Product Brief TLF80511 High performance linear voltage regulator The TLF80511EJ is a linear low dropout voltage regulator for load currents up to 400 mA. An input voltage of up to 40 V is regulated to 5 V or 3.3 V output voltage with ±2% precision. The TLF80511 with a typical quiescent current of 38 µA, is the ideal solution for systems requiring very low operating currents, 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 TLF80511EJ suitable to supply automotive systems with advanced cranking conditions. In addition, the TLF80511’s new fast regulation concept requires only a single, 1 µF output capacitor to maintain stable regulation. The device is designed for the harsh environment of automotive applications. Therefore standard features like output current limitation and over temperature shutdown are implemented and protect the device against failures like output short circuit to GND, over-current and over-temperatures. The TLF80511 can be also used in all other automotive applications requiring a stabilized 5 V or 3.3 V supply voltage. Application schematic Q CI CQ Current limitation Temperature shutdown Microcontroller I www.infineon.com ››V : from 3.3 V to 40 V ››V : 3.3 V & 5 V (±2%) ››I (max): 400 mA ››I : 38 µA ››C : 1 µF ››V : 100 mV @ 100 mA ››Temp. range: -40 °C ≤ T ≤ 150 °C IN Q Q q Q drop J Key benefits ››Excellent transient robustness – lower input filtering cost ››Excellent load step response – smaller ceramic output cap ›› Very low cranking – 3.3 V input & very low dropout ››Suitable for stop & start system Applications ››2 wheeler ››Automotive general ECU ››Automotive dashboard ››Clima control (HVAC) ››Start-stop control unit Battery line Key features Product Brief TLF80511 High performance linear voltage regulator Application 2-wheeler HITFET™ BTS3410G Inputs/outputs 8-bit Microcontroller XC8xx High-side/low-side driver Supply Voltage regulator TLF80511 TLS850F0 +12 V from battery PROFET™ BTS5016-1 PROFET™ BTS5016-1 PROFET™ BTS5020-2EKA BTS5030-2EKA Motorcycle BCM Sales name OPN Voutput [V] Vinput [V] Ioutput (max) [mA] Cout [µF] Package TLF80511EJ V33 TLF80511EJV33XUMA1 3.3 3.3–40 400 1 DSO-8 (exposed pad) TLF80511EJ V50 TLF80511EJV50XUMA1 5.0 3.3–40 400 1 DSO-8 (exposed pad) TLF80511TF V33 TLF80511TFV33ATMA1 3.3 3.3–40 400 1 TO252-3 TLF80511TF V33 BOARD TLF80511TFV33 BOARDTOBO1 3.3 3.3–40 400 1 Demoboard TLF80511TF V50 TLF80511TFV50ATMA1 5.0 3.3–40 400 1 TO252-3 TLF80511TF V50 BOARD TLF80511TFV50 BOARDTOBO1 5.0 3.3–40 400 1 Demoboard TLF80511TC TLF80511TCATMA1 3.3 3.3–40 400 1 TO263-3 DEMOBOARD TLF80511TC DEMOBOARD TLF80511TCTOBO1 5.0 3.3–40 400 1 Demoboard Published by Infineon Technologies AG 85579 Neubiberg, Germany © 2015 Infineon Technologies AG. All Rights Reserved. Please note! THIS DOCUMENT IS FOR INFORMATION PURPOSES ONLY AND ANY INFORMATION GIVEN HEREIN SHALL IN NO EVENT BE REGARDED AS A WARRANTY, GUARANTEE OR DESCRIPTION OF ANY FUNCTIONALITY, CONDITIONS AND/OR QUALITY OF OUR PRODUCTS OR ANY SUITABILITY FOR A PARTICULAR PURPOSE. WITH REGARD TO THE TECHNICAL SPECIFICATIONS OF OUR PRODUCTS, WE KINDLY ASK YOU TO REFER TO THE RELEVANT PRODUCT DATA SHEETS PROVIDED BY US. OUR CUSTOMERS AND THEIR TECHNICAL DEPARTMENTS ARE REQUIRED TO EVALUATE THE SUITABILITY OF OUR PRODUCTS FOR THE INTENDED APPLICATION. WE RESERVE THE RIGHT TO CHANGE THIS DOCUMENT AND/OR THE INFORMATION GIVEN HEREIN AT ANY TIME. Order Number: B124-I0203-V1-7600-EU-EC-P Date: 11 / 2015 Additional information For further information on technologies, our products, the application of our products, delivery terms and conditions and/or prices please contact your nearest Infineon Technologies office (www.infineon.com). Warnings Due to technical requirements, our products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office. Except as otherwise explicitly approved by us in a written document signed by authorized representatives of Infineon Technologies, our products may not be used in any life endangering applications, including but not limited to medical, nuclear, military, life critical or any other applications where a failure of the product or any consequences of the use thereof can result in personal injury.