TLE 4254EJ S Infineon Technologies, TLE 4254EJ S Datasheet - Page 17

• Manufacturer Part Number: TLE 4254EJ S
• Manufacturer: Infineon Technologies

Specifications of TLE 4254EJ S

• Packages: PG-DSO-8
• Regulator Type: tracker
• Output Voltage: adj.
• Accuracy: 0.1 %
• Max. Output Current: 70mA
• Dropout Voltage: 200mV

Figure 7
For output voltages higher than the reference voltage, the voltage divider has to be applied between the feedback
and the output according to
(version GA / EJ A
Keep in mind that the input voltage has to be at minimum equal to the output voltage plus the dropout voltage of
the regulator.
With a given reference voltage
for
Data Sheet
R2
FB
VBAT
is given by:
Application circuit: Output voltage
only)
only). The equation for the output voltage with respect to the reference voltage is given by:
Application circuit: Output voltage VQ higher than reference voltage VREF
I
V
REF
Main µC supply
TLE4271-2
TLE6368...
, the desired output voltage
TLE4471
e.g.
GND
V
R2
Q
FB
=
Q
=
V
VREF
V
REF
R1
Q
FB
higher than reference voltage
⋅
17


5
8
⋅
R1
-------------------------------- -


---------------------------
V
EN/
ADJ
I
FB
R2
Q
V
TLE4254EJ A
+
–
TLE4254GA
2, 3, 6, 7
REF
FB
V
R2
V
REF
Q
FB
GND
and the resistor value




FB
Q
VDD
1
4
I/O
micro controller
TC17xx
R1
R2
XC16X
C167,
V
Application Information
e.g.
FB
FB
REF
R1
Rev. 1.2, 2009-11-18
(version GA / EJ A
FB
, the resistor value
VQ > VREF
TLE4254