Power Management ICs Forum Discussions

Hi Everyone, 
We are looking to use IRPS5401 PMIC in our project. The supply voltage ratings are as below:

Input Voltage: 5V

Output1: 0.9V @ 3A
Output2: 1.5V @ 1.5A
Output3: 1.8V @ 1.5A
Output4: 3.3V @ 200mA

Kindly recommend the decoupling capacitors required for the input and output pins.

Looking forward to your quick response.

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Customers in the car test, found that the Vbat pin was broken, resulting in INH corner no output, the current test Damaged 9255 Vbat pin impedance to ground for 142Ω, 6Ω, 7Ω, etc., the customer wants to understand, the impedance is low to what extent the INH will be no output at all, the normal chip in the pressure test, that is, the Vbat pin voltage of more than 40V, INH pin can still continue to output a few minutes before being shut down, and then INH no output, while the damaged 9255, as long as the power supply overvoltage, it will immediately shut down the output of INH!

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MPS pin pulls high to 5v, configured to enter normal mode, no dog feed in normal mode, generates error back to init mode, generates reset, logic analyzer grab finds ROT pin has pull low, according to datasheet description no reset will be generated during return to init.

 

 

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hello (polite)

Recently, I was choosing a PMIC chip and found that both TLE7368E and TLF35584QVVS1 meet the conditions, but I encountered some questions about the use of both:

1. If the TLF7368E does not use LDO3, how are the FB_EXT and DRV_EXT pins connected; and if FB_EXT and DRV_EXT are shorted does it cause RO_2 to reset;

2.Can TLF35584 be used for MCU without SMU module, if so how to connect;

thanks

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E7%94%B5%E6%BA%90%E7%AE%A1%E7%90%86%E8%8A%AF%E7%89%87/TLE7368E-TLF35584/td-p/489392

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