BD9102FVM-TR by Rohm

4.5-5.5V 0.8A 1ch Buck converter


ROHM's high efficiency step-down switching regulator (BD91??) is a power supply designed to produce a low voltage including 1 volts from 5 / 3.3 volts power supply line. Offers high efficiency with our original pulse skip control technology and synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden change in load.

Where to Buy

Prices starting from US$0.84

Distributor Stock
Logo for Farnell
Farnell
from US$0.85
No stock
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Logo for Chip One Stop
Chip One Stop
from US$1.31
200
in stock
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Logo for CoreStaff
CoreStaff
from US$0.84
50
in stock
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Logo for Future Electronics
Future Electronics
from US$1.21
-
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Logo for Avnet America
Avnet America
from US$1.17
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Features

1ch Switching Regulator
Offers fast transient response with current mode PWM control system
Offers highly efficiency for all load range with synchronous rectifier (Nch / Pch FET) and SLLM™ (Simple Light Load Mode)
Incorporates soft-start function.
Incorporates thermal protection and ULVO functions.
Incorporates short-current protection circuit with time delay function
Incorporates shutdown function. Icc=0μA (Typ.)

Specifications

ch 1
Integrated FET / Controller Integrated FET
Topology Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 4.5
Vin1(Max.)[V] 5.5
Vout1(Min.)[V] 1.24
Vout1(Max.)[V] 1.24
Iout1(Max.)[A] 0.8
SW frequency(Max.)[MHz] 1
Light Load mode Yes
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 85
Package Size [mm] 2.9x4 (t=0.9)

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
PCB Layout Techniques of Buck Converter
Phase Compensation Design for Current Mode Buck Converter
Bootstrap Circuit in the 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
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

BD Series 4 to 5.5 V 1000 kHz Buck SMT Switching Regulator - MSOP-8 | Future Electronics
Conv DC-DC Single Step Down 4V to 5.5V 8-Pin MSOP T/R | Avnet America
SW REG, S DOWN, HI EFFICIENCY, MSOP8 | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD9102FVM-TR?

Additional datasheets, footprints and schematics for BD9102FVM-TR are listed on our Part Details page. You can also find images and similar parts to BD9102FVM-TR on this page.

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Distributor pricing and stock information is available for BD9102FVM-TR on our Product Comparison page. Access via the 'View Pricing & Stock' button to view BD9102FVM-TR price breaks, MOQs, lead times, inventory and SKUs from distributors.

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Is the BD9102FVM-TR RoHS compliant?

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

Which authorised distributors for BD9102FVM-TR have stock available?

Authorised distributors including Chip One Stop, CoreStaff, Future Electronics, Avnet America and Farnell have stock available or on a lead time for BD9102FVM-TR.

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