TLE4263-2ES
5-V Low Dropout Voltage Regulator
Data Sheet, Rev. 1.0, April 2008
Automotive Power
PG-DSO-8 exposed pad
Type Package Marking
TLE4263-2ES PG-DSO-8 exposed pad 4263-2
Data Sheet 2 Rev. 1.0, 2008-04-21
5-V Low Dropout Voltage Regulator
TLE4263-2ES
1Overview
Features
• Exposed Pad Package with Excellent Thermal Behaviour
• Output Voltage Tolerance ≤ ±2%
• Output Current up to 180 mA
• Very Low Standby Current Consumption
• Watchdog for Monitoring a Microprocessor
• Power-on and Undervoltage Reset with Programmable Delay Time
• Reset Low down to VQ = 1 V
• Adjustable Reset Threshold
• Very Low Dropout Voltage
• Output Current Limitation
• Reverse Polarity Protection
• Overtemperature Protection
• Wide Temperature Range from -40 °C up to 150 °C
• Input Voltage Range from -42 V to 45 V
• Suitable for Use in Automotive Electronics
• Green Product (RoHS compliant)
• AEC Qualified
Description
TLE4263-2ES is a monolithic integrated very low dropout voltage regulator in a SMD package PG-DSO-8 exposed
pad, especially designed for automotive applications. An input voltage up to 45 V is regulated to an output voltage
of 5.0 V. The component is able to drive loads up to 180 mA. The IC is short-circuit proof by the implemented
current limitation and has an integrated overtemperature shutdown.
It additionally provides features like power-on and undervoltage reset with adjustable reset threshold, a watchdog
circuit for monitoring a connected microcontroller and an inhibit input for enabling or disabling the component.
The reset output RO is set to “low” in case the output voltage falls below the reset switching threshold VQ,rt. This
threshold can be decreased down to 3.5 V by an external resistor divider. The power-on reset delay time can be
programmed by the external delay capacitor CD.
The watchdog circuit provides a monitoring function for microcontrollers: At missing pulses on the watchdog’s
input W the reset output RO is set to “low”. The trigger time for the watchdog pulses can be set by the external
capacitor CD.
The IC can be switched off by the inhibit input, reducing the current consumption to typically 0 µA.
Data Sheet 3 Rev. 1.0, 2008-04-21
TLE4263-2ES
Overview
Dimensioning Information on External Components
The input capacitor CI is recommended for compensation of line influences. The output capacitor CQ is necessary
for the stability of the control loop. Stability is guaranteed at values ≥22 µF and an ESR of ≤3Ω within the
operating temperature range. For small tolerances of the reset delay the capacitance’s spread of the delay
capacitor CD and its temperature coefficient should be taken into consideration.
Circuit Description
The control amplifier compares a reference voltage to a voltage that is proportional to the output voltage and drives
the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any
oversaturation of the power element. The component also has a number of internal circuits for protection against:
• Overload
• Overtemperature
• Reverse polarity
In case the externally scaled down output voltage at the reset adjust input falls below 1.35 V, the external reset
delay capacitor CD is discharged by the reset generator. When the voltage of the capacitor reaches the lower
threshold VDRL, a reset signal occurs at the reset output and is held until the upper threshold VDU is exceeded. If
the reset threshold input is connected to GND, reset is triggered at an output voltage of typically 4.65 V.
TLE4263-2ES
Block Diagram
Data Sheet 4 Rev. 1.0, 2008-04-21
2 Block Diagram
Figure 1 Block Diagram
Input
AEB03068
INH
GND
Output
D
RO
RADJ
Reset
Delay
Reset
Output
Reset
Threshold
Watchdog
W
Temperature
Sensor
Generator
Reset
Reference
Bandgap
Buffer
Control
Amplifier
Saturation
Control and
Protection
Circuit
Inhibit
ΙQ
GND
Data Sheet 5 Rev. 1.0, 2008-04-21
TLE4263-2ES
Pin Configuration
3 Pin Configuration
3.1 Pin Assignment
Figure 2 Pin Configuration
3.2 Pin Definitions and Functions
Pin Symbol Function
1I Input
for compensating line influences, a capacitor to GND close to the IC terminals is
recommended
2INH Inhibit
enables/disables the device;
connect to I if the this function is not needed
3RO Reset Output
open-collector output connected to the output via an internal 30kΩ pull-up resistor;
leave open if the this function is not needed
4GND Ground
5D Reset Delay Timing
connect a ceramic capacitor to GND for adjusting the reset delay time / watchdog
trigger time;
leave open if this function is not needed
6RADJ Reset Threshold Adjust
connect an external voltage divider to adjust the reset switching threshold;
connect to GND for using internal threshold
7W Watchdog
rising edge triggered input for monitoring a microcontroller;
connect to GND if this function is not needed
8Q Output
block to ground with a capacitor close to the IC terminals with a capacitance value
C≥22 µF, and an ESR ≤3Ω
PAD – Exposed Pad
attach the exposed pad on package bottom to the heatsink area on circuit board;
connect to GND
4
:
5$'-
'
,
,1+
52
*1'
TLE4263-2ES
General Product Characteristics
Data Sheet 6 Rev. 1.0, 2008-04-21
4 General Product Characteristics
4.1 Absolute Maximum Ratings
Note: 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.
Note: 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.
Absolute Maximum Ratings 1)
Tj = -40 °C to +150 °C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
1) not subject to production test, specified by design
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Max.
Input I, Input INH
4.1.1 Input Voltage VI, VINH -42 45 V –
Reset Output RO, Reset Delay D
4.1.2 Voltage VR, VD-0.3 42 V –
Reset Threshold RADJ
4.1.3 Voltage VRADJ -0.3 6 V –
Output Q
4.1.4 Voltage VQ-0.3 7 V –
Watchdog W
4.1.5 Voltage VW-0.3 6 V –
Temperature
4.1.6 Junction Temperature Tj–150°C–
4.1.7 Storage Temperature Tstg -50 150 °C–
ESD Susceptibility
4.1.8 Human Body Model (HBM)2)
2) ESD HBM Test according JEDEC JESD22-A114
Voltage - 2 kV –
4.1.9 Charged Device Model (CDM)3)
3) ESD CDM Test according AEC/ESDA ESD-STM5.3.1-1999
Voltage - 1 kV –
Data Sheet 7 Rev. 1.0, 2008-04-21
TLE4263-2ES
General Product Characteristics
4.2 Functional Range
Note: Within the functional range the IC operates as described in the circuit description. The electrical
characteristics are specified within the conditions given in the related electrical characteristics table.
4.3 Thermal Resistance
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Max.
4.2.1 Input Voltage VI5.5 45 V –
4.2.2 Junction Temperature Tj-40 150 °C–
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
4.3.1 Junction to Case1)
1) Not subject to production test, specified by design.
RthJC – 10 – K/W measured to
exposed pad
4.3.2 Junction to Ambient1) RthJA –45–K/W
2)
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.
4.3.3 RthJA – 153 – K/W footprint only3)
4.3.4 RthJA – 64 – K/W 300 mm² heatsink
area3)
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).
4.3.5 RthJA – 55 – K/W 600 mm² heatsink
area3)
TLE4263-2ES
Electrical Characteristics
Data Sheet 8 Rev. 1.0, 2008-04-21
5 Electrical Characteristics
5.1 Voltage Regulator
Electrical Characteristics Voltage Regulator
VI = 13.5 V, -40 °C ≤ Tj ≤150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
5.1.1 Output Voltage VQ4.90 5.00 5.10 V 5 mA ≤ IQ ≤ 150 mA;
6 V ≤ VI ≤ 28 V
5.1.2 Output Voltage VQ4.90 5.00 5.10 V 6 V ≤ VI ≤ 32 V;
IQ = 100 mA;
Tj = 100 °C
5.1.3 Output Current Limitation IQ,max 180 250 400 mA VQ=4.8V
5.1.4 Dropout voltage Vdr –0.350.60VIQ = 150 mA1)
1) Drop voltage = Vi - VQ (measured when the output voltage has dropped 100 mV from the nominal value obtained at 6 V
input).
5.1.5 Load regulation ∆VQ,lo ––25mVIQ = 5 mA to 150 mA
5.1.6 Line regulation ∆VQ.li –325mVVI = 6 V to 28 V;
IQ = 150 mA
5.1.7 Power Supply Ripple
Rejection2)
2) Not subject to production test, specified by design.
PSRR –54–dBfr = 100 Hz;
Vr = 0.5 Vpp
Data Sheet 9 Rev. 1.0, 2008-04-21
TLE4263-2ES
Electrical Characteristics
5.2 Typical Performance Characteristics Voltage Regulator
Output Voltage VQ versus
Junction Temperature TJ
Output Current IQ versus
Input Voltage VI
Power Supply Ripple Rejection PSRR versus
ripple frequency fr
Output Capacitor Series Resistor ESR(CQ) versus
Output Current IQ
AED01090
-40 04080120 ˚C 160
4.6
j
T
Q
V
V
I
= 13.5 V
4.7
4.8
4.9
5.0
5.1
V
5.2
T
100
0
50
100
20
250
300
Q
Ι
mA
200
150
V
40
30 V
Ι
50
= 25 C
j
AED01091
I>+]@
N
3655
>G%@
B3655B)69*
N N
9ULSSOH 9
9, 9
&4 )WDQWDOXP
7M &
,4 P$
,4 P$
,4 P$
2 _ESR - IQ .VSD
1
0.1
0.01
ESR
CQ
[Ω]
0
I
Q
[mA]
100
100
10
Stable
Region
50 150
C
Q
= 22 µF
T
j
= -40...150 °C
TLE4263-2ES
Electrical Characteristics
Data Sheet 10 Rev. 1.0, 2008-04-21
Dropout Voltage Vdr versus
Output Current IQ
Output Voltage VQ versus
Input Voltage VI
AED03060_4263
0
0
Q
I
50 100 150 200 300
mA
100
200
300
400
500
600
700
800
mV
V
dr
j
T
= 125 ˚C
25 ˚C
R
6
4
2
04
02
8
12
10
Q
VV
10
V
68
VΙ
AED01097
= 25
L
Ω
Data Sheet 11 Rev. 1.0, 2008-04-21
TLE4263-2ES
Electrical Characteristics
5.3 Current Consumption
5.4 Typical Performance Characteristics Current Consumption
Electrical Characteristics Voltage Regulator
VI = 13.5 V, -40 °C ≤ Tj ≤150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
5.3.1 Current Consumption;
Iq = II - IQ
Iq–010µAVINH = 0 V; Tj ≤ 115 °C
5.3.2 – 900 1300 µAIQ = 0 mA
5.3.3 – 10 18 mA IQ = 150 mA
5.3.4 – 15 24 mA IQ = 150 mA;
VI = 4.5 V
Current Consumption Iq versus
Input Voltage VI
Current Consumption Iq versus
Output Current IQ
15
10
5
20010
0
20
mA
30
25
q
Ι
= 25
R
L
50
V
30 40
V
Ι
AED01096
Ω
AED03061
0
0
Q
I
q
I
50 100 150 200 300
I
V
= 13.5 V
mA
4
8
12
16
20
24
28
32
mA
TLE4263-2ES
Electrical Characteristics
Data Sheet 12 Rev. 1.0, 2008-04-21
5.5 Inhibit Function
5.6 Typical Performance Characteristics Inhibit
Electrical Characteristics Voltage Regulator
VI = 13.5 V, -40 °C ≤ Tj ≤150 °C, all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
5.5.1 Switching Voltage VINH,ON 3.6 – – V IC turned on
5.5.2 Turn-OFF Voltage VINH,OFF – – 0.8 V IC turned off
5.5.3 Inhibit Input Current IINH 51027µAVINH = 5 V
Inhibit Input Current IINH versus
Junction Temperature Tj
AED03063
V
INH = 5 V
µA
INH
I
80-40
4
2
0
6
8
400
10
12
14
16
160˚C120
T
j
Data Sheet 13 Rev. 1.0, 2008-04-21
TLE4263-2ES
Electrical Characteristics
5.7 Reset Function
Note: The reset output is low within the range VQ = 1 V to VQ,rt
Electrical Characteristics Reset Function
VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
Output Undervoltage Reset
5.7.1 Default Output Undervoltage Reset
Switching Thresholds
VQ,rt 4.5 4.65 4.8 V VQ decreasing
Output Undervoltage Reset Threshold Adjustment
5.7.2 Reset Adjust
Switching Threshold
VRADJ,th 1.26 1.36 1.44 V 3.5 V ≤ VQ < 5 V
5.7.3 Reset Adjustment Range1)
1) VRT is scaled linearly, in case the Reset Switching Threshold is modified
VRT,range 3.50 – 4.65 V –
Reset Output RO
5.7.4 Reset Output Low Voltage VRO,low –0.10.4VIRO = 1 mA
Reset Delay Timing
5.7.5 Power On Reset Delay Time trd 1.3 2.8 4.1 ms CD = 100 nF
5.7.6 Saturation Voltage VD,sat –50110mVVQ < VR,th
5.7.7 Upper Delay
Switching Threshold
VDU 1.40 1.70 2.20 V –
5.7.8 Lower Delay
Switching Threshold
VDRL 0.20 0.35 0.59 V –
5.7.9 Delay Capacitor
Charge Current
ID,ch 40 60 88 µA–
5.7.10 Reset Reaction Time trr 0.5 1.2 4 µsCD = 100 nF
TLE4263-2ES
Electrical Characteristics
Data Sheet 14 Rev. 1.0, 2008-04-21
5.8 Typical Performance Characteristics Reset
Undervoltage Reset Adjust Threshold VRT
versus Junction Temperature Tj
Undervoltage Reset Adjust
Threshold VRADJ,th versus Output Voltage VQ
Timing Threshold Voltage VDU and VDRL
versus Temperature
AED01088
-40 04080120 ˚C 160
0
j
T
RADJ
V
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V
0.8
0.4
0.6
0.2
1
02
0
1.6
1.2
1.4
1.0
RADJ
V
V
V
4
35
V
Q
AED01098_4263
Ι
V
= 13.5 V
AED03062
-40
0
I
V
= 13.5 V
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
V
04080120 160˚C
V
T
j
V
DRL
DU
V
Data Sheet 15 Rev. 1.0, 2008-04-21
TLE4263-2ES
Electrical Characteristics
5.9 Watchdog Function
5.10 Typical Performance Characteristics Watchdog
Electrical Characteristics Watchdog Function
VI = 13.5 V, -40 °C ≤ Tj ≤ 150 °C, VINH > 3.6 V; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified)
Pos. Parameter Symbol Limit Values Unit Conditions
Min. Typ. Max.
5.9.1 Discharge Current ID,wd 4.40 6.25 9.40 µAVD = 1.0 V
5.9.2 Upper Timing Threshold VDU 1.40 1.70 2.20 V –
5.9.3 Lower Timing Threshold VDWL 0.20 0.35 0.55 V –
5.9.4 Watchdog Trigger Time TWI,tr 16 22.5 27 ms CD = 100 nF
VQ > VQ,RT
5.9.5 Watchdog Output Low Time TWD,L 12.13.5msCD = 100 nF
VQ > VQ,RT
5.9.6 Watchdog Period
TWI,p = TWD,L + TWI,tr
TWI,p 17 24.6 30.5 ms CD = 100 nF
VQ > VQ,RT
Charge Current and Discharge Current
versus Temperature
Watchdog Trigger Time
versus Temperature
40
20
30
10
0-40 40
0
80
60
70
50
Ι
A
C
12080 160
T
j
AED03064
µ
= 13.5 V
= 1.5 V
Ι
V
V
D
Ι
D, ch
D, dis
Ι
20
10
15
5
0-40 40
0
40
30
35
25
WI,tr
T
C
12080 160
T
j
AED03065_4263
ms
V
Ι= 13.5 V
= 100 nF
C
D
TLE4263-2ES
Application Information
Data Sheet 16 Rev. 1.0, 2008-04-21
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.
Figure 3 Application Diagram
Note: This is a very simplified example of an application circuit. The function must be verified in the real application.
AES03070_4263
22 F
Ι
Q
Ι
RD
V
RADJ
Ω5.6 k
D
ROINH
E
Ι
1000 F 470 nF
Ι
Ι
V
ED
C
V
C
GND
Ι
D, ch
Ι
V
RO
Q
V
V
Ι
TLE4263-2 ES
µ µ
GND
W
V
W RADJ
100 nF
ΙQ
V
r
+
PSRR = 20 log
V
r
Q, r
V
∆
Data Sheet 17 Rev. 1.0, 2008-04-21
TLE4263-2ES
Application Information
6.1 Reset
Figure 4 Reset Timing Diagram
Power-On Reset Delay Time
If the application needs a power-on reset delay time trd different from the value given in Item 5.7.5, the delay
capacitor’s value can be derived from these specified values and the desired power-on delay time:
V
I
t
V
Q
t
V
Q, r t
V
RO
TimingDiagram_Reset.vs
d
t
V
RO,l
1 V
1V
t
rd
Thermal
Shutdown
Inpu t
Voltage Dip
t
rr
t
rd
t
rd
t
<
t
rr
t
rd
Under-
voltage
Spike at
output
Ove r-
load
V
DRL
V
DU
t
V
D
CD
trd new,
trd
---------------- 100nF×=
TLE4263-2ES
Application Information
Data Sheet 18 Rev. 1.0, 2008-04-21
with
•CD: capacitance of the delay capacitor to be chosen
•trd,new: desired power-on reset delay time
•trd: power-on reset delay time specified in this datasheet
For a precise calculation also take the delay capacitor’s tolerance into consideration.
Reset Adjust Function
The undervoltage reset switching threshold can be adjusted according to the application’s needs by connecting
an external voltage divider (RADJ1,RADJ2) at pin RADJ. For selecting the default threshold connect pin RADJ to
GND.
When dimensioning the voltage divider, take into consideration that there will be an additional current constantly
flowing through the resistors.
With a voltage divider connected, the reset switching threshold VRT,new is calculated as follows:
(1)
with
•VRT,new: the desired new reset switching threshold
•RADJ1, RADJ2: resistors of the external voltage divider
VRADJ,th: reset adjust switching threshold given in “Reset Function” on Page 13
VRT new,
RADJ 1,R+ADJ 2,
RADJ 2,
------------------------------------------ VRADJ th,
×=
Data Sheet 19 Rev. 1.0, 2008-04-21
TLE4263-2ES
Application Information
6.2 Watchdog
Figure 5 Timing of the Watchdog Function Reset
Watchdog Timing
The period of the watchdog pulses has to be smaller than the minimum watchdog trigger time which is set by the
external reset delay capacitor CD. Use the following formula for dimensioning CD:
(2)
with
•CD: capacitance of the delay capacitor to be chosen
•T
WI,tr,new: desired watchdog trigger time
•T
WI,tr: watchdog trigger time specified in this data sheet
V
W
t
V
RO
TimingDiagram_Watchdog.vsd
t
V
RO,l
t
WD, L
t
WI , t r
V
DWL
V
DU
t
V
D
t
WD, L
T
WI , p
No positive
V
W
edge
CD
TWI,tr,new
TWI,tr
------------------------100 nF×=
TLE4263-2ES
Package Outlines
Data Sheet 20 Rev. 1.0, 2008-04-21
7 Package Outlines
Figure 6 PG-DSO-8 exposed pad
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).
PG-DSO-8-27-PO V01
14
85
8
14
5
8x
0.41
±0.09 2)
M
0.2 DC A-B
1.27 C
Stand Off
+0
-0.1
0.1
(1.45)
1.7 MAX.
0.08
Seating Plane
C
A
B
4.9
±0.11)
A-BC0.1 2x
3
)
JEDEC reference MS-012 variation BA
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Dambar protrusion shall be maximum 0.1 mm total in excess of lead width
Bottom View
±0.2
3
±0.2
2.65
0.2
±0.2
D6
M
D 8x
0.64
±0.25
3.9
±0.11)
0.1
0.35 x 45˚
CD2x
+0.06
0.19
8
˚
MAX.
Index Marking
You can find all of our packages, sorts of packing and others in our
Infineon Internet Page “Products”: http://www.infineon.com/products.Dimensions in mm
Edition 2008-04-21
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2007 Infineon Technologies AG
All Rights Reserved.
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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.
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For further information on technology, delivery terms and conditions and prices, please contact the nearest
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