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86
1) See packages on page 112
2) V
Q
> V
ref possible
www.infineon.com/voltage-regulators
Voltage
Regulator
Voltage
Tracker
External Load
(e.g. Sensor)
Load 1
I
ADJ
A Tracker requires
an external voltage
reference
V
Q
V
BAT
Applications
 Sensor supply
 Heat distribution on board
 Supply of 2
nd
µcontroller
Requirements
 Reverse voltage protection
 Small packages available
 Low quiescent current
Block Diagram Trackers
TLE4250-2 TLE4254 TLE4252 TLE4253 TLE4251
Output Current
Enable
50mA
YesNo
Feedback
Status
YesNo
Enable
YesNo
Feedback
YesNoYesNo
70mA 250mA 250mA 400mA
Tracker Family
Linear Voltage Regulators, Post Regulators,
Voltage Trackers and DC/DC Converters
Trackers
Product Type I
Q
[mA]
I
q
[mA]
V
S
Range
[V]
V
Q
[V]
Drop Voltage
[V]
Accuracy
[%]
Output Capacitance (min)
[µF]
V
Q
> V
ref
Possible Package
1)
TLE4250-2 50 140 4.0–40 adj. 0.1 0.5 1

20
TLE4251 400 230 4.0–40 adj. 0.28 0.2 22

33

37
TLE4252 250 100 3.5–40 adj. 0.28 0.2 10

33

37
TLE4253 250 100 3.5–40 adj.
2)
0.28 0.1 10
l

1

2
TLE4254 70 50 4.0–45 adj.
2)
0.28 0.1 1
l

1

2
Post Regulators
Product Type I
Q
[mA]
I
q
[mA]
V
S
Range
[V]
V
Q
[V]
Drop Voltage
[V]
Accuracy
[%]
Output Capacitance (min)
[µF]
Reset Adjustable Reset
Threshold
Enable Watchdog Early Warning Package
1)
TLS202B1
NEW!
150 50 2.7–18 3.3 0.5 3 1.0
l

20
TLS202A1
NEW!
150 50 2.7–18 adj. 0.5 3 1.0

20
TLS203B0
NEW!
300 30 2.3–20 adj.; 3.3 0.3 3 3.3
l

1

44
TLS205B0
NEW!
500 30 2.3–20 adj.; 3.3 0.3 3 3.3
l

1

44