RT9165
150mA 3-Terminal Positive Regulator
General Description
The RT9165 is a positive low dropout regulator designed
for applications requiring low dropout performance at full
rated current. The device is available in fixed output
voltage of 5.0V or 8.0V. The RT9165 provides excellent
regulation over line, load, and temperature variations.
The other features include low dropout performance at a
maximum of 1.3V at 150mA, fast transient response,
internal current limiting, and thermal shutdown protection
of the output devices. The RT9165 is a three-terminal
regulator compatible with industrial LM78L05/L08 and
available in surface mount SOT-89 package.
Features
Low Dropout, Maximum 1.3V at 150mA
Fast Transient Response
±3% Total Output Regulation
0.5% Line Regulation
0.5% Load Regulation
SOT-89 and TO-92 Packages
RoHS Compliant and 100% Lead (Pb)-Free
Applications
5V or 8V Output Linear Regulator
Consumer Equipment Power Supply
Ordering Information
RT9165-
Package Type
Z : TO-92
X : SOT-89
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Output Voltage
Default : 5.0V
80 : 8.0V
Pin Configurations
(TOP VIEW)
3
2
VIN
GND
VOUT
RT9165-xZ
TO-92
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.
VOUT GND VIN
(TAB)
1
2
3
RT9165-
xX
SOT-89
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
DS9165-16 April 2008
www.richtek.com
1
RT9165
Absolute Maximum Ratings
Input Voltage ------------------------------------------------------------------------------------------------------------ 16V
Power Dissipation, P
D
@ T
A
= 25°C
TO-92 --------------------------------------------------------------------------------------------------------------------- 0.625W
SOT-89 ------------------------------------------------------------------------------------------------------------------- 0.571W
Package Thermal Resistance (Note4)
TO-92,
θ
JA
--------------------------------------------------------------------------------------------------------------- 160°C/W
SOT-89,
θ
JA
------------------------------------------------------------------------------------------------------------- 175°C/W
Operating Junction Temperature Range --------------------------------------------------------------------------
−
40°C to 125°C
Storage Temperature Range ----------------------------------------------------------------------------------------
−
65°C to 150°C
Electrical Characteristics
(V
IN
= 7.0V, T
A
= 25°C, unless otherwise specified)
Parameter
Output Voltage
Line Regulation
Load Regulation
Dropout Voltage
Current Limit
Quiescent Current
Temperature Coefficient
Temperature Stability
RMS Output Noise
(Note3)
(Note1)
(Note1)
(Note1)
(Note2)
RT9165
RT9165-80
Symbol
V
OUT
ΔV
LINE
ΔV
LOAD
V
DROP
I
LIM
I
Q
T
C
T
S
Test Conditions
V
IN
= V
OUT
+ 2V
V
IN
= V
OUT
+ 2V ~ 16V
I
L
= 0~150mA
ΔV
OUT
=1%
Min
4.900
7.840
--
--
--
300
--
--
--
--
Typ
5.000
8.000
0.1
0.2
1.2
--
4.5
0.005
0.5
0.003
Max
5.100
8.160
0.5
0.5
1.3
--
8
--
--
--
Units
V
%
%
V
mA
mA
%/
°C
%
%/V
OUT
Note 1.
Low duty cycle pulse testing with Kelvin connections required.
Note 2.
The dropout voltage is defined as V
IN
-V
OUT
, which is measured when V
OUT
is V
OUT(NORMAL)
−
100mV.
Note 3.
Bandwidth of 10Hz to 10kHz.
Note 4.
θ
JA
is measured in the natural convection at T
A
= 25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
DS9165-16 April 2008
www.richtek.com
3
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