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MFG:RICHTEK  Package Cooled:MSOP8  D/C:4  

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Part Number: RT9186B

 

MFG: RICHTEK

Package Cooled: MSOP8

D/C: 4

Description: The RT9186 is a low-dropout linear regulator providing up to 500mA load current with 160mV dropout. It is especially de...


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RT9186B General Description


The RT9186 is a low-dropout linear regulator providing up to 500mA load current with 160mV dropout. It is especially designed for the application of portable and smart handheld device.

The RT9186 operates from 2.5V to 5.5V supply. The internal P-MOSFET pass transistor allows the regulator to workwith 190A low quiescent current. Its preset output voltage version covers themost frequently used values, including 1.8V/2.5V/3.3V. Output voltage can also be adjusted via the ADJ pin for those other than the preset values.

With only 0.1mA required in the shut down mode, one enable pin is able to control output on/off. RT9186A contains PGOODfunction. On the other hand, RT9186B contains RST function with 6ms (typ.) time delay.

RT9186B Maximum Ratings

Input Voltage ---------------------------------------------------------------------------------------------------------- 7V
Storage Temperature Range --------------------------------------------------------------------------------------- -65°C to 150°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260°C
PowerDissipation, PD@ TA = 25°C
  MSOP-8------------------------------------------------------------------------------------------------------------------- 0.625W
  VDFN-8L 3x3------------------------------------------------------------------------------------------------------------- 0.952W
Package Thermal Resistance (Note 4)
  MSOP-8, JA ------------------------------------------------------------------------------------------------------------ 160°C/W
  VDFN-8L 3x3, JA ------------------------------------------------------------------------------------------------------ 105°C/W
Junction Temperature ----------------------------------------------------------------------------------------------- 150°C
ESD Susceptibility (Note 2)
  HBM(Human Body Mode) -------------------------------------------------------------------------------------------- 2kV
  MM(MachineMode) ---------------------------------------------------------------------------------------------------- 200V

RT9186B Features

2.5V to 5.5V Wide Input Range
Guaranteed 500mAOutput Current
Low 160mV Dropout at 500mA
1.8V/2.5V/3.3V Preset Output Voltage Version with Adjustable Range from 0.8V to 4.5V.
Reset Output with 6ms (typ.) Delay Time
Power Good Output
Low 190A Ground Pin Current
0.1A Shutdown Current
Thermal and Over Current Protection
RoHS Compliant and 100%Lead (Pb)-Free

RT9186B Typical Application

NotebookComputer
PDAs/SHDs
PCMCIA/CardbusCard Product
Mobile Phone

RT9186B Connection Diagram

RT9186B Connection Diagram

RT9186B datasheet

RT9186B
PDF/DataSheet Download

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Related Part Number

RT9186B Relative Products

  • RT9186A

    RT9186A

    The RT9186A is a low-dropout linear regulator providing up to 500mA load current with 160mV dropout. It is especially designed for the application of portable and smart handheld device.The RT9186A operates from 2.5V to 5.5V supply. The internal P-MOSFET pass...

  • RT9185

    RT9185

    The RT9185 series are efficient, precise triple-channelCMOS LDO regulators specifically designed for mother-board application. The device is intended to powering thestandby voltage in which 3.3V_PCI, 2.5V_Clock and1.8V_ICH2 or 1.5V_ICH4 core voltage of the P...

  • RT9184A

    RT9184A

    The RT9184A series are an efficient, precise dual-channel CMOS LDO regulator optimized for ultra-low-quiescent applications. Both regulator outputs are capable of sourcing 500mA of output current.The RT9184A's performance is optimized for CD/DVD-ROM, CD/RW o...

  • RT9184

    RT9184

    The RT9184 is a dual-channel, low noise, and lowdropout regulator supplying up to 500mA current ateach channel. The output voltage ranges from 1.5Vto 3.3V in 100mV increment and 2% accuracy byoperating from a +2.7V to +6.5V input.The RT9184 uses two internal...

  • RT9183

    RT9183

    The RT9183 series are high performance linear voltage regulators that provide ultra low-dropout voltage, high output current with low ground current. It operates from an input of 2.3V to 5.5V and provides output current up to 1.5A thus is suitable to drive d...

  • RT9182

    RT9182

    The RT9182 is a dual-channel, low noise, and lowdropout regulator supplying up to 200mA current ateach channel. The output voltage ranges from 1.5Vto 3.3V in 100mV increments and 2% accuracy byoperating from a +2.7V to +6.5V input.The RT9182 uses an internal...

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