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4-18V 2ch Boost / Inverting / Buck converter(controller) - BD9851EFV

BD9851EFV is a 2 channel step-down switching regulator. It is possible to choose small application space due to its high-speed operation (Max switching frequency 3MHz)

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number
Status
Package
Unit Quantity
Minimum Package Quantity
Packing Type
RoHS
BD9851EFV-E2 Active HTSSOP-B20 2500 2500 Taping Yes
 
Specifications:
Grade Standard
ch 2
Integrated FET / Controller Controller
Buck / Boost / Buck-Boost / Inverting Buck / Boost / Inverting
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 4.0
Vin1(Max.)[V] 18.0
Iout1(Max.)[A] 0.2
Vin2(Min.)[V] 4.0
Vin2(Max.)[V] 18.0
SW frequency(Max.)[MHz] 3.0
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Features:
  • ・2 Channel Power MOSFET driver
    ・Selectable Drive FET (N / P channel FET)
    ・Short Circuit Protection (SCP) by delay time and latch method
    ・Under Voltage Lock Out (UVLO)
    ・Thermal Shut Down (TSD)
    ・Stand-by / Active control
    ・Package : HTSSOP-B20
 
 
Applications:
Pin Configuration:
Pin Configration
 
 
Technical Data
Application Note

Capacitor Calculation for Buck converter IC

Application Note

Inductor Calculation for Buck converter IC

Application Note

Resistor Value Table to set Output Voltage of Buck Converter IC

Application Note

Thermal Resistance

Application Note

PCB Layout Techniques of Buck Converter

Application Note

The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit

Application Note

Calculation of Power Loss (Synchronous)

Application Note

Considerations for Power Inductors Used for Buck Converters

Application Note

Snubber Circuit for Buck Converter IC

Application Note

Efficiency of Buck Converter