RT9165
DS9165-04 Dec. 2000
www.richtek-ic.com.tw
1
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.
Applications
5V or 8V Output Linear Regulator
Consumer Equipment Power Supply
Ordering Information
RT9165-
Marking Infromation
Part Number
Marking
RT9165-CZ
RTBA
RT9165-CX
AN
RT9165-80CX
CV
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
Pin Configurations
Part Number
Pin Configurations
RT9165-CZ
(Plastic TO-92)
1. VOUT
2. GND
3. VIN
RT9165-
CX
(Plastic SOT-89)
1. VOUT
2. GND
3. VIN
Typical Application Circuit
Output voltage
Default : 5V
80 : 8.0V
Operating temperature range
C: Commercial standard
Package type
Z : TO-92
X : SOT-89
1
2
3
TOP VIEW
1 2 3
V
IN
V
OUT
C1
10
F
VOUT
GND
VIN
C2
10
F
RT9165
RT9165
DS9165-04 Dec. 2000
www.richtek-ic.com.tw
3
Absolute Maximum Ratings
Input Voltage V
IN
16V
Power Dissipation
TO-92
0.6W
SOT-89
0.5W
Operating Junction Temperature Range
-40C to 125C
Storage Temperature Range
-50C to 150C
Electrical Characteristics
(V
IN
= 7.0V, T
A
= 25, unless otherwise specified )
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
RT9165
4.850
5.000
5.150
Output Voltage
(1)
RT9165-80
V
IN
= V
OUT
+ 2V
7.760
8.000
8.240
V
Line Regulation
(1)
V
IN
= 7V-16V
0.1
0.5
%
Load Regulation
(1)
I
L
= 0~150mA
0.2
0.5
%
Dropout Voltage
(2)
V
OUT
=1%
1.2
1.3
V
Current Limit
--
300
mA
Quiescent Current
--
4.5
8
mA
Temperature Coefficient
--
0.005
%/C
Temperature Stability
--
0.5
%
RMS Output Noise
(3)
--
0.003
%/V
OUT
Notes:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2) Dropout voltage is defined as the input to output differential at which the output voltage drops 1% below the
value measured with a 2V differential.
(3) Bandwidth of 10 Hz to 10 kHz.
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