BD8312HFN-TR Power Management ICs - PMIC by Rohm

3.5-14V 1A 1ch Buck converter


ROHM’s 1.0A/1.5 MHz synchronous step-down switching regulator BD8312HFN produces step-down output including 1.2, 1.8, 3.3, or 5 V from 4 batteries, batteries such as Li2cell or Li3cell, etc. or a 5V/12V fixed power supply line. This IC allows easy production of small power supply by a wide range of external constants, and is equipped with an external coil/capacitor downsized by high frequency operation of 1.5 MHz, built-in synchronous rectification SW capable of withstanding 15 V, and flexible phase compensation system on board.

Where to Buy

Prices starting from US$0.33

Distributor Stock
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Farnell
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Future Electronics
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CoreStaff
from US$0.72
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Chip One Stop
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Newark Electronics
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Features

Input voltage range 3.5 to 14V 
Includes two power FET transistor (1.0A)
High speed frequency 1.5MHz .
Include gain phase compensation RC for error AMP.
Soft start circuit / Timer latched prevention circuit from shorting..
HSON8 package (2.9mm x 3mm, 0.65mm pitch ).

Specifications

ch 1
Integrated FET / Controller Integrated FET
Topology Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 3.5
Vin1(Max.)[V] 14
Vout1(Min.)[V] 1.2
Vout1(Max.)[V] 12
Iout1(Max.)[A] 1
SW frequency(Max.)[MHz] 1.5
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -25
Operating Temperature (Max.)[°C] 85
Package Size [mm] 2.9x3 (t=0.6)

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 3.5 to 14 V 1500 kHz Buck SMT Switching Regulator - HSON-8 | Future Electronics
Dc-Dc Switching Buck (Step Down) Regulator, Adjustable, 3.5V-14Vin, 1.2V-12Vout, 1Aout, Hson-8 Rohs Compliant: Yes |Rohm BD8312HFN-TR | Newark Electronics
Conv DC-DC Single Step Down 3.5V to 14V 8-Pin HSON T/R | Avnet America
DC-DC CONV, BUCK, ADJ, 1.5MHZ, HSON-8 | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD8312HFN-TR?

Additional datasheets, footprints and schematics for BD8312HFN-TR are listed on our Part Details page. You can also find images and similar parts to BD8312HFN-TR on this page.

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What category does BD8312HFN-TR fall under?

The BD8312HFN-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 BD8312HFN-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 BD8312HFN-TR you can contact the distributor directly for product support, shipping queries etc.

Is the BD8312HFN-TR RoHS compliant?

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

Which authorised distributors for BD8312HFN-TR have stock available?

Authorised distributors including Future Electronics, CoreStaff, Chip One Stop, Newark Electronics and Avnet America have stock available or on a lead time for BD8312HFN-TR.

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