BD9D323QWZ-E2 Power Management ICs - PMIC by Rohm

4.5V to 18V Input, 3.0A Integrated MOSFET 1ch Synchronous Buck DC/DC Converter

Status: Recommended
Series: -
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

BD9D323QWZ is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. It is capable of providing current of up to 3A. External phase compensation circuit is not necessary for it is a constant on-time control DC/DC converter with fast transient response.

Prices starting from US$0.24


Distributor Starting From Stock
Logo for CoreStaff CoreStaff US$0.30
4,000
Buy Now
Logo for Chip One Stop Chip One Stop US$0.24
100
Buy Now
Logo for Newark Electronics Newark Electronics US$0.42
-
Buy Now
Logo for Avnet America Avnet America US$0.38
-
Buy Now
Logo for element14 element14 US$0.41
-
Buy Now
Logo for Avnet Asia Avnet Asia -
-
Buy Now
View Full Pricing & Stock Comparison

Features

Synchronous Single DC/DC Converter
Constant On-time Control
Over Current Protection
Thermal Shutdown Protection
Under Voltage Lockout Protection
Adjustable Soft Start
UMMP008Z2020 Package (Backside Heat Dissipation)

Specifications

ch 1
Integrated FET / Controller Integrated FET
Topology Buck
Synchronous / Nonsynchronous Synchronous
Vin1(Min.)[V] 4.5
Vin1(Max.)[V] 18
Vout1(Min.)[V] 0.765
Vout1(Max.)[V] 7
Iout1(Max.)[A] 3
SW frequency(Max.)[MHz] 0.7
Light Load mode No
EN Yes
PGOOD No
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Package Size [mm] 2x2 (t=0.4)

Resources




Schematic Design & Verification
Buck DC/DC Converter Recommended Inductor List
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


Package Information
Package Information

Manufacturing Data
Factory Information

Alternative Descriptions

Dc/Dc Conv, Sync Buck, 700Khz, 85Degc | Newark Electronics
Conv DC to DC Single Step Down 4.5V to 18V 8-Pin UMMP Emboss T/R | Avnet America
DC/DC CONV, SYNC BUCK, 700KHZ, 85DEGC | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BD9D323QWZ-E2?

Additional datasheets, footprints and schematics for BD9D323QWZ-E2 are listed on our Part Details page. You can also find images and similar parts to BD9D323QWZ-E2 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for BD9D323QWZ-E2 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view BD9D323QWZ-E2 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does BD9D323QWZ-E2 fall under?

The BD9D323QWZ-E2 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 BD9D323QWZ-E2 when available in the DC / DC Adjustable Switching Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the BD9D323QWZ-E2 you can contact the distributor directly for product support, shipping queries etc.

Is the BD9D323QWZ-E2 RoHS compliant?

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

Which authorised distributors for BD9D323QWZ-E2 have stock available?

Authorised distributors including CoreStaff, Chip One Stop, Newark Electronics, Avnet America and element14 have stock available or on a lead time for BD9D323QWZ-E2.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for BD9D323QWZ-E2 often in real-time on the comparison pages.

What if I can't find stock of BD9D323QWZ-E2?

You can fill out our help required form which you can use to request a quote for BD9D323QWZ-E2 from some of our verified obsolescence suppliers. Alternatively, contact us via our web chat in the bottom left of your screen and one of our team will try to help.

We use cookies to improve your experience. See our privacy policy.
Okay