output Voltage Accuracy
1.5V, 1.8V, 2.5V, 2.85V, 3.0V, 3.3V, and 3.5V Fixed
Adjustable Output Voltage
SOT-223, TO-252, and TO-263 Packages
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Active SCSI Termination
Low Voltage Microcontrollers
Switching Power Supply Post-Regulator
Ordering Information
RT9164A-
Package Type
G : SOT-223
L: TO-252
LR : TO-252 (R-Type)
M : TO-263
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage
Default : Adjustable
15 : 1.5V
18 : 1.8V
25 : 2.5V
28 : 2.85V
30 : 3.0V
33 : 3.3V
35 : 3.5V
Pin ConFigurations
(TOP VIEW)
3
2
1
VIN
VOUT (TAB)
ADJ/GND
SOT-223
3
2
1
VIN
VOUT (TAB)
ADJ/GND
TO-252
3
2
1
VOUT
ADJ/GND (TAB)
VIN
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.
TO-252 (R-Type)
3
2
1
VIN
VOUT (TAB)
ADJ/GND
TO-263
DS9164A-13 August 2007
www.richtek.com
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