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5-V Low Drop Voltage Regulator
TLE 7270
Features * * * * * * * Output voltage 5 V 2% Ultra low current consumption: typ. 20A 300 mA current capability Reset Feature Very low-drop voltage Short-circuit-proof Suitable for use in automotive electronics
P-TO252-5-1
Functional Description The TLE 7270 is a monolithic integrated low-drop voltage regulator which can supply loads up to 300 mA. An input voltage up to 42 V is regulated to VQ,nom = 5.0 V with a precision of 2%. Due to its integrated reset circuitry featuring a 2-step adjustable power on timing and output voltage monitoring the IC is well suited for P-TO263-5-1 -controller supplies. The sophisticated design allows to achieve stable operation even with ceramic output capacitors down to 470 nF. The device is designed for the harsh environment of automotive applications. Therefore it is protected against overload, short circuit and overtemperature conditions. Of course the TLE 7270 can be used also in all other applications, where a stabilized 5 V voltage is required. Due to its ultra low current consumption the TLE 7270 is dedicated for use in applications permanently connected to VBAT. An integrated output sink current circuitry keeps the voltage at the Output pin Q below 5.5 V even when reverse currents are applied. Thus connected devices are protected from overvoltage damage. For applications requiring extremely low noise levels the Infineon voltage regulator family TLE 42XY and TLE 44XY is more suited than the TLE 7270. A mV-range output noise on the TLE 7270 caused by the charge pump operation is unavoidable due to the ultra low quiescent current concept. Type TLE 7270 D TLE 7270 G
Data Sheet
Ordering Code Q67006-A9670 on request
1
Package P-TO252-5-1 P-TO263-5-1
Rev. 1.03, 2004-10-14
TLE 7270
Reset The Reset pin informs e.g. the microcontroller in case the output voltage has fallen below the lower threshold VRT of typ. 4.65 V. The hysteresis is typically 100mV. Connecting the regulator to a battery voltage at first the reset signal remains LOW. When the output voltage has reached the reset threshold VRT the reset output RO remains still LOW for the reset delay time trd adjustable in 2 steps via the DT Pin. Afterwards the reset output turns HIGH.
TLE 7270
I
1
5
Q
Overtemperature Shutdown Bandgap Reference
1
Reset Generator with Selectable Timing
2 4
RO DT
Charge Pump
3 GND
AEB03520.VSD
Figure 1
Block Diagram
Data Sheet
2
Rev. 1.03, 2004-10-14
TLE 7270
GND
I RO
DT Q
AEP02825_7270
Figure 2 Table 1 1 2 I RO
Pin Configuration P-TO252-5-1 (D-PAK), P-TO263-5-1 (top view) Pin Definitions and Functions Input; block to ground directly at the IC with a ceramic capacitor. Reset Output. Open Collector Output with integrated pull-up resistor of typically 30k. Optional external pull-up resistor of 10 k to pin Q. Ground; Pin 3 internally connected to heatsink. Delay Time; connect to Q or GND to choose reset delay time. Output; block to ground with a ceramic capacitor, C 470 nF.
Pin No. Symbol Function
3 4 5
GND DT Q
Data Sheet
3
Rev. 1.03, 2004-10-14
TLE 7270
Table 2 Parameter Input I Voltage Current Output Q Voltage Voltage Current
Absolute Maximum Ratings Symbol Limit Values Min. Max. 45 - 5.5 6.2 - 5.5 6.2 1 5.5 6.2 1 150 150 V mA V V mA V V mA V V mA C C - - - Unit Test Condition
VI II VQ VQ IQ VRO VRO IRO VDT VDT IDT Tj Tstg
-0.3 -1 -0.3 -0.3 -1 -0.3 -0.3 -1 -0.3 -0.3 -1 -40 -50
t < 10 s1)
- -
Reset Output RO Voltage Voltage Current Delay Time DT Voltage Voltage Current Temperature Junction temperature Storage temperature - - -
t < 10 s1)
-
t < 10 s1)
-
1) Exposure to these absolute maximum ratings for extended periods (t > 10 s) may affect device reliability.
Note: Stresses above those listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 3 Parameter Input voltage Junction temperature Operating Range Symbol Limit Values Min. Max. 42 150 V C - - 5.5 -40 Unit Remarks
VI Tj
Note: In the operating range, the functions given in the circuit description are fulfilled.
Data Sheet
4
Rev. 1.03, 2004-10-14
TLE 7270
Table 4 Parameter Junction case
Thermal Resistance Symbol Limit Values Min. Max. 101) 801) 551) K/W - K/W TO2522) K/W TO2633) x 80 x 1.5 mm3, heat sink x 80 x 1.5 mm3, heat sink - - - Unit Remarks
Junction ambient Junction ambient
Rthj-c Rthj-a Rthj-a
1) Target values need to be verified 2) Worst case, regarding peak temperature; zero airflow; mounted on a PCB FR4, 80 area 300 mm2 3) Worst case, regarding peak temperature; zero airflow; mounted on a PCB FR4, 80 area 300 mm2
Table 5
Electrical Characteristics
VI = 13.5 V; - 40 C < Tj < 150 C (unless otherwise specified)
Parameter Output Q Output voltage Output voltage Symbol Limit Values Min. Typ. Max. 5.0 5.0 - 20 - 200 15 5 5.1 5.1 - 800 - - - - 40 - 20 30 40 500 40 20 Unit Measuring Condition
VQ VQ
4.9 4.9 320
V V
mA mA A A mV mV mV
0.1 mA1)
Output current limitation IQ Output current limitation IQ Current consumption; Iq = II - IQ Current consumption; Iq = II - IQ Drop voltage Load regulation Line regulation
Iq Iq Vdr VQ, lo VQ, li
VQ =0V IQ = 0.1 mA; Tj = 25 C IQ = 0.1 mA; Tj 80 C IQ = 200 mA Vdr = VI - VQ1) IQ = 5 mA to 250 mA Vl = 10 V to 32 V; IQ = 5 mA
Data Sheet
5
Rev. 1.03, 2004-10-14
TLE 7270
Parameter Power supply ripple rejection Temperature output voltage drift Output Capacitor Reset Output RO Reset switching threshold
Symbol
Limit Values Min. Typ. Max. 60 0.5 - 4.65 0.2 30 - - - 4.80 0.4 45 - - 470 4.50 - 15 10 10 80 - 16 128 -
Unit dB
Measuring Condition
PSRR dVQ ---------dT CQ VRT
fr = 100 Hz; Vr = 0.5 Vpp
mV/K - nF V V k k ms ms s see Fig. 3 DT connected to GND DT connected to Q - ESR < 3
VQ decreasing
Vi = 6V
Reset output low voltage VROL Internal reset pull up resistor External reset pull up resistor Reset delay time Reset delay time Reset reaction time
RRO = 10 k; VQ > 1 V
RR,int RR,ext trd trd trr
2)
22 176 12
1) Measured when the output voltage VQ has dropped 100 mV from the nominal value obtained at VI = 13.5 V. 2) An external reset pull up resistor is not required.
Data Sheet
6
Rev. 1.03, 2004-10-14
TLE 7270
Application Information
V at B
100 nF
T E 7270 L 1I Q5 470 nF R2 O R eset G enerator w ith T S electable D 4 T ing im 22 k
VC C
4.7 F R eset
O vertem perature S hutdow n B andgap R eference
1
C harge Pp um
GD N 3
AA E 03519.V D S
Figure 3 Input, Output
Application Diagram
An input capacitor is necessary for damping line influences. A resistor of approx. 1 in series with CI, can damp the LC of the input inductivity and the input capacitor. The TLE 7270 requires a ceramic output capacitor of at least 470 nF to assure stability of the regulation loop. In order to damp influences resulting from load current surges it is recommended to add an additional electrolytic capacitor of 4.7 F to 47 F at the output as shown in Figure 3.
Data Sheet
7
Rev. 1.03, 2004-10-14
TLE 7270
Typical Performance Characteristics Output Voltage VQ versus Temperature Tj
VQ
5.2 V 5.1
AED03033
VI = 13.5 V
5.0
4.9
4.8
4.7
4.6 -40
0
40
80
120 C 160
Tj
Drop Voltage VDR versus Output Current IQ
V DR
500 mV 400
A E D 0 3 5 2 1 .V S D
300
200
100
0
0
50
100
150
200
m A 300
IQ
Data Sheet
8
Rev. 1.03, 2004-10-14
TLE 7270
Output Voltage VQ versus Input Voltage VI
12 VQ V 10
AED01929
8
6
R L = 25
4
2
0
0
2
4
6
8 V 10 V
Data Sheet
9
Rev. 1.03, 2004-10-14
TLE 7270
Package Outlines
6.5 +0.15 -0.10
2.3 +0.05 -0.10 B A 1 0.1 0...0.15 0.9 +0.08 -0.04
10.1
5.4 0.1
9.9 0.5 6.22 -0.2
0.8 0.15
(4.17)
0.15 max per side
0.51 min
5x0.6 0.1 1.14
0.5 +0.08 -0.04 0.1
4.56
0.25
M
AB
GPT09161
All metal surfaces tin plated, except area of cut.
Figure 4
P-TO252-5-1 (Plastic Transistor Single Outline)
You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. Data Sheet 10
Dimensions in mm Rev. 1.03, 2004-10-14
TLE 7270
10 0.2 9.8 0.15 A 8.5 1) 1.27 0.1 B 0.1 2.4
4.4
9.25 0.2
10.3
0.05
(15)
8 1)
0...0.15 5x0.8 0.1 4x1.7
8 max.
0.5 0.1
0.25
1)
M
AB
4.70.5
2.7 0.3
0.1
Typical All metal surfaces tin plated, except area of cut.
GPT09113
Figure 5
P-TO263-5-1 (Plastic Transistor Single Outline)
You can find all of our packages, sorts of packing and others in our Infineon Internet Page "Products": http://www.infineon.com/products. Data Sheet 11
Dimensions in mm Rev. 1.03, 2004-10-14
TLE 7270
Data Sheet
12
Rev. 1.03, 2004-10-14
Edition 2004-10-14 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.
TLE 7270 5-V Low Drop Voltage Regulator Revision History: 2004-10-14 Previous Version: Page 1.02 Subjects (major changes since last revision) minor text modifications
Rev. 1.03
Template: ap_tmplt_a5.fm / 1 / 2004-01-01

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