Data Sheet
42
Rev. 1.00
2017-07-31
TLE9262BQXV33
Voltage Regulator 1
6.2
Functional Description
The Voltage Regulator 1 (=VCC1) is “ON” in SBC Normal and SBC Stop Mode and is disabled in SBC Sleep and
in SBC Fail-Safe Mode. The regulator can provide an output current up to I
VCC1,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
CC1,out41
) will be active for small loads. If the load current
on VCC1 exceeds the selected threshold (I
VCC1,Ipeak1,r
or I
VCC1,Ipeak2,r
) then the high-power mode regulator will be
also activated to support an optimum dynamic load behavior. The current consumption will then increase by
typ. 2.9mA.
If the load current on VCC1 falls below the selected threshold (I
VCC1,Ipeak1,f
or I
VCC1,Ipeak2,f
), then the low-quiescent
current mode is resumed again by disabling the high-power mode regulator.
Both regulators (low-power mode and high-power mode) are active in SBC Normal Mode.
Two different active peak thresholds can be selected via SPI:
•
I_PEAK_TH
= ‘0’(default): the lower VCC1 active peak threshold 1 is selected with lowest quiescent current
consumption in SBC Stop Mode (
I
Stop_1,25
,
I
Stop_1,85
);
•
I_PEAK_TH
= ‘1’: the higher VCC1 active peak threshold 2 is selected with an increased quiescent current
consumption in SBC Stop Mode (
I
Stop_2,25
,
I
Stop_2,85
);
