TLE6368_06 Datasheet, PDF (11/59 Pages) Infineon Technologies AG – Multi-Voltage Processor Power Supply

TLE 6368 / SONIC
Power Sequencing
V_{FB/L_IN}
V_{LDO_EN}
V_{Q_LDO1}
5V
V_Rth5
3.3V
2.6V
V_{Q_LDO2} (2.6V Mode)
2.6V
V_Rth2.6
0.7V
5V LDO
5V LDO
V_{Q_LDO3} (3.3V Mode)
3.3V
V_Rth3.3
5V LDO
+/- 50mV
5V LDO
Figure 4 Power-up and -down sequencing of the regulators
t
t
0.7V
t
+/- 50mV
t
2.2.2 Q_LDO2 and Q_LDO3 output voltage selection*
To determine the output voltage levels of the three linear regulators, the selection pin
(SEL, pin 23) has to be connected according to the matrix given in the table below.
Definition of Output voltage Q_LDO2 and Q_LDO3
Select Pin SEL Q_LDO2
Q_LDO3
connected to output voltage output voltage
GND
3.3 V
3.3 V
Q_LDO1
2.6 V
2.6 V
Q_LDO2
2.6 V
3.3 V
* for different output voltages please refer to the multi voltage supply TLE6361
Data Sheet
11
Rev. 2.2, 2006-12-01