This evaluation board has been developed for ROHM’s step-down switching regulator customers evaluating BD9328EFJ. While accepting a wide power supply of 4.2 - 18V, a step down output of 3.3V or any external resistor defined voltage can be produced.
The ICs have two integrated low resistance N-channel MOSFETs and a fixed synchronization frequency of 380 kHz. A Soft Start circuit prevents in-rush current during startup along with UVLO (low voltage error prevention circuit) and TSD (thermal shutdown detection) protection circuits. An EN pin allows for simple ON/OFF control of the IC to reduce standby current consumption.
| Manufacturer | Rohm Semiconductor |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | 846-BD9328EFJ_EVK-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 |
2 A
|
| Voltage In |
4.2 ~ 18 V
|
| Efficiency @ Conditions |
>90%, 12V in, 3.3V @ 0.25 ~ 1.7 A
|
| Voltage Out Range |
- Fixed
|
| Features |
Electrolytic Free
Over Current Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Switching Frequency |
380 kHz
|
| Standby Current [Typical] |
15 µA
|
| Quiescent Current [Typical] |
1.2 mA
|
| Component Count + Extras |
11 + 5
|
| Internal Switch |
Yes
|
| Design Author |
Rohm
|
| Application / Target Market |
Point of Load (PoL)
|
| Standby Current [Maximum] |
27 µA
|
| Quiescent Current [Maximum] |
3 mA
|
| Main I.C. Base Part |
BD9328
|
| Date Created By Author | |
| Date Added To Library | 2023-02 |
Slovenia
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