OPTIREG™ linear TLE42344G
Low-dro pout linear voltage regulato r
Features
•
Output voltage tolerance ≤ ±2%
•
Low dropout voltage
•
Output current up to 100 mA
•
Very low current consumption
•
Overtemperature shutdown
•
Output current limitation
•
Suitable for use in automotive electronics
•
Reverse polarity protection
•
Green Product (RoHS compliant)
Potential applications
General automotive applications.
Product validation
Qualified for automotive applications. Product validation according to AEC-Q100.
Description
The TLE42344G is a 5-V low-dropout fixed-voltage regulator in a PG-SOT223-4 package. The IC regulates an
input voltage VI in the range 5.5 V < VI < 45 V to VQrated = 5.0 V. The maximum output current is more than
100 mA. This IC is protected against short circuit and overheating by the integrated output current limitation
and the overtemperature shutdown.
Type
Package
Marking
TLE42344G
PG-SOT223-4
42344
Datasheet
www.infineon.com/OPTIREG-linear
1
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Table of contents
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
2.1
2.2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
3.1
3.2
3.3
General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
Circuit description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5
5.1
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6
Typical performance characteristics voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7
7.1
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Further application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Datasheet
2
5
5
6
6
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Block diagram
1
Block diagram
Saturation
control and
protection
circuit
Temperature
sensor
Input
1
3
Control
amplifier
Adjustment
Output
Buffer
Bandgap
reference
2, 4
GND
AEB01527
Figure 1
Datasheet
Block diagram
3
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Pin configuration
2
Pin configuration
2.1
Pin assignment
4
1
2
3
I
GND
Q
AEP01526
Figure 2
Pin configuration
2.2
Pin definitions and functions
Table 1
Pin definitions and functions
Pin
Symbol
Function
1
I
Input voltage
Block to ground directly on the IC with ceramic capacitor
2, 4
GND
Ground
3
Q
5-V output voltage
Block to ground with capacitor ≥ 10 µF, ESR ≤ 10 Ω
Datasheet
4
Rev. 1.1
2023-05-22
OPTIREG™ TLE42344G
Low-dropout linear voltage regulator
General product characteristics
3
General product characteristics
3.1
Absolute maximum ratings
Table 2
Absolute maximum ratings1)
Tj = -40°C to +150°C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Parameter
Symbol
Values
Unit
Note or
Number
Test Condition
Min.
Typ.
Max.
VI
-30
–
45
V
–
P_4.1.1
VQ
-1
–
32
V
–
P_4.1.2
Junction temperature
Tj
-40
–
150
°C
–
P_4.1.3
Storage temperature
Tstg
-50
–
150
°C
–
P_4.1.4
VESD
-4
–
4
kV
2)
HBM
P_4.1.5
kV
3)
CDM
P_4.1.6
Input
Input voltage
Output
Output voltage
Temperatures
ESD susceptibility
ESD resistivity to GND
ESD resistivity to GND
VESD
-1.5
–
1.5
1) Not subject to production test, specified by design.
2) ESD susceptibility, HBM according to EIA/JESD 22-A114B.
3) ESD susceptibility, Charged Device Model “CDM” EIA/JESD22-C101 or ESDA STM5.3.1.
Notes
1. Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2. Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
datasheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not
designed for continuous repetitive operation.
Datasheet
5
Rev. 1.1
2023-05-22
OPTIREG™ TLE42344G
Low-dropout linear voltage regulator
General product characteristics
3.2
Functional range
Table 3
Functional range
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit
Note or
Test Condition
Number
Input voltage
VI
5.5
–
45
V
–
P_4.2.1
Junction temperature
Tj
-40
–
150
°C
–
P_4.2.2
Note:
Within the functional or operating range, the IC operates as described in the circuit description. The
electrical characteristics are specified within the conditions given in the electrical characteristics
table.
3.3
Thermal resistance
Note:
This thermal data was generated in accordance with JEDEC JESD51 standards. For more
information, go to www.jedec.org.
Table 4
Thermal resistance
Parameter
Junction to case
Symbol
RthJC
Values
Min.
Typ.
Max.
–
17
–
Unit
Note or Test Condition
Number
K/W
1)
P_4.3.1
Measured to heat slug
Junction to ambient
RthJA
–
54
–
K/W
1)2)
Junction to ambient
RthJA
–
139
–
K/W
1)3)
Footprint only
P_4.3.3
K/W
1)3)
300 mm2 heatsink area
P_4.3.4
K/W
1)3)
600 mm2 heatsink area
P_4.3.5
Junction to ambient
Junction to ambient
RthJA
RthJA
–
–
73
64
–
–
P_4.3.2
1) Not subject to production test, specified by design.
2) Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board. The product (chip
and package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with 2 inner copper layers (2 × 70 µm Cu,
2 × 35 µm Cu). Where applicable, a thermal via array under the exposed pad contacted the first inner copper layer.
3) Specified RthJA value is according to Jedec JESD 51-3 at natural convection on FR4 1s0p board. The product (chip and
package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with 1 copper layer (1 × 70 µm Cu).
Datasheet
6
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Circuit description
4
Circuit description
The control amplifier compares a reference voltage, which is kept highly precise by resistance adjustment, to
a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer.
Saturation control, working as a function of load current, prevents any oversaturation of the power element.
Dimensioning information on external components
The input capacitor Ci is necessary for compensating line influences. The output capacitor CQ is necessary for
the stability of the regulating circuit. Stability is guaranteed at values CQ ≥ 10 µF and an ESR ≤ 10 Ω within the
operating temperature range.
Datasheet
7
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Electrical characteristics
5
Electrical characteristics
5.1
Electrical characteristics voltage regulator
Table 5
Electrical characteristics
Tj = -40°C to +150°C; VI = 13.5 V; all voltages with respect to ground, positive current flowing into pin (unless
otherwise specified)
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit Note or
Test Condition
Number
Output voltage
VQ
4.9
5.0
5.1
V
5 mA ≤ IQ ≤ 100 mA
6 V ≤ VI ≤ 28 V
P_5.1.1
Output current limitation
IQ
120
160
–
mA
–
P_5.1.2
Current consumption
Iq = II - IQ
Iq
–
–
400
µA
IQ = 1 mA
P_5.1.3
Current consumption
Iq = II - IQ
Iq
–
9
15
mA
IQ = 100 mA
P_5.1.4
Drop voltage
Vdr
–
0.25
0.5
V
1)
IQ = 100 mA
P_5.1.5
Load regulation
∆VQ
–
–
40
mV
IQ = 5 to 100 mA
VI = 6 V
P_5.1.6
Line regulation
∆VQ
–
15
30
mV
VI = 6 to 28 V
IQ = 5 mA
P_5.1.7
Power supply ripple rejection
PSRR
–
54
–
dB
fr = 100 Hz
Vr = 0.5 Vpp
P_5.1.8
1) Drop voltage = VI - VQ (measured where VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V).
Datasheet
8
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Typical performance characteristics voltage regulator
6
Typical performance characteristics voltage regulator
Dropout voltage VDR versus
output current IQ
VDR
Current consumption Iq versus
input voltage VI
AED01978
800
mV
700
AED01979
15
I q mA
600
10
500
R L = 50 Ω
T j = 125 C
400
300
5
200
R L = 100 Ω
T j = 25 C
100
0
25
75
50
100
125
0
175
mA
10
0
20
30
IQ
VI
Current consumption Iq versus
output current IQ
Current consumption Iq versus
output current IQ
AED01980
12
40 V 50
AED01981
3.0
Iq mA
I q mA
10
2.5
8
2.0
V i = 13.5 V
6
1.5
4
1.0
V i = 13.5 V
2
0
0.5
0
50
100
mA
0
150
IQ
Datasheet
9
0
5
10
15
20
30
mA
IQ
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Typical performance characteristics voltage regulator
Output voltage VQ versus
temperature Tj
Output current IQ versus
input voltage VI
AED01982
5.20
VQ
AED01983
200
I Q mA
V
5.10
V i = 13.5 V
150
5.00
T j = 25 C
100
4.90
T j = 125 C
4.80
50
4.70
4.60
-40
0
40
80
0
120 C 160
Tj
0
10
20
30
40 V 50
VI
Output voltage VQ versus
input voltage VI
AED01984
6
VQ
V
R L = 50 Ω
5
4
3
2
1
0
0
2
4
6
8
V 10
VI
Datasheet
10
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Application information
7
Application information
Note:
The following information is given as a hint for the implementation of the device only and shall not
be regarded as a description or warranty of a certain functionality, condition or quality of the device.
1
Input
5.5 V to 45 V
Ci
3
TLE42344G
Output
10 μF
2, 4
TLE42344G
Figure 3
Application diagram
Note:
This is a very simplified example of an application circuit. The function must be verified in the real
application.
7.1
Further application information
For further information you may contact https://www.infineon.com/
Datasheet
11
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Package information
Package information
PD[
DFFWR
',1
PLQ
%
$
ÛPD[
8
Figure 4
0
$
0
%
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
(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
Datasheet
12
Rev. 1.1
2023-05-22
OPTIREG™ linear TLE42344G
Low-dropout linear voltage regulator
Revision history
9
Revision history
Revision
Date
Changes
Rev. 1.1
2023-05-22
Editorial changes
Rev. 1.0
2010-02-08
Initial datasheet
Datasheet
13
Rev. 1.1
2023-05-22
Trademarks
All referenced product or service names and trademarks are the property of their respective owners.
Edition 2023-05-22
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2023 Infineon Technologies AG.
All Rights Reserved.
Do you have a question about any
aspect of this document?
Email: erratum@infineon.com
Document reference
Z8F55246830
IMPORTANT NOTICE
The information given in this document shall in no
event be regarded as a guarantee of conditions or
characteristics ("Beschaffenheitsgarantie").
With respect to any examples, hints or any typical
values stated herein and/or any information regarding
the application of the product, Infineon Technologies
hereby disclaims any and all warranties and liabilities
of any kind, including without limitation warranties of
non-infringement of intellectual property rights of any
third party.
In addition, any information given in this document is
subject to customer's compliance with its obligations
stated in this document and any applicable legal
requirements, norms and standards concerning
customer's products and any use of the product of
Infineon Technologies in customer's applications.
The data contained in this document is exclusively
intended for technically trained staff. It is the
responsibility of customer's technical departments to
evaluate the suitability of the product for the intended
application and the completeness of the product
information given in this document with respect to
such application.
For further information on technology, delivery terms
and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
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dangerous substances. For information on the types
in question please contact your nearest Infineon
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