Os motores de busca de Datasheet de Componentes eletrônicos |
|
LM27341 Folha de dados(PDF) 1 Page - Texas Instruments |
|
|
LM27341 Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 42 page LM27341, LM27342, LM27341Q, LM27342Q www.ti.com SNVS497D – NOVEMBER 2008 – REVISED FEBRUARY 2010 LM27341/LM27342/LM27341Q/LM27342Q 2 MHz 1.5A/2A Wide Input Range Step-Down DC- DC Regulator with Frequency Synchronization Check for Samples: LM27341, LM27342, LM27341Q, LM27342Q 1 FEATURES DESCRIPTION The LM27341 and LM27342 regulators are 2 • Space Saving 3 x 3 mm 10-Pin SON and monolithic, high frequency, PWM step-down DC-DC MSOP-PowerPad Packages converters in 10-pin SON and 10-pin MSOP- • Wide Input Voltage Range: 3V to 20V PowerPad packages. They contain all the active • Wide Output Voltage Range: 1V to 18V functions to provide local DC-DC conversion with fast transient response and accurate regulation in the • LM27341 Delivers 1.5A Maximum Output smallest possible PCB area. Current With a minimum of external components the • LM27342 Delivers 2A Maximum Output Current LM27341 and LM27342 are easy to use. The ability • High Switching Frequency: 2 MHz to drive 1.5A or 2A loads respectively, with an internal • Frequency Synchronization: 1.00 MHz < fSW < 150 m Ω NMOS switch results in the best power 2.35 MHz density available. The world-class control circuitry allows for on-times as low as 65 ns, thus supporting • 150 m Ω NMOS Switch with Internal Bootstrap exceptionally high frequency conversion. Switching Supply frequency is internally set to 2 MHz and • 70 nA Shutdown Current synchronizable from 1 to 2.35 MHz, which allows the • Internal Voltage Reference Accuracy of 1% use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency • Peak Current-Mode, PWM Operation is very high, efficiencies up to 90% are easy to • Thermal Shutdown achieve. External shutdown is included featuring an • LM27341Q and LM27342Q are AEC-Q100 ultra-low shutdown current of 70 nA. The LM27341 Grade 1 Qualified and are Manufactured on an and LM27342 utilize peak current-mode control and Automotive Grade Flow internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry APPLICATIONS to reduce inrush current, pulse-by-pulse current limit, • Local 12V to Vcore Step-Down Converters thermal shutdown, and output over-voltage • Radio Power Supply protection. • Core Power in HDDs • Set-Top Boxes • Automotive • USB Powered Devices • DSL Modems 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Nº de peça semelhante - LM27341 |
|
Descrição semelhante - LM27341 |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |