Product Brief DC/DC Voltage Regulators High-Efficiency Switching Converters Infineon Technologies offers DC/DC converters fitting a broad range of industrial applications. By leveraging our long standing and market leading experience in automotive power supplies applications, we are expanding our portfolio to provide supply solutions to our customer’s current and future application needs. Applications automation Building management Battery chargers Metering systems Motor drives Industrial www.infineon.com/industrial-standard At a Glance Key Features Wide supply voltage operation range Low current consumption Current limitation and overtemperature protection Enable, soft start, sync features Key Benefits High-efficiency regulation inexpensive passive components Stable regulation with small external compensation For preregulation in pre/post power supply solutions Few Product Brief DC/DC Voltage Regulators High-Efficiency Switching Converters Application Diagram IFX90121 DIN VS LIN CIN1 CIN2 CIN3 LIN, CIN1 and CIN3 recommended for suppression of EME, DIN depending on application VS IFX90121 Overtemperature Shutdown EN Enable Buck Control LOUT SWO DCatch FREQ Oscillator SYNC VCC COUT Int. Supply R5 FB Bandgap Reference Soft Start Ramp Generator GND Product Summary Product Regulator Type Temperature Output Range Voltage [°C] [V] Output Current [mA] fsw [MHz] Quiescent Current [µA] Enable (Y/N) Reset Early Maximum Input Warning Voltage (Range) [V] Accuracy Output Voltage [%] Over Package Temperature Protection IFX80471SK V/V501) Buck Controller -40 … 125 Adj./5.0 2,300 0.36 2 Y Y Y 5.0–60 3 Y PG-DSO-14 IFX81481ELV1) Synchronous Buck Controller -40 … 125 Adj. 10,000 0.7 2 Y N N 4.75–45 2 Y PG-SSOP-14 IFX90121ELV50 Buck Regulator -40 … 125 5.0 500 2.2 2 Y N N 4.75–45 2 Y PG-SSOP-14 IFX91041EJ V/V33/V50 Buck Regulator -40 … 125 Adj./3.3/5.0 1,800 0.37 2 Y N N 4.75–45 2 Y PG-DSO-8-EP 1) with external MOSFET All our devices are especially designed for use in harsh environments. Green products (RoHS compliant) meet the world-wide customer require- Our robust design approach ensures delamination-free ICs and ments foe being environmentally friendly products and to be compliant long-term reliability. with government regulations. Green products are RoHS-Compliant. Published by Infineon Technologies AG 85579 Neubiberg, Germany © 2013 Infineon Technologies AG. All Rights Reserved. Visit us: www.infineon.com Order Number: B124-H9526-G1-X-7600 Date: 09 / 2013 Attention please! The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”). With respect to any examples or hints given herein, any typical values stated herein and/ or any information regarding the application of the device, 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. 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.