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Low Drop Voltage Regulator
TLE 4266-2
Features * * * * * * * * * * Fixed output voltage 5.0 V or 3.3 V Output voltage tolerance 2%, 3% 150 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
P-SOT223-4
Functional Description The TLE 4266-2 is a monolithic integrated low-drop fixed voltage regulator which can supply loads up to 150 mA. It can be switched on and off by the INH pin. It is functional compatible to the TLE 4266, but with a reduced quiescent current of << 1 A in OFF mode and 40 A in ON mode. The TLE 4266-2 is especially designed for all applications that require very low quiescent current in ON and OFF mode. The device is available in the small surface mounted P-SOT223-4-7 package. It is pin compatible to the TLE 4266 G. It is designed to supply microprocessor systems under the severe condition of automotive applications and therefore it is equipped with additional protection against over load, short circuit and overtemperature. Of course the TLE 4266-2 can be used in other applications, where a stabilized voltage and the inhibit feature is required. And input voltage VI up to 45 V is regulated to VQ = 5 V (TLE 4266-2 G) or VQ = 3.3 V (TLE 4266-2 GSV33) with an accuracy of 3%. For the 5 V device an accuracy of 2% is kept for a load current range up to 50 mA. The device operates in the temperature range of Tj = -40 to 150 C. A High level at the INH pin switches the regulator on.
Type TLE 4266-2 G TLE 4266-2 GSV33
Data Sheet
Ordering Code Q67006-A9485 Q67006-A9636
1
Package P-SOT223-4-7 P-SOT223-4-7
Rev. 1.2, 2004-01-01
TLE 4266-2
P-SOT223-4-7
GND
4
1
2
3
INH
Q
AEP02872
Figure 1 Table 1 Pin 1 2 3 4 I
Pin Configuration (top view) Pin Definitions and Functions TLE 4266-2 G, TLE 4266-2 GSV33 Symbol Function Input voltage; block to ground directly at the IC with a ceramic capacitor. Inhibit input; high level turns IC on, integrated pull-down resistor. Output voltage; block to ground with a capacitor CQ 10 F, ESR 4 Ground
INH Q GND
Data Sheet
2
Rev. 1.2, 2004-01-01
TLE 4266-2
Temperature Sensor
Saturation Control and Protection Circuit
Q
Control Amplifier Adjustment Bandgap Reference
Buffer
INH
GND GND
AEB02874
Figure 2
Block Diagram
Data Sheet
3
Rev. 1.2, 2004-01-01
TLE 4266-2
Table 2
Absolute Maximum Ratings
Tj = -40 to 150 C
Parameter Input I Voltage Current Inhibit INH Voltage Output Q Voltage Current GND Current Temperature Junction temperature Storage temperature Thermal Resistance Junction ambient Junction case Operating Range Input voltage Junction temperature Symbol Limit Values Min. Max. 45 - 45 32 - - 150 150 81 18 45 45 150 V - V V - mA - internally limited - - internally limited - - - P-SOT223-4-71) P-SOT223-4-7 TLE 4266-2 G TLE 4266-2 GSV33 - Unit Notes
VI II VINH VQ IQ IGND Tj TS Rthj-a Rthj-pin4 VI Tj
-42 - -42 -0.3 - 50 - -50 - - 5.5 4.4 -40
C C
K/W K/W V V
C
1) Worst case, regarding peak temperature; zero airflow; mounted an a PCB 80 x 80 x 1.5 mm3, heat sink area 300 mm2.
Data Sheet
4
Rev. 1.2, 2004-01-01
TLE 4266-2
Table 3
Characteristics
VI = 13.5 V; VINH = 5 V; -40 C Tj 125 C unless otherwise specified
Parameter Output voltage Symbol Limit Values Min. Typ. Max. 5.15 V TLE 4266-2 G; 5 mA IQ 100 mA; 6 V VI 21 V TLE 4266-2 G; 5 mA IQ 50 mA; 9 V VI 16 V TLE 4266-2 GSV33; 5 mA IQ 100 mA; 6 V VI 21 V - 4.85 5.0 Unit Test Condition
VQ
4.9
5.0
5.1
V
Output voltage
VQ
3.20
3.30
3,40
V
Output-current limitation IQ Current consumption Iq = II - IQ Current consumption Iq = II - IQ Current consumption Iq = II - IQ Drop voltage Drop voltage Load regulation
150 - - -
200 0 40 40 1.7 0.25 1.00 50
500 1 60 70 4 0.5 1.10 90
mA
Iq Iq
A A A
mA V V mV
VINH = 0 V; Tj 100 C IQ = 100 A; Tj 85 C IQ = 100 A IQ = 50 mA
TLE 4266-2 G; IQ = 100 mA1) TLE 4266-2 GSV33; IQ = 100 mA2) TLE 4266-2 G; IQ = 1 to 100 mA; VI = 6 V TLE 4266-2 GSV33; IQ = 1 to 100 mA; VI = 6 V TLE 4266-2 G; VI = 6 V to 28 V; IQ = 1 mA TLE 4266-2 GSV33; VI = 6 V to 28 V; IQ = 1 mA
Rev. 1.2, 2004-01-01
Iq VDr VDr
VQ
- - - -
Load regulation
VQ
-
35
60
mV
Line regulation
VQ
-
5
30
mV
Line regulation
VQ
-
4
20
mV
Data Sheet
5
TLE 4266-2
Table 3
Characteristics (cont'd)
VI = 13.5 V; VINH = 5 V; -40 C Tj 125 C unless otherwise specified
Parameter Power Supply Ripple Rejection Output Capacitor Inhibit Inhibit on voltage Inhibit off voltage Inhibit current Pull-down resistor Symbol Limit Values Min. Typ. Max. - - - 0.8 8 - dB - 10 3.5 - - - 68 - - - 4 1.0 Unit Test Condition
PSRR CQ VINH, on VINH, off IINH RINH
fr = 100 Hz; Vr = 0.5 Vpp
ESR 4 at 10 kHz - -
F
V V
A
M
VINH = 5 V see IINH
1) Drop voltage = VI - VQ (measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V). 2) Drop voltage = VI - VQ (measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V).
Data Sheet
6
Rev. 1.2, 2004-01-01
TLE 4266-2
Input 5.5 V to 45 V
Q
Output
i 470 F Vi VINH
100 nF
Q 10 F
TLE 4266-2
INH
INH GND
VQ
AES02875
Figure 3
Measuring Circuit
Circuit Description and Application Information In the TLE 4266-2 the output voltage is divided and compared to an internal reference of 2.5 V typical. The regulation loop controls the output to achieve an output voltage of 5 V with an accuracy of 2% at an input voltage up to 45 V. The minimum required input voltage is VQ + Vdr with a drop voltage Vdr of max. 0.5 V (see "Typical Performance Characteristics" on Page 8) in case of the TLE 4266-2 G. The TLE 4266-2 GSV33 requires a minimum input voltage of 4.4 V. The TLE 4266-2 can supply up to 150 mA. However for protection reasons at high input voltage above 25 V, the maximum output current is reduced (SOA protection). Figure 3 shows a typical measuring circuit. For stability of the control loop the TLE 4266-2 output requires an output capacitor CQ of at least 10 F with a maximum permissible ESR of 4 . Tantalum as well as multi layer ceramic capacitors are suitable. At the input of the regulator an input capacitor is necessary for compensating line influences (100 nF ceramic capacitor recommended). A resistor of approx. 1 in series with CI, can damp any oscillation occuring due the input inductivity and the input capacitor. In the measuring circuit shown in Figure 3 an additional electrolytic input capacitor of 470 F is added in order to buffer supply line influences. This capacitor is recommended, if the device is sourced via long supply lines of several meters. The TLE 4266-2 includes the Inhibit function. For a voltage above 3.5 V at the INH pin the regulator is switched on.
Data Sheet
7
Rev. 1.2, 2004-01-01
TLE 4266-2
Typical Performance Characteristics Output Voltage VQ versus Junction Temperature Tj
VQ
5.15 V 5.10
AED03344.VSD
Drop Voltage Vdr versus Output Current IQ (TLE 4266-2 G)
Vdr
400 mV 350 300
AED03385.VSD
IQ = 5 mA
TLE 4266-2 G
Tj = 125C Tj = 25C
5.05
250 200
5.00
150 100
Tj = -40C
4.95
50
4.90 -40
0
40
80
C
160
0
0
20 40 60 80 100 120 mA 160
Tj
IQ
Output Voltage VQ versus Input Voltage VI
10
AED03386.VSD
Inhibit Current IINH versus Inhibit Voltage VINH
IINH
8 A 7 6
AED03384.VSD
VQ
V 8
RL = 50 VINH = 5 V
6 TLE 4266-2 G
5 4
4
TLE 4266-2 GSV33
3 2
2 1 0 0
0
2
4
6
8
V 10
0
1
2
3
4
5
6
V
8
VI
VINH
Data Sheet
8
Rev. 1.2, 2004-01-01
TLE 4266-2
Current Consumption Iq versus Output Current IQ
Iq
400 A 350 300 250 200 150 100 50 0
AED03341.VSD
Current Consumption Iq versus Output Current IQ
Iq
8 mA 7 6 5 4 3 2 1 0
AED03342.VSD
0
2
4
6
8
10 12 mA 16
0
20 40 60 80 100 120 mA 160
IQ
IQ
Data Sheet
9
Rev. 1.2, 2004-01-01
TLE 4266-2
Package Outlines
A
6.5 0.2 3 0.1 4 0.1 MAX.
1.6 0.1
1 0.7 0.1 4.6 0.25
M
2 2.3
3
0.5 MIN.
0.28 0.04
A
0.25
M
B
3.5 0.2
7 0.3
+0.2 acc. to DIN 6784
15 MAX.
B
GPS05560
Figure 4
P-SOT223-4-7 (Plastic Small Outline Transistor)
You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. SMD = Surface Mounted Device Data Sheet 10 Dimensions in mm Rev. 1.2, 2004-01-01
Edition 2004-01-01 Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 Munchen, Germany
(c) Infineon Technologies AG 2004.
All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Information For further information on technology, delivery terms and conditions and prices please contact your 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 your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems 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 devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

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