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8-35V 1.5A 1ch Buck converter - BD9873CP-V5

The BD9873CP-V5 and BD9874CP-V5 single-channel step-down switching regulator incorporates a Pch MOSFET capable, as well as circuitry that eliminates the need for external compensation – only a diode, coil, and ceramic capacitor are required – reducing board size significantly.

* 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
BD9873CP-V5E2 Active TO220CP-V5 500 500 Taping Yes
 
Specifications:
Grade Standard
ch 1
Integrated FET / Controller Integrated FET
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Nonsynchronous
Vin1(Min.)[V] 8.0
Vin1(Max.)[V] 35.0
Vout1(Min.)[V] 1.0
Vout1(Max.)[V] 28.0
Iout1(Max.)[A] 1.5
SW frequency(Max.)[MHz] 0.11
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Features:
  • ・Maximum switching current : 1.5A, 3.0A
    ・Built-in Pch FET ensures high efficiency
    ・Output voltage adjustable via external resistors
    ・High switching frequency : 110kHz (fixed)
    ・Soft start time : 4ms (fixed)
    ・Over current and thermal shutdown protection circuits built in
    ・ON/OFF control via STBY pin
 
 
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

Application Note

Buck DC/DC Converter Recommended Inductor List