RT9161A-18GX Richtek USA Inc, RT9161A-18GX Datasheet

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RT9161A-18GX

Manufacturer Part Number
RT9161A-18GX
Description
IC REG LDO 1.8V 500MA SOT89
Manufacturer
Richtek USA Inc
Datasheet
1.RT9161-15GV.pdf (10 pages)

Specifications of RT9161A-18GX

Regulator Topology
Positive Fixed
Voltage - Output
1.8V
Voltage - Input
Up to 12V
Voltage - Dropout (typical)
0.75V @ 500mA
Number Of Regulators
1
Current - Output
500mA (Max)
Current - Limit (min)
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-243AA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
300/500mA Low Dropout Linear Voltage Regulator
General Description
The RT9161/A is a 300/500mA fixed output voltage low
dropout linear regulator. Typical ground current is
approximately 110μA, from zero to maximum loading
conditions. Wide range of available output voltage fits most
of applications. Built-in output current-limiting most
thermal-limiting provide maximal protection against any
fault conditions.
For ease of application, the RT9161/A comes in the popular
3-pin SOT-23 (300mA), SOT-89 (300mA), SOT-223
(500mA), or TO-92 packages.
Ordering Information
Note :
Richtek Pb-free and Green products are :
DS9161/A-34 April 2010
RT9161/A-
RoHS compliant and compatible with the current require-
Suitable for use in SnPb or Pb-free soldering processes.
ments of IPC/JEDEC J-STD-020.
Package Type
V : SOT-23-3
X : SOT-89
G : SOT-223
ZL : TO-92 (L-Type)
ZT : TO-92 (T-Type)
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
500mA Output Current
300mA Output Current
Output Voltage
15 : 1.5V
16 : 1.6V
49 : 4.9V
50 : 5.0V
:
cial Standard)
Features
Applications
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.
Pin Configurations
Low Dropout Voltage of 200mV at Output Current
100mA, 450mV at Output Current 300mA, and
750mV at 500mA Output Current
Guaranteed 300/500mA Output Current
Internal 1.5Ω Ω Ω Ω Ω P-MOSFET Draws No Base Current
Low Ground Current 110μ μ μ μ μ A
2% Accuracy Output Voltage
Input Voltage Range up to 12V
Extremely Tight Load Regulation
Fast Transient Response
Current-limiting and Thermal-limiting
RoHS Compliant and 100% Lead (Pb)-Free
Voltage Regulator for LAN Card, CD-ROM, and DVD
Wireless Communication Systems
Battery Powered Systems
GND
GND
1
SOT-23-3
SOT-223
VIN
3
(TAB)
VIN
2
VOUT
2
VOUT
3
(TOP VIEW)
RT9161/A
GND
1
www.richtek.com
SOT-89
(TAB)
VIN
2
VOUT
3
1

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RT9161A-18GX Summary of contents

Page 1

Low Dropout Linear Voltage Regulator General Description The RT9161 300/500mA fixed output voltage low dropout linear regulator. Typical ground current is approximately 110μA, from zero to maximum loading conditions. Wide range of available output voltage fits most ...

Page 2

RT9161 TO-92 (L-Type) Typical Application Circuit Functional Pin Description Pin Name Pin Function VOUT Output Voltage. GND Ground. VIN Power Input. Function Block Diagram VIN www.richtek.com 2 VOUT GND VIN RT9161/A VIN VOUT ...

Page 3

... Output Voltage Accuracy Output Voltage Temperature Coefficient Line Regulation Load Regulation (Note 2) RT9161 Current Limit (Note 3) RT9161A Dropout Voltage (Note 4) Standby Current Note 1. θ is measured in the natural convection JEDEC 51-3 thermal measurement standard. Note 2. Regulation is measured at constant junction temperature, using pulsed ON time. ...

Page 4

RT9161/A Typical Operating Characteristics Temperature Stability 3.4 3.2 3 2.8 2.6 2.4 -50 - Temperature Dropout Voltage (V 1 0.8 0.6 0.4 0 100 200 I Load Line Transient Response 10μF Electrolytic OUT ...

Page 5

Load Transient Response 1μ 10μF OUT T = 25° > -20 ≈ 100 > 1 -50 Time (100μs/Div) Time (100μS/Div) Load Transient Response 60 ...

Page 6

RT9161/A Application Information A 10uF capacitor with 200mΩ or higher ESR, connecting between VOUT and GND pins, is recommended for stability. A capacitor with ESR smaller than 200 mΩ may cause VOUT oscillation as shown in Figure 1. Operating temperature ...

Page 7

Outline Dimension Symbol DS9161/A-34 April 2010 Dimensions In Millimeters Min Max 3.175 4.191 1.143 1.372 0.406 0.533 0.406 0.533 4.445 5.207 3.429 5.029 ...

Page 8

RT9161/A Symbol www.richtek.com Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.508 2.591 2.997 2.692 3.099 1.803 2.007 0.080 ...

Page 9

Symbol DS9161/A-34 April 2010 Dimensions In Millimeters Min Max 1.397 1.600 0.356 0.483 2.388 2.591 0.406 0.533 3.937 4.242 0.787 1.194 ...

Page 10

RT9161/A Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Information that is provided by Richtek Technology Corporation is ...

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