3.6-35V 2ch Buck converter(controller) - BD9848FV
BD9848FV is an IC containing two circuits of switching regulator controller by pulse width modulation system. Both of two circuits can be used for step-down DC/DC converter operation. In addition, the package is designed compact, and is optimum for compact power supply for many kinds of equipment.
|* This product is a STANDARD grade product and not recommend for on-vehicle devices.|
|Integrated FET / Controller||Controller|
|Buck / Boost / Buck-Boost / Inverting||Buck|
|Synchronous / Nonsynchronous||Nonsynchronous|
|Light Load mode||No|
|Operating Temperature (Min.)[°C]||-40|
|Operating Temperature (Max.)[°C]||105|
- ・High voltage resistance input (Vcc=35V)
・FET driver circuit is contained (step-down circuit 2 output).
・Error amplifier reference voltage (1.0V±1%) and REG output circuit (2.5V) are contained.
・Over current detection circuit is contained. (Continuous detection of 5 cycles)
・Soft start and pause period can be adjusted.
・Three modes of standby, master, and slave can be switched. (Iccs = 0μA typ in standby mode.)
・ON / OFF control is enabled independently for each channel. (DT terminal)
Capacitor Calculation for Buck converter IC
Inductor Calculation for Buck converter IC
Resistor Value Table to set Output Voltage of Buck Converter IC
PCB Layout Techniques of Buck Converter
The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
Calculation of Power Loss (Synchronous)
Considerations for Power Inductors Used for Buck Converters
Snubber Circuit for Buck Converter IC
Efficiency of Buck Converter
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)