Deep-Dive with AI
Search across all available documentation for this part.
Technical Specifications
Parameters and characteristics for this part
| Specification | BD9859EFJ-E2 |
|---|---|
| Current - Output | 3 A |
| Frequency - Switching | 750 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 | 1.81 mOhm |
| Package / Case | 0.154 in |
| Package / Case | 8-SOIC |
| Package / Case | 3.9 mm |
| Supplier Device Package | 8-HTSOP-J |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 14 V |
| Voltage - Input (Min) [Min] | 5 V |
| Voltage - Output (Min/Fixed) | 1 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 | $ 2.11 | |
| 10 | $ 1.35 | |||
| 25 | $ 1.15 | |||
| 100 | $ 0.92 | |||
| 250 | $ 0.81 | |||
| 500 | $ 0.74 | |||
| 1000 | $ 0.69 | |||
| Digi-Reel® | 1 | $ 2.11 | ||
| 10 | $ 1.35 | |||
| 25 | $ 1.15 | |||
| 100 | $ 0.92 | |||
| 250 | $ 0.81 | |||
| 500 | $ 0.74 | |||
| 1000 | $ 0.69 | |||
| Tape & Reel (TR) | 2500 | $ 0.54 | ||
Description
General part information
BD9859EFJ Series
BD9859EFJ mainly used as secondary side Power supply, for example from fixed Power supply of 9V, 12V etc., Step-down Output of 1.2V/1.8V/3.3V/5V, etc., can be produced. This IC has external Coil/Capacitor down-sizing through 750kHz High Frequency operation, inside Nch-FET SW for 15V "withstand-pressure" commutation and also, High Speed Load Response through Current Mode Control is a simple external setting Phase compensation System, through a wide range external constant, a compact Power supply can be produced easily.
Documents
Technical documentation and resources