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7.5-15V 2ch Synchronous Buck converter(controller) with Built-in Linear Regulator - BD9536FV

BD9536FV is a 2ch switching regulator controller that can generate low output voltages (0.7V to 5.5V) from a wide input voltage range (7.5V to 15V). High efficiency for the switching regulator can be achieved due to its internal N-MOSFET power transistor. The IC also incorporates a new technology called H3Reg™, a Rohm proprietary control method which facilitates ultra-high transient response against changes in load. For protection and ease of use, the IC also incorporates soft start, variable frequency, and short circuit protection with timer latch functions. This switching regulator is specially designed for DRAM and power supplies for graphics chips.

* 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
BD9536FV-E2 Active SSOP-B28 2000 2000 Taping Yes
 
Specifications:
Grade Standard
ch 2
Integrated FET / Controller Controller
Buck / Boost / Buck-Boost / Inverting Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 7.5
Vin1(Max.)[V] 15.0
Vout1(Min.)[V] 0.7
Vout1(Max.)[V] 5.5
Vin2(Min.)[V] 7.5
Vin2(Max.)[V] 15.0
Vout2(Min.)[V] 0.7
Vout2(Max.)[V] 5.5
SW frequency(Max.)[MHz] 0.6
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -20
Operating Temperature (Max.)[°C] 100
Features:
  • ・2ch H3Reg™ DC/DC converter controller
    ・Thermal Shut Down (TSD), Under-Voltage Lock-Out (UVLO),
    Adjustable Over Current Protection (OCP) : detected FET Ron,
    Over Voltage Protection (OVP), Short Circuit Protection (SCP) built-in
    ・Soft start function to minimize rush current during startup
    ・Adjustable switching frequency (f = 200 kHz to 600 kHz)
    ・Built-in 5V power supply for FET driver
    ・Integrated bootstrap diode
 
 
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Technical Data
Application Note

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

Application Note

Thermal Resistance

Application Note

Calculation of Power Loss (Synchronous)

Application Note

Thermal Resistance

Application Note

Resistor Value Table to set Output Voltage of Buck Converter IC

Application Note

PCB Layout Techniques of Buck Converter

Application Note

Snubber Circuit for Buck Converter IC

Application Note

Capacitor Calculation for Buck converter IC

Application Note

Inductor Calculation for Buck converter IC

Application Note

Buck DC/DC Converter Recommended Inductor List

Application Note

Efficiency of Buck Converter

Application Note

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

Application Note

Considerations for Power Inductors Used for Buck Converters