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My question for the power range of Goodix BLE chips GR551x

Sunshine

Goodix Employee
2019-05-11 18:47

What is the power range of Goodix BLE chips? Do the chips need to supply power to cores and I/Os separately?

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Goodix Administrator

Community Administrator
2019-06-26 10:36

GR551x series SoC provides on-chip DC-DC converters.

The chips use low dropout (LDO) regulators to supply power to I/Os and external devices. The power range is between 1.7 V and 4.35 V.

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Ping

Goodix Employee
2022-04-09 11:59

1. Supply voltage: 1.7 V to 3.8 V. The supply voltage of GR5515I0ND/GR5515I0NDA (when the external Flash ofGR5515I0NDA supplied by high voltage) shall equal the working voltage of external QSPI Flash

2. I/O voltage: 1.8 V to 3.3 V (Typical) (for GR5515I0ND/GR5515I0NDA/GR5515IENDU/GR5513BENDU Flashusing high voltage, the VIO_LDO_OUT shall be connected to VBATL in schematic circuit.)

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