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BU27TA2WHFV-TR 数据表(PDF) 4 Page - Rohm |
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BU27TA2WHFV-TR 数据表(HTML) 4 Page - Rohm |
4 / 28 page Technical Note 4/27 BU TA2WNVX Series, BUTA2WHFV Series www.rohm.com 2009.05 - Rev.B © 2009 ROHM Co., Ltd. All rights reserved. Fig.4 Stability area characteristics (Example) Lineup ■ 200 mA BU□□TA2WNVX / HFV series Product Name 1.5 1.8 2.5 2.6 2.7 2.8 2.85 Package BU □□TA2WNVX BU □□TA2WHFV ○ ○ ○ ○ ○ ○ ○ SSON004X1216 HVSOF5 2.9 3.0 3.1 3.2 3.3 3.4 - ○ ○ ○ ○ ○ ○ - Model name: BU□□TA2WNVX / HFV a Symbol Contents Specification of output voltage a □□ Output voltage (V) □□ Output voltage (V) □□ Output voltage (V) 15 1.5 V(Typ.) 28 2.8 V(Typ.) 32 3.2 V(Typ.) 18 1.8 V(Typ.) 2J 2.85 V(Typ.) 33 3.3 V(Typ.) 25 2.5 V(Typ.) 29 2.9 V(Typ.) 34 3.4 V(Typ.) 26 2.5 V(Typ.) 30 3.0 V(Typ.) - - 27 2.7 V(Typ.) 31 3.1 V(Typ.) - - Input/Output terminal equivalent circuit schematic 1pin (VOUT) 2pin (GND) 3pin (STBY) 4pin (VIN) VIN STBY Fig.2 Input/Output equivalent circuit About input/output capacitor It is recommended to place a capacitor as close as possible to the pins between the input terminal and GND or between the output terminal and GND. The capacitor between the input terminal and GND becomes valid when source impedance increases or when wiring is long. The larger the capacity of the output capacitor between the output terminal and GND is, the better the stability and characteristics in output load fluctuation become. However, please check the status of actual implementation. Ceramic capacitors generally have variation, temperature characteristics, and direct current bias characteristics and the capacity value also decreases with time depending on the usage conditions. It is recommended to select a ceramic capacitor upon inquiring about detailed data of the related manufacturer. About the equivalent series resistance (ESR) of a ceramic capacitor Capacitors generally have ESR (equivalent series resistance) and it operates stably in the ESR-IOUT area shown on the right. Since ceramic capacitors, tantalum capacitors, electrolytic capacitors, etc. generally have different ESR, please check the ESR of the capacitor to be used and use it within the stability area range shown in the right graph for evaluation of the actual application. VOUT VIN Fig.3 Capacity – bias characteristics Capacity value of ceramic capacitor - DC bias characteristics (Example) -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 00.5 1 1.5 22.53 3.54 DC Bias Voltage [V] 10-V withstand voltage B1characteristics GRM188B11A105KA61D 10-V withstand voltage B characteristics 6.3-V withstand voltage B characteristics 4-V withstand voltage X6S characteristics 10-V withstand voltage F characteristics 10-V withstand voltage F characteristics 0.01 0.1 1 10 100 0 50 100 150 200 IOUT [mA] Stability area Unstable area |
类似零件编号 - BU27TA2WHFV-TR |
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类似说明 - BU27TA2WHFV-TR |
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