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Data Sheet
59
Rev. 1.00
2017-07-31
TLE9263BQXV33
External Voltage Regulator 3
Note:
There is no thermal protection available for the external PNP transistor. Therefore, the application
must be designed to avoid overheating of the PNP via the shunt current limitation in stand alone
configuration and by selecting the proper ICC1/ICC3 ratio in load-sharing configuration.
Note:
In SBC Stop Mode, the same output voltage tolerance applies as in SBC Normal Mode when I
VCC3
has
exceeded the selected active peak threshold (I
VCC3base,Ipeak
) but with increased current consumption.
3) At Tj > 125°C, the power transistor leakage could be increased, which has to be added to the quiescent current of the
application independently if the regulator is turned on/off. To prevent an overvoltage condition at no load due to this
increased leakage, an internal clamping structure will automatically turn on at typ. 200mV above the upper limit of
the programmed output voltage.
4) Not subject to production test, specified by design.
5) a) Ratio will change depending on the chosen shunt resistor which value is correlating to the maximum power
dissipation of the PNP pass device. See
Chapter 8.4
for the ratio calculation. The ratio will also change at low-drop
operation.
For supply voltages of 5.5V < VS < 6V the accuracy applies only for a total load current of 250mA.
The load sharing ratio in SBC Stop Mode has +/-10% wider limits than specified.
b) The output voltage precision in load sharing in SBC Stop Mode is according to VCC1 +/-4% or better for loads up to
20mA and +/-2% with loads greater than 20mA.
In SBC Normal the +/-2% precision for 5V/3.3V tolerance is valid regardless of the applied load.
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