ZHCSQI6C May 2022 – October 2023 TPS62870-Q1 , TPS62871-Q1 , TPS62872-Q1 , TPS62873-Q1
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 9-4). The default output voltage range after device initialization is 0.4 V to 1.675 V in 5-mV steps.
| VRANGE[1:0] | Voltage Range |
|---|---|
| 0b00 | 0.4 V to 0.71875 V in 1.25-mV steps |
| 0b01 | 0.4 V to 1.0375 V in 2.5-mV steps |
| 0b10 | 0.4 V to 1.675 V in 5-mV steps |
| 0b11 | 0.8 V to 3.35 V in 10-mV 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 0.8-V to 3.35-V range uses a 0.8-V reference and the other ranges use a 0.4-V reference. Switching to and from the 0.8-V to 3.35-V range can therefore cause increased output voltage undershoot or overshoot while the device switches its internal reference.
In device variants that do not have I2C, the output voltage range is factory-set to 0.4 V to 1.675 V.