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RT9163
500mA Low Dropout Positive Voltage Regulator
General Description
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. 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.
Features
Low Dropout, Maximum 1.4V at 500mA 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
Applications
5V to 3.3V Linear Regulator Low Voltage Microcontroller, DSP,.... etc. Power Supply Linear Regulator for LAN Card and CD-ROM
Ordering Information
RT9163Package 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) Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commercial Standard) Output Voltage 33 : 3.3V 35 : 3.5V 50 : 5.0V
Pin Configurations
(TOP VIEW)
3 2 1 VOUT GND VIN
CZL RT9163TO-92
1
2
3
1
2
3
VOUT GND (TAB)
VIN
GND
VIN VOUT (TAB)
RT9163CX SOT-89
RT9163CXL SOT-89
Note : RichTek Pb-free and Green 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. 100%matte tin (Sn) plating.
1 2 GND (TAB) VOUT VIN 3
1
2
3
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.
DS9163-24 March 2007
VOUT GND VIN (TAB)
RT9163CL TO-252
RT9163CG SOT-223
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RT9163
1
2
3
1
2
3
1
2
3
VIN
GND VOUT (TAB)
GND VOUT VIN (TAB)
GND
VIN VOUT (TAB)
RT9163CGL SOT-223
RT9163CGT SOT-223
RT9163CGF SOT-223
Typical Application Circuit
RT9163 VIN CIN 10uF VIN VOUT GND VOUT
+ +
COUT 10uF
Function Block Diagram
VIN Q2 Buffer Amplifier Thermal Shutdown R4
Error Amplifier
Q1
-
Current Limiting Sensor
R3 VOUT R1
VREF R2
Functional Pin Description
Pin Name VOUT GND VIN Pin Function Output Voltage Ground Power Input
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+
DS9163-24 March 2007
RT9163
Absolute Maximum Ratings
Input Voltage ------------------------------------------------------------------------------------------------------------ 15V Power Dissipation, PD @ TA = 25C TO-92 --------------------------------------------------------------------------------------------------------------------- 0.625W SOT-89 ------------------------------------------------------------------------------------------------------------------- 0.571W SOT-223 ----------------------------------------------------------------------------------------------------------------- 0.740W TO-252 ------------------------------------------------------------------------------------------------------------------- 1.471W Package Thermal Resistance (Note 4) TO-92, JA --------------------------------------------------------------------------------------------------------------- 160C/W SOT-89, JC ------------------------------------------------------------------------------------------------------------- 48C/W SOT-89, JA ------------------------------------------------------------------------------------------------------------- 175C/W SOT-223, JC ----------------------------------------------------------------------------------------------------------- 19C/W SOT-223, JA ------------------------------------------------------------------------------------------------------------ 135C/W TO-252, JC ------------------------------------------------------------------------------------------------------------- 7.5C/W TO-252, JA -------------------------------------------------------------------------------------------------------------- 68C/W Operating Junction Temperature Range -------------------------------------------------------------------------- -40C to 125C Storage Temperature Range ---------------------------------------------------------------------------------------- -65C to 150C
Electrical Characteristics
(VIN = 5V, TA = 25C, unless otherwise specified)
Parameter RT9163-33 Output Voltage (Note 1) RT9163-35 RT9163-50 Line Regulation (Note 1) Load Regulation Dropout Voltage Current Limit Quiescent Current Temperature Coefficient Temperature Stability RMS Output Noise (Note 3) RT9163-33 RT9163-35 RT9163-50 (Note 1) (Note 2)
Symbol
Test Conditions
Min 3.235
Typ 3.300 3.500 5.000 0.1 0.1 0.2 1.3 -4.5 0.005 0.5 0.003
Max 3.365 3.570 5.100 0.4 0.4 0.4 1.4 -8 ----
Units
VOUT VIN = 7V VLINE VLOAD VDROP ILIM IQ TC TS VIN = 5V ~ 15V VIN = 7V ~ 15V IL = 0 ~ 500mA VOUT = 1% Load = 1
3.430 4.900 ----550 -----
V
% % V mA mA %/C % %/VOUT
Note 1. Low duty cycle pulse tested with Kelvin connections. Note 2. The dropout voltage is defined as VIN -VOUT, which is measured when VOUT is VOUT(NORMAL) - 100mV. Note 3. Bandwidth of 10 Hz to 10 kHz. Note 4. JA is measured in the natural convection at TA = 25C on a low effective thermal conductivity test board of JEDEC 51-3 thermal measurement standard. The case point of JC is on the center of the exposed pad.
DS9163-24 March 2007
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RT9163
Outline Dimension
D
A
E
L
e D1
b
C
A1
Symbol A A1 b C D D1 E e L
Dimensions In Millimeters Min 3.175 1.143 0.406 0.406 4.445 3.429 4.318 1.143 12.700 Max 4.191 1.372 0.533 0.533 5.207 5.029 5.334 1.397
Dimensions In Inches Min 0.125 0.045 0.016 0.016 0.175 0.135 0.170 0.045 0.500 Max 0.165 0.054 0.021 0.021 0.205 0.198 0.210 0.055
3-Lead TO-92 Plastic Package
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DS9163-24 March 2007
RT9163
D D1
A
C
B
C1 e e H A b b
b1
Symbol A b B b1 C C1 D D1 e H
Dimensions In Millimeters Min 1.397 0.356 2.388 0.406 3.937 0.787 4.394 1.397 1.448 0.356 Max 1.600 0.483 2.591 0.533 4.242 1.194 4.597 1.753 1.549 0.432
Dimensions In Inches Min 0.055 0.014 0.094 0.016 0.155 0.031 0.173 0.055 0.057 0.014 Max 0.063 0.019 0.102 0.021 0.167 0.047 0.181 0.069 0.061 0.017
3-Lead SOT-89 Surface Mount Package
DS9163-24 March 2007
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RT9163
D D1 B T V E L1 S C U R
L3 b1 b e b2 L2
A
Symbol A B b b1 b2 C D D1 E e L1 L2 L3 U V R S T
Dimensions In Millimeters Min 2.184 0.889 0.508 0.457 0.457 6.350 5.207 5.334 2.108 9.398 Max 2.388 2.032 0.889 0.584 0.584 6.731 5.461 6.223 2.438 10.414
Dimensions In Inches Min 0.086 0.035 0.020 0.018 0.018 0.250 0.205 0.210 0.083 0.370 Max 0.094 0.080 0.035 0.023 0.023 0.265 0.215 0.245 0.096 0.410
1.016 Ref.
0.040 Ref.
0.508 Ref. 0.635 1.016
0.020 Ref. 0.025 0.040
3.810 Ref. 3.048 Ref. 0.200 2.500 0.500 0.850 3.400 0.850
0.150 Ref. 0.120 Ref. 0.008 0.098 0.020 0.033 0.134 0.033
3-Lead TO-252 Surface Mount Package
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DS9163-24 March 2007
RT9163
D D1
H
C
B
L e e
L1
A b
A1
Symbol A A1 b B C D D1 e H L L1
Dimensions In Millimeters Min 1.450 0.020 0.610 3.302 6.706 6.299 2.896 2.261 0.229 1.550 0.800 Max 1.803 0.100 0.787 3.708 7.290 6.706 3.150 2.362 0.330 1.950 1.100
Dimensions In Inches Min 0.057 0.0008 0.024 0.130 0.264 0.248 0.114 0.089 0.009 0.061 0.009 Max 0.071 0.0047 0.031 0.146 0.287 0.264 0.124 0.093 0.013 0.077 0.013
3-Lead SOT-223 Surface Mount Package
Richtek Technology Corporation
Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611
Richtek Technology Corporation
Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com
DS9163-24 March 2007
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