Issue with S25FS256SAGNFI001 | Cypress Semiconductor
Issue with S25FS256SAGNFI001
I am using TI's TPS62732 in my design to power up SPI flash memory (Cypress's S25FS256SAGNFI001). I have attached the schematic for reference.
There is a problem in voltage output from TPS62732 when Flash chip mounted. My Observations are below.
Please let me know if anything wrong with the circuit or any suggestions would be highly appreciated.
BEFORE FLASH MEMORY IS SOLDERED.
Output of U6 regulator (TPS62732) is 1.9V
AFTER THE FLASH MEMORY IS SOLDERED
Output of U6 regulator (TPS62732) is fixed anywhere between 2.2V and 3V .
Any suggestions on what could be going wrong?
DI_5/ON-BYP-TPS62732 = HIGH = 2.8V
DI_4/ON-TPS22860 = HIGH = 2.8V