5-V Low Drop Voltage Regulator TLE 7270 Features • • • • • • • Output voltage 5 V ±2% Ultra low current consumption: typ. 20µA 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 µ-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 Ordering Code Package TLE 7270 D Q67006-A9670 P-TO252-5-1 TLE 7270 G on request P-TO263-5-1 Data Sheet 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 Overtemperature Shutdown Bandgap Reference 1 Reset Generator with Selectable Timing 2 4 Q RO DT Charge Pump 3 GND Figure 1 Data Sheet AEB03520.VSD Block Diagram 2 Rev. 1.03, 2004-10-14 TLE 7270 GND I RO DT Q AEP02825_7270 Figure 2 Pin Configuration P-TO252-5-1 (D-PAK), P-TO263-5-1 (top view) Table 1 Pin Definitions and Functions Pin No. Symbol Function 1 I Input; block to ground directly at the IC with a ceramic capacitor. 2 RO Reset Output. Open Collector Output with integrated pull-up resistor of typically 30kΩ. Optional external pull-up resistor of ≥ 10 kΩ to pin Q. 3 GND Ground; Pin 3 internally connected to heatsink. 4 DT Delay Time; connect to Q or GND to choose reset delay time. 5 Q Output; block to ground with a ceramic capacitor, C ≥ 470 nF. Data Sheet 3 Rev. 1.03, 2004-10-14 TLE 7270 Table 2 Absolute Maximum Ratings Parameter Symbol Limit Values Unit Test Condition Min. Max. VI II -0.3 45 V – -1 – mA – VQ VQ IQ -0.3 5.5 V – -0.3 6.2 V t < 10 s1) -1 – mA – VRO VRO IRO -0.3 5.5 V – -0.3 6.2 V t < 10 s1) -1 1 mA – VDT VDT IDT -0.3 5.5 V – -0.3 6.2 V t < 10 s1) -1 1 mA – Tj Tstg -40 150 °C – -50 150 °C – Input I Voltage Current Output Q Voltage Voltage Current Reset Output RO Voltage Voltage Current Delay Time DT Voltage Voltage Current Temperature Junction temperature Storage temperature 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 Operating Range Parameter Input voltage Junction temperature Symbol VI Tj Limit Values Unit Remarks Min. Max. 5.5 42 V – -40 150 °C – 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 Thermal Resistance Parameter Symbol Junction case Junction ambient Junction ambient Limit Values Rthj-c Rthj-a Rthj-a Unit Remarks Min. Max. – 101) K/W – – 801) K/W TO2522) – 551) K/W TO2633) 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 × 80 × 1.5 mm3, heat sink × 80 × 1.5 mm3, heat sink Electrical Characteristics VI = 13.5 V; – 40 °C < Tj < 150 °C (unless otherwise specified) Parameter Symbol Limit Values Min. Typ. Max. Unit Measuring Condition Output Q Output voltage VQ 4.9 5.0 5.1 V 0.1 mA<IQ<300 mA; 6 V < VI < 16 V Output voltage VQ 4.9 5.0 5.1 V 0.1 mA<IQ<100 mA; 6 V < VI < 40 V 320 – – mA 1) 800 mA 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 Output current limitation IQ Output current limitation IQ Current consumption; Iq = II – IQ Iq – 20 30 µA Current consumption; Iq = II – IQ Iq – – 40 µA Drop voltage Vdr – 200 500 mV Load regulation ∆VQ, lo – 40 15 40 mV Line regulation ∆VQ, li – 20 5 20 mV Data Sheet 5 Vl = 10 V to 32 V; IQ = 5 mA Rev. 1.03, 2004-10-14 TLE 7270 Parameter Symbol Limit Values Min. Typ. Max. Unit Measuring Condition fr = 100 Hz; Vr = 0.5 Vpp Power supply ripple rejection PSRR – 60 – dB Temperature output voltage drift dVQ ----------dT CQ – 0.5 – mV/K – 470 – – nF ESR < 3 Ω VRT 4.50 4.65 4.80 V VQ decreasing – 0.2 0.4 V 30 45 kΩ ∞2) kΩ see Fig. 3 Output Capacitor Reset Output RO Reset switching threshold Vi = 6V Reset output low voltage VROL RRO = 10 kΩ; VQ > 1 V Internal reset pull up resistor RR,int 15 External reset pull up resistor RR,ext 10 Reset delay time trd trd trr 10 16 22 ms DT connected to GND 80 128 176 ms DT connected to Q – – 12 µs – Reset delay time Reset reaction time 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 VBat TLE 7270 1 I VCC Q 5 100 nF 470 nF Overtemperature Shutdown Bandgap Reference RO 2 Reset Generator with Selectable DT 4 Timing 1 22 k 4.7 µF Reset Charge Pump GND 3 Figure 3 AEA03519.VSD Application Diagram Input, Output An input capacitor is necessary for damping line influences. A resistor of approx. 1 Ω 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 µF to 47 µF 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 AED03033 5.2 V 5.1 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 A E D 0 3 5 2 1 .V S D 500 mV 400 300 200 100 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 AED01929 12 VQ V 10 8 6 R L = 25 Ω 4 2 0 0 2 4 6 8 V 10 VΙ Data Sheet 9 Rev. 1.03, 2004-10-14 TLE 7270 Package Outlines 2.3 +0.05 -0.10 A 0.9 +0.08 -0.04 1 ±0.1 0...0.15 0.51 min 0.15 max per side B 5.4 ±0.1 0.8 ±0.15 (4.17) 9.9 ±0.5 6.22 -0.2 1 ±0.1 6.5 +0.15 -0.10 0.5 +0.08 -0.04 5x0.6 ±0.1 1.14 4.56 0.1 0.25 M A B 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 4.4 9.8 ±0.15 1.27 ±0.1 B 0.1 0.05 2.7 ±0.3 8 1) 2.4 4.7 ±0.5 (15) 9.25 ±0.2 1±0.3 A 8.5 1) 0...0.15 5x0.8 ±0.1 0.5 ±0.1 4x1.7 8˚ max. 0.25 1) M A B 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 München, Germany © 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 Rev. 1.03 1.02 Subjects (major changes since last revision) minor text modifications Template: ap_tmplt_a5.fm / 1 / 2004-01-01