TLF80511 Demo Board Product Manual Application Note Rev. 1.0, 2012-07-04 Automotive Power TLF80511 Demo Board Product Manual Introduction 1 Introduction The TLF80511 Demoboard is a demonstration of the Infineon low drop out linear voltage regulator. The TLF80511 is the ideal IC to supply regulated voltage for general ECU‘s and infotainment applications. The fixed output voltage makes the TLF80511 suitable of supplying the majority of standard applications. This application note contains information for the TLF80511 Demoboard. 1.1 General Description The TLF80511 is a linear low dropout voltage regulator for load currents up to 400 mA. An input voltage up to 40 V (functional range) is regulated to VOUT,nom = 5 V with ±2 % precision. The TLF80511, with a typical quiescent current of 38µA, is the ideal solution for systems requiring very low operating current, such as those permanently connected to a battery. It features a very low dropout voltage of 100 mV, when the output current is less than 100 mA. In addition, the dropout region begins at input voltages of 3.3 V (extended operating range). This makes the TLF80511 suitable to supply automotive systems. In addition, the TLF80511’s new fast regulation concept requires only a single, 1 µF output capacitor to maintain stable regulation. For more detailed information please see also TLF80511 data sheet [1]. 1.2 • • • • • • TLF80511 Feature List • • • • • • • Output Voltage 5 V Output Voltage Precision ± 2 % Output Current up to 400 mA Ultra Low Current Consumption 38 µA Very Low Dropout Voltage: 100 mV at 100 mA Output Current Extended Operating Range Starting at 3.3 V 1.3 Small Output Capacitor 1 µF Output Current Limit Overtemperature Shutdown Suitable for Use in Automotive Electronics Wide Temperature Range from -40 °C up to 150 °C Green Product (RoHS compliant) AEC Qualified Block Diagram I Q Current Limitation Bandgap Reference Temperature Shutdown GND BlockDiagram_VoltageRegulator_ne w.vsd Figure 1 Block and simplified application diagram of TLF80511 Application Note 2 Rev. 1.0, 2012-07-04 TLF80511 Demo Board Product Manual Demoboard 2 Demoboard The TLF80511 Demoboard is equipped with TLF80511TC and the necessary external components. Figure 2 TLF80511 Demoboard 2.1 Operating Conditions To avoid damage of the Demoboard, the maximum of the operating range defined in Table 1 must be followed. Table 1 Input / output operating range 1) Parameter Symbol Limit Values Min. V VIN - Vdrop 5 V 0 4) 400 3) mA IN 3.3 Regulator Output OUT Output Current IOUT 1) 2) 3) 4) Max. 45 3) Board Supply 2) Unit The demo board is operating at ambient temperature of 25°C. The min. value depends on the min. Extended Input Voltage Range of the TLF80511 The max. value depends on the max. rating of external components on the board and the TLF80511. The performance in low load condition (< 0.05 mA) is described in the TLF80511 data sheet [1]. Application Note 3 Rev. 1.0, 2012-07-04 TLF80511 Demo Board Product Manual Demoboard 2.2 Quick Start Procedure 1. With power off, connect the input power supply to IN and GND. 2. Connect the load between OUT and GND. 3. Turn on the input power supply. Make sure that the input voltage does not exceed 45 V. 2.3 Board Configuration The TLF80511 Demoboard is easy to use and provides a fixed output voltage of 5.0 V 2.4 Schematic Figure 3 TLF80511 Demoboard schematic 2.5 Bill of Material Table 2 Bill of material Part Value Package IN Banana jack BABU4MM GND Banana jack BABU4MM OUT Banana jack BABU4MM GND. Banana jack BABU4MM C1 100u/50V CPOL-EUE C2 100n/50V C0805 C3 1u/16V C0805 C4 100u/16V CPOL-EUSMCD R1 0R R0805 Application Note 4 Rev. 1.0, 2012-07-04 TLF80511 Demo Board Product Manual Demoboard 2.6 Board Layout Figure 4 TLF80511 Demoboard top layer component placement Figure 5 TLF80511 Demoboard top layer Application Note 5 Rev. 1.0, 2012-07-04 TLF80511 Demo Board Product Manual Demoboard Figure 6 TLF80511 Demoboard bottom layer Application Note 6 Rev. 1.0, 2012-07-04 TLF80511 Demo Board Product Manual Restrictions 3 Restrictions This Demoboard is offering limited features allowing you only to evaluate and test the Infineon products. The Demoboard is not an end product (or finished appliance), nor is it intended or authorized by Infineon to be integrated into end products. You are not authorized to use the Demoboard in any production system. Application Note 7 Rev. 1.0, 2012-07-04 TLF80511 Demo Board Product Manual Reference 4 [1] Reference TLF80511 Data Sheet (For further information you may contact http://www.infineon.com/) Application Note 8 Rev. 1.0, 2012-07-04 TLF80511 Demo Board Product Manual Revision History 5 Revision History TLF80511 Demoboard Revision History: Rev. 1.0 Rev. 1.0 Initial Version Application Note 9 Rev. 1.0, 2012-07-04 Edition 2012-07-04 Published by Infineon Technologies AG 81726 Munich, Germany © 2012 Infineon Technologies AG All Rights Reserved. LEGAL DISCLAIMER THE INFORMATION GIVEN IN THIS APPLICATION NOTE IS GIVEN AS A HINT FOR THE IMPLEMENTATION OF THE INFINEON TECHNOLOGIES COMPONENT ONLY AND SHALL NOT BE REGARDED AS ANY DESCRIPTION OR WARRANTY OF A CERTAIN FUNCTIONALITY, CONDITION OR QUALITY OF THE INFINEON TECHNOLOGIES COMPONENT. THE RECIPIENT OF THIS APPLICATION NOTE MUST VERIFY ANY FUNCTION DESCRIBED HEREIN IN THE REAL APPLICATION. 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) WITH RESPECT TO ANY AND ALL INFORMATION GIVEN IN THIS APPLICATION NOTE. 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 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.