Datasheet Rev. 2.61
www.infineon.com/OPTIREG-Linear 1 2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Features
•Output voltage 5V or 10V
• Output voltage tolerance ≤ ±2%
• 120 mA current capability
• Very low current consumption
• Low-drop voltage
• Overtemperature protection
• Reverse polarity proof
• Wide temperature range
•Suitable for use in automotive electronics
• Inhibit
• Green Product (RoHS compliant)
Potential applications
General automotive applications.
Product validation
Qualified for automotive applications. Product validation according to AEC-Q100/101.
Description
The OPTIREG™ Linear TLE4266G is a low-drop voltage regulator for 5 V or 10 V supply in a PG-SOT223-4 SMD
package. The IC regulates an input voltage VI in the range of 5.5 V/10.5 V < VI< 45 V to VQ,nom = 5 V/10 V. The
maximum output current is more than 120 mA. The IC can be switched off via the inhibit input, which causes
the current consumption to drop below 10 A. The IC is shortcircuit-proof and incorporates a temperature
protection which turns off the IC at overtemperature.
Choosing external components
The input capacitor CI is necessary for compensating line influences. Using a resistor of approx. 1  in series
with CI, the oscillating of input line inductivity and input capacitance can be clamped. The output capacitor CQ
is necessary for the stability of the regulating circuit. Stability is guaranteed at values CQ≥10 F and an
ESR ≤ 10  within the whole operating temperature range.
Datasheet 2 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Type Package Marking
TLE4266G PG-SOT223-4 4266 G
TLE4266GSV10 PG-SOT223-4 66GV10
Datasheet 3 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table of contents
Datasheet 4 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Block diagram
1 Block diagram
Figure 1 Block diagram
42
Reference
Bandgap
Adjustment
Sensor
Temperature Saturation
Control and
Protection
Circuit
Control
Amplifier Buffer
Q
1
INH GND
AEB01725
Ι3
Datasheet 5 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Pin configuration
2 Pin configuration
2.1 Pin assignment
Figure 2 Pin configuration (top view)
2.2 Pin definitions and functions
Table 1 Pin definitions and functions
Pin Symbol Function
1IInput voltage
Block to ground directly at the IC with a ceramic capacitor.
2INH
Inhibit input
Low-active input.
3QOutput voltage
Block to ground with a capacitor CQ ≥ 10 F.
4GNDGround
AEP01734
ΙINH Q
GND
123
4
Datasheet 6 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
General product characteristics
3 General product characteristics
3.1 Absolute maximum ratings
Table 2 Absolute maximum ratings (TLE4266G, TLE4266GSV10)
-40°C ≤ Tj ≤ 150°C
Parameter Symbol Values Unit Note or Test Condition
Min. Typ. Max.
Input I
Voltage VI-42 – 45 V –
Current II––––Internally limited
Inhibit INH
Voltage VINH -42 – 45 V –
Output Q
Voltage VQ-1 – 32 V –
Current IQ––––Internally limited
GND
Current IGND 50 – – mA –
Temperature
Junction temperature Tj– – 150 °C –
Storage temperature TS-50 – 150 °C –
Operating range (TLE4266G)
Input voltage VI5.5 – 45 V –
Junction temperature Tj-40 – 150 °C –
Operating range (TLE4266GSV10)
Input voltage VI10.5 – 45 V –
Junction temperature Tj-40 – 150 °C –
Thermal resistance
Junction ambient Rthj-a – – 165 K/W 1)
1) Package mounted on PCB 80×80×1.5mm; 35mCu; 5mSn; Footprint only; zero airflow.
Junction case Rthj-pin – – 17 K/W Measured to pin 4
Datasheet 7 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Functional description
4 Functional description
The device includes a precise reference voltage, which is very accurate due to resistor adjustment. A control
amplifier compares the divided output voltage to this reference voltage and drives the base of the PNP series
transistor through a buffer.
Saturation control as a function of the load current prevents any oversaturation of the power element. The IC
also incorporates a number of protection circuitry for:
•Overload
• Overtemperature
• Reverse polarity
4.1 Electrical characteristics
Table 3 Electrical characteristics (TLE4266G)
VI = 13.5 V; -40°C ≤ Tj ≤ 125°C (unless otherwise specified)
Parameter Symbol Values Unit Note or Test Condition
Min. Typ. Max.
Output voltage VQ4.9 5 5.1 V 5 mA ≤ IQ ≤ 100 mA;
6V ≤ Vi ≤ 28 V
Output-current limitation IQ120 150 – mA –
Current consumption
Iq = Ii - IQ
Iq––10AVINH = 0 V;
Tj ≤ 100°C
Current consumption
Iq = Ii - IQ
Iq– – 400 A IQ = 1 mA
Inhibit ON
Current consumption
Iq = Ii - IQ
Iq–1015mAIQ = 100 mA
Inhibit ON
Drop voltage VDr –0.250.5VIQ = 100 mA1)
1) Drop voltage VDr =Vi-VQ (measured when the output voltage VQ has dropped 100 mV from the nominal value obtained
at Vi= 13.5 V).
Load regulation ∆VQ,lo ––40mVIQ = 5 to 100 mA;
Vi = 6 V
Line regulation ∆VQ,li –1530mVVI = 6 V to 28 V;
IQ = 5 mA
Power supply ripple
rejection
PSRR –54–dBƒr = 100 Hz;
Vr = 0.5 Vpp
Inhibit
Inhibit on voltage VINH, on 3.5 – – V –
Inhibit off voltage VINH, off ––0.8V–
Inhibit current IINH 51525AVINH = 5 V
Datasheet 8 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Functional description
Table 4 Electrical characteristics (TLE4266GSV10)
VI = 13.5 V; -40°C ≤ Tj ≤ 125°C
Parameter Symbol Values Unit Note or Test Condition
Min. Typ. Max.
Output voltage VQ9.8 10 10.2 V 5 mA ≤ IQ ≤ 100 mA;
11 V ≤ VI ≤ 21 V
Output voltage VQ9.8 10 10.2 V 1 mA ≤ IQ ≤ 50 mA;
11 V ≤ VI ≤ 28 V
Output-current limitation IQ120 150 200 mA –
Current consumption
Iq = II - IQ
Iq,off ––10AVINH = 0 V;
Tj ≤ 100°C
Current consumption
Iq = II - IQ
Iq– 350 500 A IQ < 1 mA
Inhibit ON
Current consumption
Iq = II - IQ
Iq–715mAIQ < 100 mA
Inhibit ON
Drop voltage VDr –0.280.5VIQ = 100 mA1)
1) Drop voltage = VI - VQ measured when the output voltage VQ has dropped 100 mV from the nominal value.
Load regulation ∆VQ,Lo -80 – 80 mV IQ = 5 to 100 mA;
VI = 11 V
Line regulation ∆VQ,Li -30 5 30 mV VI = 11 V to 28 V;
IQ = 5 mA
Power supply ripple
rejection
PSRR –54–dBƒr = 100 Hz;
Vr = 0.5 Vpp
Inhibit
Inhibit on voltage VINH, on 3.5 – – V –
Inhibit off voltage VINH, off ––0.8V–
Inhibit current IINH 51225AVINH = 5 V
Datasheet 9 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Functional description
4.2 Circuit description
Figure 3 Measuring circuit (TLE4266G, TLE4266GSV10)
Figure 4 Application circuit (TLE4266G, TLE4266GSV10)
TLE 4266G
nF100
470 µF
V
INH
V
Input
5.5 V/10.5 V to 45 V
Ι
e
Ι
V
Q
µF22
Ι
Q
AES01726
Output
ΙQ
INH GND
Ι
Ι
TLE 4266G
Input
5.5 V/10.5 V to 45 V
µF22
AES01727
C
Output
Q
C
e.g. Kl. 15 GND
Ι
ΙQ
INH
Datasheet 10 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Functional description
4.3 Typical performance characteristics
Drop voltage VDr versus
output current IQ (5 V, 10 V)
Current consumption Iq versus
output current IQ (5 V)
Current consumption Iq versus
output current IQ (5 V version)
Current consumption Iq versus
output current IQ (10 V version)
DR
V
Ι
Q
025
AED01978
100
200
300
400
500
600
mV
800
50 100 mA 175
75 125
=C125
25 C=
700
j
T
j
T
Ι
Q
00
AED01980
mA 15050 100
Ι
q
2
4
6
8
mA
12
V
i
= 13.5 V
10
Ι
Q
00
AED01981
mA 3010 20
Ι
q
0.5
1.0
1.5
2.0
mA
3.0
Vi= 13.5 V
515
2.5
Ι
Q
00
AED01981
mA 3010 20
Ι
q
0.5
1.0
1.5
2.0
mA
3.0
Vi= 13.5 V
515
2.5
Datasheet 11 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Functional description
Current consumption Iq versus
input voltage VI (5 V version)
Current consumption Iq versus
input voltage VI (10 V version)
Output voltage VQ versus
temperature Tj (5 V version)
Output voltage VQ versus
temperature Tj (10 V version)
00
AED03013
R=
Ι
q
V
L50 Ω
10 20 30 V50
5
10
mA
15
Ω100
L=R
Ι
40
4.60
-40
AED03014
V
Q
04080 160
4.80
5.00
V
5.20
120 C
4.70
4.90
5.10
i
V= 13.5 V
j
T
9.20
-40
AED02735
V
Q
04080 160
9.60
10.00
V
10.40
120 C
9.40
9.80
10.20
i
V= 13.5 V
j
T
Datasheet 12 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Functional description
Output voltage VQ versus
input voltage VI (5 V version)
Output voltage VQ versus
input voltage VI (10 V version)
Output voltage VQ versus
inhibit voltage VINH (5 V version)
Output voltage VQ versus
inhibit voltage VINH (10 V version)
00
AED01984
VQ
24610
2
4
V
6
8
1
3
5
L
R=50Ω
Ι
V
V
00
AED02014
VQ
2
4
V
6
1
3
5
Ι
V= 13.5 V
INH
V
V
123456
=VΙINH
V
Datasheet 13 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Functional description
Output current IQ versus
input voltage VI (5 V version)
Output current IQ versus
input voltage VI (10 V version)
00
AED03015
= C125
25 C
=
Q
Ι
V
Ι
10 20 30 40 50
50
100
150
200
mA
V
j
T
j
T
00
AED02751
= C125
25 C
=
Q
Ι
V
Ι
10 20 30 40 50
50
100
150
200
mA
V
j
T
j
T
Datasheet 14 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Package information
5 Package information
Figure 5 PG-SOT223-4 (plastic small outline transistor)1)
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products and to be compliant
with government regulations the device is available as a green product. Green products are RoHS-Compliant
(i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).
Further information on packages
https://www.infineon.com/packages
1) Dimensions in mm
±0.1
±0.2
±0.1
0.7
4
3
21
6.5
3
acc. to
+0.2
DIN 6784
1.6
±0.1
15˚max
±0.04
0.28
7
±0.3
±0.2
3.5
0.5
0.1 max
min
B
M
0.25
B
A
2.3
4.6
A
M
0.25
Datasheet 15 Rev. 2.61
2019-06-03
OPTIREG™ Linear TLE4266G
5 V/10 V low drop voltage regulator
Revision history
6 Revision history
Revision Date Changes
2.61 2019-06-03 Editorial change, added marking
2.6 2019-02-15 Updated layout and structure.
Editorial changes.
2.5 2008-03-10 Simplified package name to PG-SOT223-4.
No modification of released product.
2.4 2007-03-20 Initial version of RoHS-compliant derivate of TLE4266.
AEC certified statement added.
RoHS compliance statement and Green product feature added.
Package changed to RoHS compliant version.
Legal Disclaimer updated.
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2019-06-03
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2019 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about any
aspect of this document?
Email: erratum@infineon.com
Document reference
Z8F55276374
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