RT9176
1.5A Fixed and Adjustable Low Dropout Positive Voltage
Regulators
General Description
The RT9176 series of high performance positive voltage
regulators is designed for applications requiring low dropout
performance at fully rated current. Additionally, the RT9176
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 RT9176 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, 1.5V Max.
Full Current Rating Over Line and Temperature
Fast Transient Response
±
2% Output Voltage Accuracy
1.5V, 1.8V, 2.5V, 2.85V, 3.3V, and 3.5V Fixed and
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
RT9176-
Package Type
G : SOT-223
L: TO-252
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
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
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.
3
2
1
TO-252
VIN
VOUT (TAB)
ADJ/GND
TO-263
DS9176-11 March 2007
www.richtek.com
1