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3.6-35V 2ch Boost / Inverting / Buck converter(controller) - BA9741FS

This IC is a 2 channel step-down switching regulator. Both circuit are available for step-down, step-up, invertive. It is small package, therefor it is best for mobile products.

* 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
BA9741FS-E2 Active SSOP-A16 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] 3.6
Vin1(Max.)[V] 35.0
Iout1(Max.)[A] 0.1
Vin2(Min.)[V] 3.6
Vin2(Max.)[V] 35.0
SW frequency(Max.)[MHz] 0.8
Light Load mode No
EN No
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Features:
  • ・Timer latch, short-circuit protection circuit is built in.
    ・Circuit to prevent malfunction during low input voltage is built in.
    ・Built-in reference voltage (2.5V) circuit with output pin.
    ・Dead time over the whole range of possible to adjust half period of whole duty range.
    ・A wide input range provided Vcc=3.6 to 35V.
 
 
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