Integrated Circuits (ICs)
BD9D321EFJ-E2
ActiveRohm Semiconductor
DC-DC SWITCHING BUCK STEP DOWN REGULATOR, ADJUSTABLE, 4.5V-18VIN, 765MV-7VOUT, 3AOUT, HTSOP-8 ROHS COMPLIANT: YES
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Integrated Circuits (ICs)
BD9D321EFJ-E2
ActiveRohm Semiconductor
DC-DC SWITCHING BUCK STEP DOWN REGULATOR, ADJUSTABLE, 4.5V-18VIN, 765MV-7VOUT, 3AOUT, HTSOP-8 ROHS COMPLIANT: YES
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Technical Specifications
Parameters and characteristics for this part
| Specification | BD9D321EFJ-E2 |
|---|---|
| Current - Output | 3 A |
| Frequency - Switching | 700 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 C |
| Operating Temperature [Min] | -40 ¯C |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Package / Case | Exposed Pad, 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 8-HTSOP-J |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 18 V |
| Voltage - Input (Min) [Min] | 4.5 V |
| Voltage - Output (Max) [Max] | 7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.27 | |
| 10 | $ 0.79 | |||
| 25 | $ 0.67 | |||
| 100 | $ 0.53 | |||
| 250 | $ 0.46 | |||
| 500 | $ 0.41 | |||
| 1000 | $ 0.38 | |||
| Digi-Reel® | 1 | $ 1.27 | ||
| 10 | $ 0.79 | |||
| 25 | $ 0.67 | |||
| 100 | $ 0.53 | |||
| 250 | $ 0.46 | |||
| 500 | $ 0.41 | |||
| 1000 | $ 0.38 | |||
| N/A | 6681 | $ 0.67 | ||
| Tape & Reel (TR) | 2500 | $ 0.34 | ||
| 5000 | $ 0.32 | |||
| 7500 | $ 0.31 | |||
| 12500 | $ 0.29 | |||
| 17500 | $ 0.29 | |||
| 25000 | $ 0.28 | |||
| Newark | Each | 1 | $ 1.33 | |
| 10 | $ 0.69 | |||
| 100 | $ 0.53 | |||
| 500 | $ 0.50 | |||
| 1000 | $ 0.47 | |||
| 2500 | $ 0.45 | |||
| 10000 | $ 0.44 | |||
Description
General part information
BD9D321 Series
BD9D321EFJ is a synchronous buck switching regulator with built-in low on-resistance power MOSFETs. It is capable of providing current of up to 3A. The SLLM™ control provides excellent efficiency characteristics in light-load conditions which make the product appropriate for equipment and devices that demand minimal standby power consumption. External phase compensation circuit is not necessary for it is a constant on-time control DC/DC converter with high speed response.
Documents
Technical documentation and resources
