Data Sheet
47
Rev. 1.00
2017-07-31
TLE9262BQXV33
Voltage Regulator 2
7.2
Functional Description
In SBC Normal Mode VCC2 can be switched on or off via SPI.
For SBC Stop- or Sleep Mode, the VCC2 has to be switched on or off before entering the respective SBC mode.
The regulator can provide an output current up to I
VCC2,lim
.
For low-quiescent current reasons, the output voltage tolerance is decreased in SBC Stop Mode because only
a low-power mode regulator with a lower accuracy (V
CC2,out5
) will be active for small loads. If the load current
on VCC2 exceeds I
VCC2
> I
VCC2,Ipeak,r
then the high-power mode regulator will also be enabled to support an
optimum dynamic load behavior. The current consumption will then increase by typ. 2.9mA.
If the load current on VCC2 falls below the threshold (I
VCC2
< I
VCC2,Ipeak,f
), then the low-quiescent current mode
is resumed again by disabling the high-power mode regulator.
Both regulators are active in SBC Normal Mode.
Note:
If the VCC2 output voltage is supplying external off-board loads, the application must consider the
series resonance circuit built by cable inductance and decoupling capacitor at the load. Sufficient
damping must be provided.
7.2.1
Short to Battery Protection
The output stage is protected for short to VBAT.