ZHCSNR7A March 2022 – August 2022 TPS55289
PRODUCTION DATA
When the EN/UVLO pin voltage is pulled below 0.4 V, the TPS55289 is in shutdown mode, and all functions are disabled. All internal registers are reset to default values.
When the EN/UVLO pin is at a high logic level and the OE bit is cleared to 0, the TPS55289 turns off the switching operation but keeps the I2C interface active. Simultaneously, if the DISCHG bit in the register 06h is set to 1, the TPS55289 discharges the output voltage below 0.8 V by an internal constant current.