昇降圧の自動切換え制御方式を採用、高効率な電源を実現 Constitute High Efficiency Power Supply by Smooth Transition Three Mode (Buck, Boost and Buck Boost) 自動切換え式昇降圧 スイッチングレギュレータコントローラ Automatically Control Buck and Boost Switching Regulator Controller BD9035AEFV Features ●昇圧・降圧・昇降圧の動作モードが入出力電圧に応じて 自動で切換え Automatically change control mode (Buck, Boost and Buck and Boost) ●3.8V∼30Vの広い電源電圧範囲、耐圧40V Wide input randge 3.8V to 30V, Absolute Maximum Ratings:40V ●周波数精度±7%、PLL内蔵の外部同期装備 HTSSOPB24 Switching Frequency accuracy±7% (-40°C to 125°C) Synchronous external frequency with PLL function POINT Applications ●車載機器 降圧 DC/DC Automoive BD9035AEFV Buck Convertor ●カーオーディオ、ナビゲーション T Car Accescary, Car Audio ●その他電源装置 T 入力変動 Input waveform T T Other Power Supply 出力変動 Output waveform POINT ■従来品との効率比較 入力電圧が低下すると、 出力電圧も低下 入力電圧が低下しても、 一定の出力電圧を保持 Even when the input voltage is lowered, and maintain the constant output voltage Input voltage drops, the output voltage is also reduced Efficiency competition with Conventional 90.0 BD9035AEFV 85.0 ■昇降圧DCDCを使用することで、出力変動を抑えることができます Efficiency (%) Prevent output drop by using buck and boost switching Regulator 従来の方式 80.0 Conventional 入力電圧 75.0 入力電圧が変化 Tek Stop Input voltage changes Input voltage 70.0 降圧側SW Buck side SW 65.0 昇圧側SW 60.0 Boost side SW 出力電圧 Output voltage 55.0 50.0 一定出力を保持 VCC=12V, Vo=6V, f=350kHz 0 0.5 1 1.5 keep asonstant output 2 降圧 Output Current (A) Buck 新方式により従来の方式より高効率を実現 昇降圧 Buck-Boost 昇圧 Boost 動作モードを自動切換え The automatic switching the operating mode New control type makes higher efficiency than conventional type Lineup External FET 1ch Buck-Boost Converter Swiching Controller Part No. Power Supply Voltage (V) Output type Reference voltageaccuracy (%) Operating temperature (°C) Operating frequency (kHz) Package BD9035AEFV-C 3.8 to 30 Push Pull ±1.5 −40 to +125 100 to 600 HTSSOPB24
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