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  Richtek Technology Electronic Components Datasheet  

RT9176 Datasheet

1.5A Fixed and Adjustable Low Dropout Positive Voltage Regulators

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RT9176
1.5A Fixed and Adjustable Low Dropout
Positive Voltage Regulators
General D escription
Feature s
The RT9176 series of high performance positive voltage
regulators is designedofr applications requiring low dropout
performance at fully rated currenAt.dditionally, the RT9176
series provides excellent regulation over variations in line
and loa d. Outsta nding feature s include low dropout
performance at rated current, fa st tra nsient re sponse,
internal current-limiting, and thermal-shutdown protection
of the output device. The RT9176 series of three terminal
regulators of fers f ixed a nd a djustable voltage option s
available in space-saving SOT-223, TO-252, and TO-263
packages.
Ordering Information
z Low Dropout Performance, 1.5V Max.
z Full Current Rating Over Line a nd Temperature
z Fast Transient Response
z ± 2% Output Voltage Accuracy
z 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, a nd 3.5V Fixed a nd
Adjustable Output Voltage
z SOT-223, TO-252, and TO-263 Packages
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Active SCSITermination
z Low Voltage Microcontrollers
z Switching Power Supply Post-Regulator
RT9176-
Pin ConFiguration s
Package Type
G : SOT-223
L: TO-252
M : TO-263
(TOP VIEW)
3 VIN
Operating Temperature Range
C : Commercial Standard
P : Pb Free with Commercial Standard
Output Voltage
Default : Adjustable
15 : 1.5V
18 : 1.8V
25 : 2.5V
28 : 2.85V
33 : 3.3V
35 : 3.5V
2 VOUT (TAB)
1 ADJ/GND
SOT-223
3 VIN
2 VOUT (TAB)
1 ADJ/GND
Note :
RichTek Pb-free products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-ST D-020.
Suitable for use in SnPb or Pb-free soldering processes.
100%matte tin (Sn) plating.
TO-252
3 VIN
2 VOUT (TAB)
1 ADJ/GND
TO-263
DS9176-09 March 2005
www.richtek.com
1
http://www.Datasheet4U.com/


  Richtek Technology Electronic Components Datasheet  

RT9176 Datasheet

1.5A Fixed and Adjustable Low Dropout Positive Voltage Regulators

No Preview Available !

RT9176
Typical Application Circuit
VIN = 5V
RT9176
VIN VOUT
C1
10uF
ADJ
VREF
IADJ
R1
133
1%
R2
232
1%
VOUT = 3.45V
C2
10uF
Tantalum
VOUT = V REF
(1+
R2
R1
) + I ADJ R2
(1) C1 needed if device is far from filter capacitors.
(2) C2 required for stability.
Figure 1.Adjustable Voltage Regulator
VIN = 5V
RT9176-33
VIN VOUT
C1
10uF
GND
IQ
VOUT
3.3V
C2
10uF
Tantalum
(1) C1 needed if device is far from filter capacitors.
(2) C2 required for stability.
Figure 2. Active SCSI Bus Terminator
RT9176-28
VIN VOUT
GND
10uF
IQ
22uF
18 - 27 Lines
Figure 3. Fixed Voltage Regulator
www.richtek.com
2
DS9176-09 March 2005
http://www.Datasheet4U.com/


Part Number RT9176
Description 1.5A Fixed and Adjustable Low Dropout Positive Voltage Regulators
Maker Richtek
Total Page 13 Pages
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