LM1185SF5 HTC Korea, LM1185SF5 Datasheet

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LM1185SF5

Manufacturer Part Number
LM1185SF5
Description
150 mA C-MOS L.D.O. Regulator
Manufacturer
HTC Korea
Datasheet
1.LM1185SF5.pdf (4 pages)

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0702 Taejin Technology Co.,Ltd.
FEATURES
• Extremely Low Supply Current(50µA,Typ.)
• Very Low Dropout Voltage
• 150mA Output Current
• High Output Voltage Accuracy +/- 1.4 %
• Standard or Custom Output Voltages
• Over Currentand Over Temperature Protection
• Small input/output differential : 0.165V at 150mA
APPLICATIONS
• Battery Operated Systems
• Portable Computers
• Portable Cameras and Video Recorders
• Medical Instruments
• Instrumentation
• Cellular/GSM/PHS Phones
• Linear Post-Regulators for SMPS
• Pagers
DESCRIPTION
150 mA C-MOS L.D.O. Regulator
The LM1185 series is a low-dropout linear regulators.
There are devices designed specifically for battery-operated Systems. Ground current is very small (2µA -
Typ), that significantly extending battery life.
Low power consumption and high accuracy is achieved through CMOS and programmable fuse
technologies. Output voltage: 1.5V to 6.0V.
The LM1185 consists of a high-precision voltage reference, an error correction circuit, and a current
limited output driver. With good transient responses, output remains stable even during load changes.
The SHDN input enables the output to be turned off, resulting in reduced power consumption. Also, the
LM1185 having high ripple rejection ratios, the series can be used with power supply noise. A 470pF
capacitor from the Bypass input to ground reduces noise present on the internal reference, which in turn
significantly reduces output noise.
If output noise is not a concern, this input may be left unconnected. Larger capacitor values Cbp be used,
but results in a longer time period to rated output voltage when power is initially applied.
incorporates both over-temperature and over-current protection. SOT23-5 (300mW) and SOT-89-5
(500mW) packages are available.
1
ORDERING INFORMATION
LM1185 SF5
(Note : "XX" is Output Voltage for SOT-25 Pkg,
SOT-23-5L(SOT-25)
1.Vin 2.Gnd 3.
1.5V=HA15, 1.8V=HA18….3.3V=HA33)
Device
Marking
SHDN
HAXX
4.Bypass 5.Vout
LM1185SF
The LM1185
Package
SOT-25
HTC

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LM1185SF5 Summary of contents

Page 1

C-MOS L.D.O. Regulator FEATURES • Extremely Low Supply Current(50µA,Typ.) • Very Low Dropout Voltage • 150mA Output Current • High Output Voltage Accuracy +/- 1.4 % • Standard or Custom Output Voltages • Over Currentand Over Temperature Protection ...

Page 2

C-MOS L.D.O. Regulator ABSOLUTE MAXIMUM RATING (Note 1) Supply Voltage (Vin) Output Current (Iout) Output Voltage (Vout) Total Power Dissipation (Pd) SOT-23-5L Operating Ambient Temperature (Topr) Lead Temperature (soldering, 5 sec) Storage Temperature (Tstg) ELECTRICAL CHARACTERISTICS (at Ta ...

Page 3

C-MOS L.D.O. Regulator Typical Application Circuit + Battery Detail Description 1. Output Capacitor 1uF(min) capacitor from V OUT The output capacitor hould have an effective series resistance greater than 0.1 Ω and less than .0Ω. 1uF capacitor should ...

Page 4

C-MOS L.D.O. Regulator EQUATION 3-1: EQUATION 3-2: 3.3 Layout Considerations : The primary path of heat conduction out of the package is via the package leads. Therefore,layouts having a ground plane,wide traces at the pads,and wide power supply ...

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