ZHCSNZ3B January 2023 – May 2024 TPS62870 , TPS62871 , TPS62872 , TPS62873
PRODUCTION DATA
The device has four different voltage ranges. The VRANGE[1:0] bits in the CONTROL1 register control which range is active (see Table 8-4). The default output voltage range after device initialization is 0.4V to 1.675V in 5mV steps.
| VRANGE[1:0] | Voltage Range |
|---|---|
| 0b00 | 0.4V to 0.71875V in 1.25mV steps |
| 0b01 | 0.4V to 1.0375V in 2.5mV steps |
| 0b10 | 0.4V to 1.675V in 5mV steps |
| 0b11 | 0.8V to 3.3 V in 10mV steps |
Note that every change to the VRANGE[1:0] bits must be followed by a write to the VSET register, even if the value of the VSET[7:0] bits does not change. This sequence is required for the device to start to use the new voltage range.
Also note that the 0.8V to 3.35V range uses a 0.8V reference and the other ranges use a 0.4V reference. Switching to and from the 0.8V to 3.35V range can therefore cause increased output voltage undershoot or overshoot while the device switches the internal reference.
In device variants that do not have I2C, the output voltage range is factory-set to 0.4V to 1.675V.