DS9163 28

RT9163
500mA Low Dropout Positive Voltage Regulator
General Description
Features
The RT9163 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 3.3V, 3.5V, and 5.0V. The RT9163 provides
excellent regulation over line, load, and temperature
variations.
z
Low Dropout, Maximum 1.4V at 500mA
z
Fast Transient Response
±2% Total Output Regulation
0.4% Line Regulation
0.4% Load Regulation
TO-92, SOT-89, SOT-223, and TO-252 Packages
RoHS Compliant and 100% Lead (Pb)-Free
The other features include low dropout performance at a
maximum of 1.4V at 500mA, fast transient response,
internal current limiting, and thermal shutdown protection
of the output devices. The RT9163 is a three-terminal
regulator available in surface mount SOT-89, SOT-223,
and TO-252 packages.
Ordering Information
z
z
z
z
z
Applications
z
z
z
5V to 3.3V Linear Regulator
Low Voltage Microcontroller, DSP,.... etc. Power Supply
Linear Regulator for LAN Card and CD-ROM
Pin Configurations
RT9163-
(TOP VIEW)
Package Type
ZL : TO-92 (L-Type)
X : SOT-89
XL : SOT-89 (L-Type)
L : TO-252
G : SOT-223 (Type-I)
GL : SOT-223 (Type-II)
GT : SOT-223 Type-III)
GF : SOT-223 (Type-IV)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Output Voltage
33 : 3.3V
35 : 3.5V
50 : 5.0V
3
VOUT
2
GND
1
VIN
TO-92 (L-Type)
1
2
VOUT GND
(TAB)
3
1
VIN
GND
2
3
VIN VOUT
(TAB)
SOT-89 (L-Type)
SOT-89
Note :
Richtek products are :
`
RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
`
Suitable for use in SnPb or Pb-free soldering processes.
1
1
2
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS9163-28 April 2011
GND
(TAB)
VOUT
2
3
3
VOUT GND VIN
(TAB)
VIN
SOT-223 (Type-I)
TO-252
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1
RT9163
1
VIN
2
3
1
GND VOUT
(TAB)
2
1
3
GND
GND VOUT VIN
(TAB)
SOT-223 (Type-III)
SOT-223 (Type-II)
2
3
VIN VOUT
(TAB)
SOT-223 (Type-IV)
Typical Application Circuit
RT9163
CIN
10uF
VIN
VOUT
GND
VOUT
+
+
VIN
COUT
10uF
Function Block Diagram
VIN
Q2
Buffer
Amplifier
Q1
Thermal
Shutdown
R4
+
Error
Amplifier
-
Current
Limiting
Sensor
R3
VOUT
R1
VREF
R2
Functional Pin Description
Pin Name
Pin Function
VOUT
Output Voltage.
GND
Ground.
VIN
Power Input.
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2
DS9163-28 April 2011
RT9163
Absolute Maximum Ratings
z
z
z
z
z
Input Voltage ---------------------------------------------------------------------------------------------------------------- 15V
Power Dissipation, PD @ TA = 25°C
TO-92 ------------------------------------------------------------------------------------------------------------------------- 0.625W
SOT-89 ----------------------------------------------------------------------------------------------------------------------- 0.571W
SOT-223 --------------------------------------------------------------------------------------------------------------------- 0.740W
TO-252 ----------------------------------------------------------------------------------------------------------------------- 1.471W
Package Thermal Resistance (Note 1)
TO-92, θJA ------------------------------------------------------------------------------------------------------------------- 160°C/W
SOT-89, θJC ----------------------------------------------------------------------------------------------------------------- 48°C/W
SOT-89, θJA ----------------------------------------------------------------------------------------------------------------- 175°C/W
SOT-223, θJC ---------------------------------------------------------------------------------------------------------------- 19°C/W
SOT-223, θJA ---------------------------------------------------------------------------------------------------------------- 135°C/W
TO-252, θJC ----------------------------------------------------------------------------------------------------------------- 7.5°C/W
TO-252, θJA ------------------------------------------------------------------------------------------------------------------ 68°C/W
Operating Junction Temperature Range ------------------------------------------------------------------------------- −40°C to 125°C
Storage Temperature Range --------------------------------------------------------------------------------------------- −65°C to 150°C
Electrical Characteristics
(VIN = 5V, TA = 25° C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
3.235
3.300
3.365
3.430
3.500
3.570
4.900
5.000
5.100
VIN = 5V to 15V
--
0.1
0.4
VIN = 7V to 15V
--
0.1
0.4
RT9163-33
Output Voltage
(Note 2)
RT9163-35
VOUT
VIN = 7V
RT9163-50
RT9163-33
RT9163-35
Line Regulation
(Note 2)
ΔVLINE
RT9163-50
Unit
V
%
Load Regulation
(Note 2)
ΔVLOAD
I L = 0 to 500mA
--
0.2
0.4
%
Dropout Voltage
(Note 3)
VDROP
ΔVOUT = 1%
--
1.3
1.4
V
Current Limit
ILIM
Load = 1Ω
550
--
--
mA
Quiescent Current
IQ
--
4.5
8
mA
Temperature Coefficient
TC
--
0.005
--
%/°C
Temperature Stability
TS
--
0.5
--
%
--
0.003
--
%/VOUT
RMS Output Noise
(Note 4)
Note 1. θJA is measured in the natural convection at TA = 25°C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard. The case point of θJC is on the center of the exposed pad.
Note 2. Low duty cycle pulse tested with Kelvin connections.
Note 3. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV.
Note 4. Bandwidth of 10 Hz to 10 kHz.
DS9163-28 April 2011
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3
RT9163
Outline Dimension
A
D
E
L
b
e
C
D1
A1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
3.175
4.191
0.125
0.165
A1
1.143
1.372
0.045
0.054
b
0.406
0.533
0.016
0.021
C
0.406
0.533
0.016
0.021
D
4.445
5.207
0.175
0.205
D1
3.429
5.029
0.135
0.198
E
4.318
5.334
0.170
0.210
e
1.143
1.397
0.045
0.055
L
12.700
0.500
3-Lead TO-92 Plastic Package
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DS9163-28 April 2011
RT9163
D
D1
A
B
C
C1
e
e
H
A
b
b1
b
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min
Max
Min
Max
A
1.397
1.600
0.055
0.063
b
0.356
0.483
0.014
0.019
B
2.388
2.591
0.094
0.102
b1
0.406
0.533
0.016
0.021
C
3.937
4.242
0.155
0.167
C1
0.787
1.194
0.031
0.047
D
4.394
4.597
0.173
0.181
D1
1.397
1.753
0.055
0.069
e
1.448
1.549
0.057
0.061
H
0.356
0.432
0.014
0.017
3-Lead SOT-89 Surface Mount Package
DS9163-28 April 2011
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5
RT9163
D
U
C
D1
R
B
T
V
E
S
L1
L3
b1
b
L2
e
b2
A
Symbol
Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
A
2.184
2.388
0.086
0.094
B
0.889
2.032
0.035
0.080
b
0.508
0.889
0.020
0.035
b1
1.016 Ref.
0.040 Ref.
b2
0.457
0.584
0.018
0.023
C
0.457
0.584
0.018
0.023
D
6.350
6.731
0.250
0.265
D1
5.207
5.461
0.205
0.215
E
5.334
6.223
0.210
0.245
e
2.108
2.438
0.083
0.096
L1
9.398
10.414
0.370
0.410
L2
L3
0.508 Ref.
0.635
1.016
0.020 Ref.
0.025
0.040
U
3.810 Ref.
0.150 Ref.
V
3.048 Ref.
0.120 Ref.
R
0.200
0.850
0.008
0.033
S
2.500
3.400
0.098
0.134
T
0.500
0.850
0.020
0.033
3-Lead TO-252 Surface Mount Package
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DS9163-28 April 2011
RT9163
Dimensions In Millimeters
Symbol
Dimensions In Inches
Min
Max
Min
Max
A
1.400
1.800
0.055
0.071
A1
0.020
0.100
0.001
0.004
b
0.600
0.840
0.024
0.033
B
3.300
3.700
0.130
0.146
C
6.700
7.300
0.264
0.287
D
6.300
6.700
0.248
0.264
b1
2.900
3.100
0.114
0.122
e
2.300
0.091
H
0.230
0.350
0.009
0.014
L
1.500
2.000
0.059
0.079
L1
0.800
1.100
0.031
0.043
3-Lead SOT-223 Surface Mount Package
Richtek Technology Corporation
Richtek Technology Corporation
Headquarter
Taipei Office (Marketing)
5F, No. 20, Taiyuen Street, Chupei City
5F, No. 95, Minchiuan Road, Hsintien City
Hsinchu, Taiwan, R.O.C.
Taipei County, Taiwan, R.O.C.
Tel: (8863)5526789 Fax: (8863)5526611
Tel: (8862)86672399 Fax: (8862)86672377
Email: [email protected]
Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit
design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be
guaranteed by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek.
DS9163-28 April 2011
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