전자부품 데이터시트 검색엔진 |
|
TPS54873PWPR 데이터시트(PDF) 1 Page - Texas Instruments |
|
|
TPS54873PWPR 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 23 page TPS54873 SLVS444A − OCTOBER 2002 − REVISED FEBRUARY 2005 4-V TO 6-V INPUT, 8-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-UP 6,4 mm X 9,7 mm Typical Size FEATURES D 30-mΩ, 12-A Peak MOSFET Switches for High Efficiency at 8-A Continuous Output Source or Sink Current D Disabled Current Sinking During Start-Up D 0.9-V to 3.3-V Adjustable Output Voltage Range With 1.0% Accuracy D Wide PWM Frequency: Fixed 350 kHz, 550 kHz or Adjustable 280 kHz to 700 kHz D Synchronizable to 700 kHz D Load Protected by Peak Current Limit and Thermal Shutdown D Integrated Solution Reduces Board Area and Component Count APPLICATIONS D Low-Voltage, High-Density Distributed Power Systems D Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors D Broadband, Networking and Optical Communications Infrastructure D Power PC Series Processors DESCRIPTION As a member of the SWIFT™ family of dc/dc regulators, the TPS54873 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4 V; an internally or externally set slow-start circuit to limit inrush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing. For reliable power up in output precharge applications, the TPS54873 is designed to only source current during startup. The TPS54873 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT™ designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles. TYPICAL APPLICATION VIN PH BOOT PGND VSENSE Core Supply COMP AGND VBIAS I/O Supply TPS54873 ** * Optional 5.0 ms/div START-UP WAVEFORM VO = 3.3 V ** VI = 5 V PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. PowerPAD and SWIFT are trademarks of Texas Instruments. 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. www.ti.com Copyright © 2002, Texas Instruments Incorporated |
유사한 부품 번호 - TPS54873PWPR |
|
유사한 설명 - TPS54873PWPR |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 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 |