參數(shù)資料
型號: TPS5420MDREPG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 5.2 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
封裝: GREEN, PLASTIC, MS-012AA, SOIC-8
文件頁數(shù): 8/23頁
文件大?。?/td> 658K
代理商: TPS5420MDREPG4
www.ti.com
Thermal Calculations
SLVS717 – DECEMBER 2006
ADVANCED INFORMATION (continued)
The following formulas show how to estimate the device power dissipation under continuous conduction mode
operations. They should not be used if the device is working at light loads in the discontinuous conduction mode.
Conduction loss: Pcon = IOUT
2
× r
DS(on)× VOUT/VIN
Switching loss: Psw = VIN× IOUT× 0.01
Quiescent current loss: Pq = VIN× 0.01
Total loss: Ptot = Pcon + Psw + Pq
Given TA => Estimated junction temperature: TJ = TA + Rth × Ptot
Given TJMAX = 125°C => Estimated maximum ambient temperature: TAMAX = TJMAX Rth × Ptot
16
相關PDF資料
PDF描述
TPS5420MDREP 5.2 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
TPS54225PWP 4.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO14
TPS54225PWPR 4.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO14
TPS54225TPWPRQ1 SWITCHING REGULATOR, PDSO14
TPS54226PW
相關代理商/技術(shù)參數(shù)
參數(shù)描述
TPS5420-Q1 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-A WIDE-INPUT-RANGE STEP-DOWN SWIFTa?¢ CONVERTER
TPS5420QDRQ1 功能描述:直流/直流開關調(diào)節(jié)器 2A Wide-Input-Range Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54218 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95 V to 6 V Input 2 A Output 2MHz Synchronous Step Down Switcher With Integrated FETs (SWIFT)
TPS54218_12 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.95 V to 6 V Input, 2 A Output, 2MHz, Synchronous Step Down
TPS54218EVM-511 功能描述:電源管理IC開發(fā)工具 Converter Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V