OPTIREG™ linear TLE42644G
Low dropout fi xed voltage regulator
Features
•
Output voltage 5 V ± 2% up to output currents of 50 mA
•
Output voltage 5 V ± 3% up to output currents of 100 mA
•
Very low dropout voltage
•
Very low current consumption: typ. 40 µA
•
Output current limitation
•
Reverse polarity protection
•
Overtemperature shutdown
•
Wide temperature range from -40°C up to +150°C
•
Suitable for use in automotive electronics
•
Green Product (RoHS compliant)
Potential applications
General automotive applications.
Product validation
Qualified for automotive applications. Product validation according to AEC-Q100.
Description
The TLE42644G is a monolithic integrated low dropout fixed voltage regulator for load currents up to 100 mA.
It is the 1-to-1 replacement product for the TLE4264-2G. It is functionally compatible to the TLE4264G, but has
a reduced quiescent current of typ. 40 µA. The TLE42644G is especially designed for applications requiring
very low standby currents, e.g. with a permanent connection to the car’s battery. The device is available in the
small surface mounted PG-SOT223-4 package and is pin compatible to the TLE4264-2G and the TLE4264G. The
device is designed for the harsh environment of automotive applications. Therefore it is protected against
overload, short-circuit and overtemperature conditions by the implemented output current limitation and the
overtemperature shutdown circuit. The TLE42644G can be also used in all other applications requiring a
stabilized 5 V voltage.
An input voltage up to 45 V is regulated to VQ,nom = 5 V with a precision of ±3%. An accuracy of ±2% is achieved
for load currents up to 50 mA.
Type
Package
Marking
TLE42644G
PG-SOT223-4
42644
Datasheet
www.infineon.com/OPTIREG-linear
1
Rev. 1.11
2023-08-02
OPTIREG™ linear TLE42644G
Low dropout fixed voltage regulator
Block diagram
1
Block diagram
Saturation
Control and
Protection
Circuit
Temperature
Sensor
Input
I
Q
Control
Amplifier
Adjustment
Output
Buffer
Bandgap
Reference
GND
GND
AEB02870
Figure 1
Datasheet
Block diagram
2
Rev. 1.11
2023-08-02
OPTIREG™ linear TLE42644G
Low dropout fixed voltage regulator
Pin configuration
2
Pin configuration
2.1
Pin assignment PG-SOT223-4
GND
4
1
2
3
I
GND
Q
AEP02868
Figure 2
Pin configuration (top view)
2.2
Pin definitions and functions PG-SOT223-4
Pin no.
Symbol Function
1
I
Input
Block to ground directly at the IC with a ceramic capacitor
2
GND
Ground
3
Q
Output
Block to ground with a capacitor close to the IC terminals, respecting the values
given for its capacitance and ESR in “Functional range” on Page 4
4 / Heat slug
GND
Ground / Heat slug
Internally connected to leadframe and GND;
connect to GND and heatsink area
Datasheet
3
Rev. 1.11
2023-08-02
OPTIREG™ linear TLE42644G
Low dropout fixed voltage regulator
General product characteristics
3
General product characteristics
3.1
Absolute maximum ratings
Table 1
1)
Absolute maximum ratings
Tj = -40°C to +150°C; all voltages with respect to ground, (unless otherwise specified)
Parameter
Symbol
Values
Unit
Note or
Test Condition
Number
Min.
Typ.
Max.
VI
-30
–
45
V
–
P_4.1.1
VQ
-0.3
–
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
ESD absorption
VESD,HBM
-3
–
3
kV
2)
P_4.1.5
ESD absorption
VESD,CDM
-1500
–
1500
V
3)
Input I
Voltage
Output Q
Voltage
Temperature
ESD susceptibility
Human body
model (HBM)
Charge device
P_4.1.6
model (CDM) at all
pins
1) not subject to production test, specified by design.
2) ESD susceptibility human body model “HBM” according to AEC-Q100-002 - JESD22-A114.
3) ESD susceptibility charged device model “CDM” according to 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.
3.2
Functional range
Table 2
Functional range
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit
Note or
Test Condition
Number
Input voltage
VI
5.5
–
40
V
–
P_4.2.1
Output capacitor’s
requirements for stability
CQ
10
–
–
µF
–
P_4.2.2
Datasheet
4
Rev. 1.11
2023-08-02
OPTIREG™ linear TLE42644G
Low dropout fixed voltage regulator
General product characteristics
Table 2
Functional range (cont’d)
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit
Note or
Test Condition
Number
Output capacitor’s
requirements for stability
ESR(CQ)
–
–
2
Ω
1)
P_4.2.3
Junction temperature
Tj
-40
–
150
°C
–
P_4.2.4
1) Relevant ESR value at f = 10 kHz.
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 3
1)
Thermal resistance
Parameter
Symbol
Values
Min.
Typ.
Max.
–
17
–
Unit
Note or Test Condition
Number
K/W
measured to heat slug
P_4.3.1
K/W
2)
FR4 2s2p board
P_4.3.2
TLE42644G (PG-SOT223-4)
Junction to case
Junction to ambient
RthJC
RthJA
–
54
–
Junction to ambient
RthJA
–
139
–
K/W
3)
FR4 1s0p board,
footprint only
P_4.3.3
Junction to ambient
RthJA
–
73
–
K/W
3)
FR4 1s0p board,
300 mm2 heatsink area
P_4.3.4
Junction to ambient
RthJA
–
64
–
K/W
3)
P_4.3.5
FR4 1s0p board,
600 mm2 heatsink area
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
5
Rev. 1.11
2023-08-02
OPTIREG™ linear TLE42644G
Low dropout fixed voltage regulator
Electrical characteristics
4
Electrical characteristics
4.1
Electrical characteristics voltage regulator
Table 4
Electrical characteristics
VI = 13.5 V; Tj = -40°C to +150°C; all voltages with respect to ground (unless otherwise specified)
Parameter
Symbol
Values
Min.
Typ.
Max.
Unit
Note or Test Condition Number
Output Q
Output voltage
VQ
4.9
5.0
5.1
V
5 mA < IQ< 50 mA
6 V < VI < 16 V
P_5.1.1
Output voltage
VQ
4.85
5.0
5.15
V
5 mA < IQ
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