Good day. I've got a dead motherboard which shows .58v on power switch pins. Found out there's a heating component marked A8805 AEF46. I want to know if this is compatible with L1087G. It has the same function but cannot clearly understand if it has the same pinout or voltage capacity. I've attached the pdf files. Thanks everyone.
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Re: Regulator compatibility
They are both linear LDO regulators, but there are differences.
Input Voltage: AME8805 max. 7V; L1087 15V.
Pinout is different on the L1087 unless "A" version
L1087 likes a bigger 10uF vs 2.2uF output capacitor for stability
If the pinout and the expected input voltage are OK, I would use the sub.
Usually +5V input and 3.3V output are what the parts are intended for, unless the laptop battery feeds input. -
Re: Regulator compatibility
thanks redwire for the info. This is from a foxconn desktop motherboard. Its connected to pin no.9 of the 24pin power connector from power supply, 5v standby. The only concern is the pinout. I'll try to check the source board if pinouts are the same.Comment
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Hello. I have an Inspiron 7501 here, it's the same as a Vostro 7500 in some markets (no clue). I was looking to replace the LCD, the panels included with these models are terrible.
I have the schematic and it is a 4 lane eDP port on the board but the pinout seems quite weird, my question is if anyone recognises this weird pinout and knows of any other Dell models that may use it or even any compatible panel models. I have the 40-40pin cable that was used for the models with touch but do not need touch capability, was just looking for a better quality screen and higher refresh to actually...10-02-2024, 04:54 PM -
Hello everyone,
I want to find a replacement for uP0109 8pins, and i found this parts:
uP0109 is "2A Ultra Low Dropout Linear Regulator"
RT9199 is "Cost-Effective, 2A Peak Sink/Source Bus Termination Regulator"
FP6137C is "2A BUS TERMINATION REGULATOR"
can replace uP0109 by RT9199 or FP6137C ? -
hello ,for diy voltage injector for short killer/finder -- is it possible to use something like this - LM317 DC Linear Regulator, DC-DC 4.5~40V Turn 1.2~37V, Step Down Power Module, Adjustable
and ampere controller along (to make it zero amps ) with some addons(transistors diodes etc.) for it -- and use some 5v adaptor or 3.3v volt rail of my smps power supply as input and finally get 1v and zero amps for injecting voltage to find out short circuit component ? ..
for source input -- can we use 3.3 -4 volt 18550 battery ?( i have some of those ) and then adding ampere regulator... -
3+1 Voltage Regulator for IMVP-7/VR12 CPUs
Compliant with IMVP-7/VR12, the ISL95831 provides a complete solution for microprocessor and graphic processor
core power supply. It provides two Voltage Regulators (VRs) with three integrated gate drivers. The first VR can be
configured as 3-, 2- or 1-phase VR while the second output is 1- phase VR, providing maximum flexibility. The two VRs share the
serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two chip approach.
Based on Intersil's Robust Ripple Regulator...11-05-2024, 03:24 PM -
This Concept 2 rower pm5 monitor doesn't shut down. It keeps turning on and stays on after being turned off. I read on another forum by another user that replaced the same component to check the voltage regulator.
The monitor should pull around 35mA when turned on and in shutdown it should drops to around 0.060mA. Any advice on finding the voltage regulator on this board to check if it needs to be replaced?
11-05-2024, 07:38 AM
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