Electronic Components Datasheet Search |
|
LM5118 Datasheet(PDF) 1 Page - Texas Instruments |
|
|
LM5118 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 37 page LM5118, LM5118-Q1 www.ti.com SNVS566G – APRIL 2008 – REVISED FEBRUARY 2013 Wide Voltage Range Buck-Boost Controller Check for Samples: LM5118, LM5118-Q1 1 FEATURES DESCRIPTION The LM5118 wide voltage range Buck-Boost 2 • LM5118-Q1 is an Automotive Grade product switching regulator controller features all of the that is AEC-Q100 grade 1 qualified (-40°C to functions necessary to implement a high 125°C operating junction temperature) performance, cost efficient Buck-Boost regulator • Ultra-wide input voltage range from 3V to 75V using a minimum of external components. The Buck- Boost topology maintains output voltage regulation • Emulated peak current mode control when the input voltage is either less than or greater • Smooth transition between step-down and than the output voltage making it especially suitable step- up modes for automotive applications. The LM5118 operates as • Switching frequency programmable to 500KHz a buck regulator while the input voltage is sufficiently greater than the regulated output voltage and • Oscillator synchronization capability gradually transitions to the buck-boost mode as the • Internal high voltage bias regulator input voltage approaches the output. This dual mode • Integrated high and low-side gate drivers approach maintains regulation over a wide range of • Programmable soft-start time input voltages with optimal conversion efficiency in the buck mode and a glitch-free output during mode • Ultra low shutdown current transitions. This easy to use controller includes • Enable input wide bandwidth error amplifier drivers for the high side buck MOSFET and the low • 1.5% feedback reference accuracy side boost MOSFET. The regulators control method is based upon current mode control utilizing an • Thermal shutdown emulated current ramp. Emulated current mode control reduces noise sensitivity of the pulse-width PACKAGE modulation circuit, allowing reliable control of the very • HTSSOP-20 (Exposed pad) small duty cycles necessary in high input voltage applications. Additional protection features include current limit, thermal shutdown and an enable input. The device is available in a power enhanced HTSSOP-20 package featuring an exposed die attach pad to aid thermal dissipation. 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 © 2008–2013, 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. |
Similar Part No. - LM5118 |
|
Similar Description - LM5118 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |