LM3354-4.1EVAL

OBSOLETE User's Guide SNVA045D – October 2000 – Revised April 2013 AN-1214 LM3354/5 Evaluation Board 1 Introduction The LM3354 and LM3355 are switched capacitor DC/DC converters which utilize a number of different gains to achieve output regulation. The LM3354/5 evaluation board is programmed for an output of 4.1V, ideal for White or Blue LED applications. An LM3354 1.8V option is also available. The LM3355 is capable of up to 50mA of output current while the LM3354 is capable of up to 90mA of output current. See the LM3354 Regulated 90mA Buck-Boost Switched Capacitor DC/DC Converter (SNVS157) data sheet for more information on driving LED's or for information on other standard voltage options of the LM3354. A bill of materials and a schematic follow: Table 1. LM3354/5 Evaluation Board List of Components Designator 2 Description Manufacturer U1 LM3354/5 DC/DC Converter Texas instruments CIN 10µF ceramic capacitor (X5R, 6.3V) Taiyo Yuden COUT 10µF ceramic capacitor (X5R, 6.3V) Taiyo Yuden C1 0.33µF ceramic capacitor (X7R, 16V) Taiyo Yuden C2 0.33µF ceramic capacitor (X7R, 16V) Taiyo Yuden CFIL 1µF ceramic capacitor (X7R, 10V) Taiyo Yuden Typical Application Circuit Figure 1. Basic Buck/Boost Regulator All trademarks are the property of their respective owners. SNVA045D – October 2000 – Revised April 2013 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated AN-1214 LM3354/5 Evaluation Board 1 OBSOLETE Typical Application Circuit www.ti.com Figure 2. Typical Layout, Top View (magnification 1.5X) 2 AN-1214 LM3354/5 Evaluation Board SNVA045D – October 2000 – Revised April 2013 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily performed. TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in safety-critical applications. In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and requirements. Nonetheless, such components are subject to these terms. No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties have executed a special agreement specifically governing such use. Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use of non-designated products, TI will not be responsible for any failure to meet ISO/TS16949. Products Applications Audio www.ti.com/audio Automotive and Transportation www.ti.com/automotive Amplifiers amplifier.ti.com Communications and Telecom www.ti.com/communications Data Converters dataconverter.ti.com Computers and Peripherals www.ti.com/computers DLP® Products www.dlp.com Consumer Electronics www.ti.com/consumer-apps DSP dsp.ti.com Energy and Lighting www.ti.com/energy Clocks and Timers www.ti.com/clocks Industrial www.ti.com/industrial Interface interface.ti.com Medical www.ti.com/medical Logic logic.ti.com Security www.ti.com/security Power Mgmt power.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Microcontrollers microcontroller.ti.com Video and Imaging www.ti.com/video RFID www.ti-rfid.com OMAP Applications Processors www.ti.com/omap TI E2E Community e2e.ti.com Wireless Connectivity www.ti.com/wirelessconnectivity Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2013, Texas Instruments Incorporated