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BD9D320EFJ-EVK-001 Evaluation board delivers an output 3.3 volts from an input 5.08 to 18 volts using BD9D320EFJ, a synchronous rectification step-down DC/DC converter integrated circuit, with output current rating of maximum 3A. It offers high efficiency in all load ranges by equipping the efficiency improvement function in light-load. The output voltage can be set by changing the external parts of circuit and the loop-response characteristics also can be adjusted by the phase compensation circuit.
BD9D320EFJ is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. It is capable of providing current of up to 3 A. External phase compensation circuit is not necessary for it is a constant on-time control DC/DC converter with high speed response.
| Manufacturer | Rohm Semiconductor |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | BD9D320EFJ-EVK-001-ND |
| Eval Board Supplier | Rohm Semiconductor |
| Eval Board |
Board not Stocked
|
| Topology |
Step Down
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
3.3 V
|
| Current Out |
3 A
|
| Voltage In |
5.08 ~ 18 V
|
| Efficiency @ Conditions |
>85%, 12V in, 3.3V @ 0.5 ~ 3 A
|
| Voltage Out Range |
- Fixed
|
| Features |
Over Current Protection
Short Circuit Protection Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
700 kHz
|
| Standby Current [Typical] |
2 µA
|
| Quiescent Current [Typical] |
1 mA
|
| Component Count + Extras |
14 + 5
|
| Internal Switch |
Yes
|
| Design Author |
Rohm
|
| Application / Target Market |
DVD/Blu-ray Players
FPGA / DSP / Processors LCD TV / Monitor Set-Top Boxes |
| Standby Current [Maximum] |
15 µA
|
| Quiescent Current [Maximum] |
2 mA
|
| Main I.C. Base Part |
BD9D320EFJ
|
| Date Created By Author | 2014-12 |
| Date Added To Library | 2019-11 |
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Orders are typically delivered to Bulgaria within 48 hours depending on location.
Free delivery to Bulgaria on orders of $100 USD or more. A delivery charge of $30 USD will be billed on all orders less than $100 USD.
UPS or FedEx freight pre-paid: DDP (Duty and customs paid by DigiKey)
DHL freight pre-paid: CPT (Duty, customs, and VAT due at time of delivery)
Credit account for qualified institutions and businesses
Payment in Advance by Wire Transfer
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![]()
![]()


More Products From Fully Authorized Partners
Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.
Incoterms: CPT (Duty, customs, and applicable VAT/Tax due at time of delivery)
For more information visit Help & Support
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