1. No category

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