Automotive Power
Data Sheet
Rev. 1.1, 2014-07-03
TLE42664
Low Dropout Fixed Voltage Regulator
TLE42664G
PG-SOT223-4
Type Package Marking
TLE42664G PG-SOT223-4 42664
Data Sheet 2 Rev. 1.1, 2014-07-03
Low Dropout Fixed Voltage Regulator
TLE42664G
1Overview
Features
• Output Voltage 5 V ± 2 % up to Output Currents of 50 mA
• Output Voltage 5 V ± 3 % up to Output Currents 100 mA
• Very Low Dropout Voltage
• Very Low Current Consumption: typ. 40 µA
• Enable Input
• 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)
• AEC Qualified
Description
The TLE42664 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 TLE4266-2. It is functional compatible to the TLE4266, but has a reduced
quiescent current of typ. 40 µA. The TLE42664 is especially designed for applications requiring very low standby
currents, e.g. with a permanent connection to the car’s battery. It can be disabled/enabled by the integrated EN
pin. The device is available in the small surface mounted PG-SOT223-4 package and is pin compatible to the
TLE4266-2 and the TLE4266. 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 TLE42664 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 kept for
load currents up to 50 mA. A logical “HIGH” at the ENABLE pin enables the device.
TLE42664
Block Diagram
Data Sheet 3 Rev. 1.1, 2014-07-03
2 Block Diagram
Figure 1 Block Diagram
GNDEN
Reference
Bandgap
Adjustment
Sensor
Temperature Saturation
Control and
Protection
Circuit
Control
Amplifier Buffer
GND
AEB02874-2
ΙQ
Data Sheet 4 Rev. 1.1, 2014-07-03
TLE42664
Pin Configuration
3 Pin Configuration
3.1 Pin Assignment PG-SOT223-4
Figure 2 Pin Configuration (top view)
3.2 Pin Definitions and Functions PG-SOT223-4
Pin No. Symbol Function
1IInput
block to ground directly at the IC with a ceramic capacitor
2ENEnable Input
high level enables the device;
low level disables the device;
integrated pull-down resistor
3QOutput
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 5
4 / Heat Slug GND Ground / Heat Slug
internally connected to leadframe and GND;
connect to GND and heatsink area
AEP02872-2
ΙEN
GND
123
4
Q
TLE42664
General Product Characteristics
Data Sheet 5 Rev. 1.1, 2014-07-03
4 General Product Characteristics
4.1 Absolute Maximum Ratings
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
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not
designed for continuous repetitive operation.
4.2 Functional Range
Table 1 Absolute Maximum Ratings1)
Tj =-40 °C to 150 °C; all voltages with respect to ground, (unless otherwise specified)
1) not subject to production test, specified by design
Parameter Symbol Values Unit Note /
Test Condition
Number
Min. Typ. Max.
Input I, Enable EN
Voltage VI, VEN -30 – 45 V – P_4.1.1
Output Q
Voltage VQ-0.3 – 32 V – P_4.1.2
Temperature
Junction temperature Tj-40 – 150 °C – P_4.1.3
Storage temperature Tstg -50 – 150 °C – P_4.1.4
ESD Susceptibility
ESD Absorption VESD,HBM -3 – 3 kV Human Body Model
(HBM)2)
2) ESD susceptibility Human Body Model “HBM” according to AEC-Q100-002 - JESD22-A114
P_4.1.5
ESD Absorption VESD,CDM -1500 – 1500 V Charge Device
Model (CDM)3) at all
pins
3) ESD susceptibility Charged Device Model “CDM” according to ESDA STM5.3.1
P_4.1.6
Table 2 Functional Range
Parameter Symbol Values Unit Note / Test Condition Number
Min. Typ. Max.
Input voltage VI5.5 – 40 V P_4.2.1
Output Capacitor’s
Requirements for Stability
CQ10 – – µF – P_4.2.2
Data Sheet 6 Rev. 1.1, 2014-07-03
TLE42664
General Product Characteristics
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.
4.3 Thermal Resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go
to www.jedec.org.
Output Capacitor’s
Requirements for Stability
ESR(CQ)––21) P_4.2.3
Junction temperature Tj-40 – 150 °C – P_4.2.4
1) relevant ESR value at f=10kHz
Table 3 Thermal Resistance
Parameter Symbol Values Unit Note / Test Condition Number
Min. Typ. Max.
TLE42664G (PG-SOT223-4)
Junction to Case1)
1) Not subject to production test, specified by design.
RthJC – 17 – K/W measured to heat slug P_4.3.1
Junction to Ambient1) RthJA – 54 – K/W FR4 2s2p board2)
2) Specified RthJA value is according to Jedec JESD51-2,-5,-7 at natural convection on FR4 2s2p board; The Product
(Chip+Package) was simulated on a 76.2 x 114.3 x 1.5 mm³ board with 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu).
Where applicable a thermal via array under the exposed pad contacted the first inner copper layer.
P_4.3.2
Junction to Ambient1) RthJA – 139 – K/W FR4 1s0p board,
footprint only3)
3) Specified RthJA value is according to Jedec JESD 51-3 at natural convection on FR4 1s0p board; The Product
(Chip+Package) was simulated on a 76.2 × 114.3 × 1.5 mm3 board with 1 copper layer (1 x 70µm Cu).
P_4.3.3
Junction to Ambient1) RthJA – 73 – K/W FR4 1s0p board,
300 mm² heatsink area3)
P_4.3.4
Junction to Ambient1) RthJA – 64 – K/W FR4 1s0p board,
600 mm² heatsink area3)
P_4.3.5
Table 2 Functional Range (cont’d)
Parameter Symbol Values Unit Note / Test Condition Number
Min. Typ. Max.
TLE42664
Electrical Characteristics
Data Sheet 7 Rev. 1.1, 2014-07-03
5 Electrical Characteristics
5.1 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 Unit Note / Test Condition Number
Min. Typ. Max.
Output Q
Output Voltage VQ4.95.05.1V 5mA<IQ<50mA
6V<VI<16V
P_5.1.1
Output Voltage VQ4.85 5.0 5.15 V 5 mA < IQ<100 mA
6V<VI<21V
P_5.1.2
Output Voltage At Low Output
Currents
VQ4.80 5.0 5.20 V 100 µA < IQ<5 mA
6V<VI<21V
P_5.1.3
Dropout Voltage Vdr –250500mVIQ= 100 mA
Vdr =VI–VQ1)
P_5.1.4
Load Regulation VQ, lo – 5090mVIQ= 1 mA to 100 mA
VI=13.5V
P_5.1.5
Line Regulation VQ, li –530mVVl= 6 V to 28 VIQ= 1 mA P_5.1.6
Output Current Limitation IQ150 200 500 mA 1)
1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V.
P_5.1.7
Power Supply Ripple Rejection2)
2) not subject to production test, specified by design
PSRR –68–dBfr=100Hz; Vr= 0.5 Vpp P_5.1.8
Overtemperature Shutdown
Threshold
Tj,sd 151– 200°C Tj increasing P_5.1.9
Overtemperature Shutdown
Threshold Hysteresis
Tj,sdh –25–°CTj decreasing P_5.1.10
Current Consumption
Current Consumption
Device Disabled
Iq,OFF –01µAVEN =0V; Tj< 100 °C P_5.1.11
Quiescent Current
Iq=II–IQ
Iq– 4060µA IQ= 100 µA, Tj< 85 °C P_5.1.12
Quiescent Current
Iq=II–IQ
Iq– 4070µA IQ= 100 µA P_5.1.13
Current Consumption
Iq=II–IQ
Iq–1.74mAIQ= 50 mA P_5.1.14
Enable Input
High Level Input Voltage VEN,ON 3.5 – – V – P_5.1.15
Low Level Input Voltage VEN,OFF – – 0.8 V – P_5.1.16
Enable Input Current IEN,ON –48µAVEN = 5 V P_5.1.17
Pull-down Resistor REN –1.0–M– P_5.1.18
Data Sheet 8 Rev. 1.1, 2014-07-03
TLE42664
Electrical Characteristics
5.2 Typical Performance Characteristics Voltage Regulator
Current Consumption Iq versus
Output Current IQ
Current Consumption Iq versus
Low Output Current IQ
Output Voltage Variation VQ versus
Junction Temperature TJ
Dropout Voltage Vdr versus
Output Current IQ
AED03342.VSD
0
IQ
20 40 60 80 100 120 mA 160
0
1
2
3
4
5
6
7
8
mA
Iq
AED03341.VSD
0
IQ
2 4 6 8 10 12 mA 16
0
50
100
150
200
250
300
350
400
µA
Iq
AED03344.VSD
-40
Tj
0 40 80 °C 160
V
VQIQ = 5 mA
4.90
4.95
5.00
5.05
5.10
5.15
AED03385.VSD
0
I
Q
20 40 60 80 100120 mA160
0
50
100
150
200
250
300
350
400
mV
V
dr
T
j
= 25°C
T
j
= -40°C
TLE42664G
T
j
= 125°C
TLE42664
Electrical Characteristics
Data Sheet 9 Rev. 1.1, 2014-07-03
Output Voltage VQ versus
Input Voltage VI
Maximum Output Current IQ versus
Input Voltage VI
Region Of Stability: Output Capacitor’s ESR
ESR(CQ) versus Output Current IQ
Enable Input Current IEN versus
Enable Input Voltage VEN
AED03386.VSD
0
V
I
V
Q
246810
0
2
4
6
8
10
V
V
R
L
= 50 Ω
V
EN
= 5 V
AED03387.VSD
0
50
100
150
200
250
300
350
400
450
010203040
V
I [V]
I
Q,max [mA]
T
j
= -40 °C
T
j
= 25 °C
T
j
= 150 °C
V
EN
= 5 V
AED03384.VSD
0
V
EN
123456 V8
0
1
2
3
4
5
6
7
8
µA
I
EN
Data Sheet 10 Rev. 1.1, 2014-07-03
TLE42664
Application Information
6 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.
6.1 Application Diagram
Figure 3 Application Diagram
6.2 Selection of External Components
6.2.1 Input Pin
The typical input circuitry for a linear voltage regulator is shown in the application diagram above.
A ceramic capacitor at the input, in the range of 100 nF to 470 nF, is recommended to filter out the high frequency
disturbances imposed by the line e.g. ISO pulses 3a/b. This capacitor must be placed very close to the input pin
of the linear voltage regulator on the PCB.
An aluminum electrolytic capacitor in the range of 10 µF to 470 µF is recommended as an input buffer to smooth
out high energy pulses, such as ISO pulse 2a. This capacitor should be placed close to the input pin of the linear
voltage regulator on the PCB.
An overvoltage suppressor diode can be used to further suppress any high voltage beyond the maximum rating
of the linear voltage regulator and protect the device against any damage due to over-voltage.
The external components at the input are not mandatory for the operation of the voltage regulator, but they are
recommended in case of possible external disturbances.
6.2.2 Output Pin
An output capacitor is mandatory for the stability of linear voltage regulators.
The requirement to the output capacitor is given in “Functional Range” on Page 5. The graph “Region Of
Stability: Output Capacitor’s ESR ESR(CQ) versus Output Current IQ” on Page 9 shows the stable operation
range of the device.
Supply
100nF10µF
CI1
CI2
Regulated
Output Voltage
IQ
CQ
<45V
DI
Load
(e.g.
Micro
Controller)
GND
II
10µF
(ESR<2)
Bandgap
Reference
GND
Q
I
Temperature
Shutdown
EN
Enable
Current
Limitation
E.g.
Ignition
TLE42664
Application Information
Data Sheet 11 Rev. 1.1, 2014-07-03
TLE42664 is designed to be stable with extremely low ESR capacitors. According to the automotive environment,
ceramic capacitors with X5R or X7R dielectrics are recommended.
The output capacitor should be placed as close as possible to the regulator’s output and GND pins and on the
same side of the PCB as the regulator itself.
In case of rapid transients of input voltage or load current, the capacitance should be dimensioned in accordance
and verified in the real application that the output stability requirements are fulfilled.
6.3 Thermal Considerations
Knowing the input voltage, the output voltage and the load profile of the application, the total power dissipation
can be calculated:
(1)
with
•PD: continuous power dissipation
•VI: input voltage
•VQ: output voltage
•IQ: output current
•Iq: quiescent current
The maximum acceptable thermal resistance RthJA can then be calculated:
(2)
with
•Tj,max: maximum allowed junction temperature
•Ta: ambient temperature
Based on the above calculation the proper PCB type and the necessary heat sink area can be determined with
reference to the specification in “Thermal Resistance” on Page 6.
Example
Application conditions:
VI= 13.5 V
VQ= 5 V
IQ= 50 mA
Ta= 105 °C
Calculation of RthJA,max:
PD=(VI – VQ) • IQ + VI • Iq
= (13.5 V – 5 V) • 50 mA + 13.5 V • 4 mA
= 0.425 W + 0.054 W
=0.479W
PDVIVQ
–()IQVIIq
×+×=
RthJA max,
Tjmax,Ta
–
PD
----------------------------=
Data Sheet 12 Rev. 1.1, 2014-07-03
TLE42664
Application Information
RthJA,max =(Tj,max – Ta) / PD
= (150 °C – 105 °C) / 0.479 W
= 93.9 K/W
As a result, the PCB design must ensure a thermal resistance RthJA lower than 93.9 K/W. By considering
TLE42664G (PG-SOT223-4 package) and according to “Thermal Resistance” on Page 6, at least 300 mm²
heatsink area is needed on the FR4 1s0p PCB, or the FR4 2s2p board can be used.
6.4 Reverse Polarity Protection
TLE42664 is self protected against reverse polarity faults and allows negative supply voltage. External reverse
polarity diode is not needed. However, the absolute maximum ratings of the device as specified in “Absolute
Maximum Ratings” on Page 5 must be kept.
The reverse voltage causes several small currents to flow into the IC hence increasing its junction temperature.
As the thermal shut down circuitry does not work in the reverse polarity condition, designers have to consider this
in their thermal design.
TLE42664
Package Outlines
Data Sheet 13 Rev. 1.1, 2014-07-03
7 Package Outlines
Figure 4 PG-SOT223-4
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).
SOT223-PO V04
123
3
4
±0.1
±0.04
0.5 MIN.
0.28
0.1 MAX.
6.5 ±0.2
A
4.6
2.3
0.7 ±0.1
0.25 MA
1.6±0.1
7
±0.3
B0.25 M
±0.2
3.5
B
0...10˚
For further information on alternative packages, please visit our website:
http://www.infineon.com/packages.Dimensions in mm
Data Sheet 14 Rev. 1.1, 2014-07-03
TLE42664
Revision History
8 Revision History
Revision Date Changes
1.0 2009-06-26 initial version data sheet
1.01 2009-09-30 updated version data sheet; typing error corrected in Table 1 “Absolute
Maximum Ratings” on Page 5: In Voltage min. value corrected from “-42V” to “-
30V”
1.1 2014-07-03 Application information added
Edition 2014-07-03
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2014 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, 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.
Information
For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
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