BD9778HFP-TR Power Management ICs - PMIC by Rohm

7.0-35V 2A 1ch Buck converter

Status: Recommended
Series: -
RoHS: Compliant
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The flexible step-down switching regulator of the ROHM is a switching regulator with built-in POWER MOSFET, which withstands high pressure. The operational frequency is freely configurable with external resistance. A wide input voltage range (7V to 35V) and temperature range (-40? to 125?) can correspond to various applications by the feature. Moreover, because the enhanced protection circuit such as thermal shut down (TSD), over current protection (OCP) and under voltage lock out (UVLO) is built into, the application can be protected, and the high reliability of the set be achieved under various conditions.

Prices starting from US$1.35


Distributor Starting From Stock
Logo for CoreStaff CoreStaff US$1.35
1,000
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Logo for Chip One Stop Chip One Stop US$2.07
500
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Logo for Newark Electronics Newark Electronics US$2.46
-
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Logo for Future Electronics Future Electronics US$2.36
-
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Logo for Avnet America Avnet America US$2.44
-
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Logo for element14 element14 US$2.51
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Logo for Avnet Asia Avnet Asia -
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Features

Wide input voltage range : 7V to 35V
Standby mode supply current : 0microA (Typ.)
Output voltage setting enabled with external resistor : 1V to V
in
Oscillation frequency variable with external resistor : 50 to 500kHz
Built-in P-ch POWER MOSFET

Specifications

ch 1
Integrated FET / Controller Integrated FET
Topology Buck
Synchronous / Nonsynchronous Non-synchronous
Vin1(Min.)[V] 7
Vin1(Max.)[V] 35
Vout1(Min.)[V] 1
Vout1(Max.)[V] 35
Iout1(Max.)[A] 2
SW frequency(Max.)[MHz] 0.5
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 125
Package Size [mm] 9.395x10.54 (t=2.005)

Resources




Schematic Design & Verification
Calculation of Power Dissipation in Switching Circuit
Considering Input Filter to Reduce Conducted Emissions by DCDC Converter
Considering Polarity of Power Inductor to Reduce Radiated Emission of DC-DC converter
Method for Monitoring Switching Waveform
Phase Compensation Design for Current Mode Buck Converter
Method for Determining Constants of Peripheral Parts of Buck DC/DC Converter
Power Supply Sequence Circuit with General Purpose Power Supply IC
Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
Diode Selection Method for Asynchronous Converter
PCB Layout Techniques of Buck Converter
Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
Usage of SPICE Macromodel for DC/DC
Snubber Circuit for Buck Converter IC
Efficiency of Buck Converter
Calculation of Power Loss (Synchronous)
Inductor Calculation for Buck converter IC
Considerations for Power Inductors Used for Buck Converters
Capacitor Calculation for Buck converter IC
The Important Points of Multi-layer Ceramic Capacitor Used in Buck Converter circuit
Resistor Value Table to set Output Voltage of Buck Converter IC
Importance of Probe Calibration When Measuring Power: Deskew
Impedance Characteristics of Bypass Capacitor



Manufacturing Data
Factory Information



Alternative Descriptions

Dc-Dc Switching Buck (Step Down) Regulator, Adjustable, 7V-35Vin, 1V-35Vout, 2Aout, To-263-7 Rohs Compliant: Yes |Rohm BD9778HFP-TR | Newark Electronics
BD Series 7 to 35 V 500 kHz Buck SMT Switching Regulator - HRP-7 | Future Electronics
DC DC Cntrlr Single-OUT Step Down 7V to 35V Input 8-Pin(7+Tab) HRP T/R | Avnet America
DC/DC CONV, BUCK, ADJ O/P, 500KHZ, HRP-7 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD9778HFP-TR?

Additional datasheets, footprints and schematics for BD9778HFP-TR are listed on our Part Details page. You can also find images and similar parts to BD9778HFP-TR on this page.

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What category does BD9778HFP-TR fall under?

The BD9778HFP-TR is listed under Semiconductors - ICs > Power Management ICs - PMIC > Voltage Regulators > DC / DC Adjustable Switching Regulators.

Can I view similar or alternative parts?

You can view similar parts to BD9778HFP-TR when available in the DC / DC Adjustable Switching Regulators range under the specifications section at the bottom of the details page.

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Submit any questions directly to the customer support team of the distributor listing the product. For the BD9778HFP-TR you can contact the distributor directly for product support, shipping queries etc.

Is the BD9778HFP-TR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ROHM Semiconductor.

Which authorised distributors for BD9778HFP-TR have stock available?

Authorised distributors including CoreStaff, Chip One Stop, Newark Electronics, Future Electronics and Avnet America have stock available or on a lead time for BD9778HFP-TR.

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