I've a SOT23-6 (i think LDO) that is glowing like a Christmas tree on the thermal camera. Pretty sure it takes 5V USB C VIN on pin 4, I'm not sure what it outputs. I've marked the pins and what they do, or what resistor they're connected to. Marking is JWE2J (Joulwatt). The component is on the main board of a Razer Kiyo Pro webcam. I think the ??? pin is EN. Thanks for any help in advance.
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I've a SOT23-6 (i think LDO) that is glowing like a Christmas tree on the thermal camera. Pretty sure it takes 5V USB C VIN on pin 4, I'm not sure what it outputs. I've marked the pins and what they do, or what resistor they're connected to. Marking is JWE2J (Joulwatt). The component is on the main board of a Razer Kiyo Pro webcam. I think the ??? pin is EN. Thanks for any help in advance.
Last edited by MuertoGB; 12-21-2023, 12:48 PM. -
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The pinout doesn't match your findings ...Comment
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Is output shorted? Sometimes low resistance on output can make ldo ic to glow...Comment
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If that is an inductor on pin #3, then the IC cannot be an LDO, it must be a switchmode converter. The output would be the lower end of the inductor. Check the resistance to ground at this point.
I suspect that this IC has a similar pinout:
https://www.ti.com/lit/gpn/TLV62569
Last edited by truclacicr; 12-22-2023, 01:07 PM.Comment
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Yes, it is an inductor. I've noticed it matches the pinout of the JW5222, looking at the datasheet it could be plausable for a replacement.
https://datasheet.lcsc.com/lcsc/1912...22_C371424.pdfComment
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Make sure that the feedback voltage and switching frequency are the same.Comment
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I have Razer Blade 15 RZ09-0328 MOBO: DA550-MB MP V4.0 20200227 with liquid damage.
I need to know value of resistor on photo. Thanks for help. ... -
Please can you help me with identification part on the photo.
May be, Power-Distribution Switche with Soft Start but I don`t know.
Part is from notebook Razer RZ09-0301 .
pinout .
1-2 - input 3.3V
3 - Enable 3.3V
4 - VCC 5V
5 - GND
6 - capacitor to GND
7-8 - output 3.3V for EDP LCD, but no working
IF I connect input and output, LCD work fine .
Thanks.... -
The NB670 NB670GQ is a fully integrated high frequency synchronous rectified step-down switch mode converter with 3.3V fixed output voltage. It offers very compact solution to achieve 6A continuous output current and 9A peak output current over a wide input supply range with excellent load and line regulation. The NB670 operates at high efficiency over a wide output current load range. Constant-On-Time (COT) control mode provides fast transient response and eases loop stabilization.
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