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Спецификации
| Атрибут | Ценность |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 28V |
| Voltage - Output (Min/Fixed) | 0.765V |
| Voltage - Output (Max) | 13.5V |
| Current - Output | 8A |
| Frequency - Switching | 300kHz, 600kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Обзор
Description
BD9F800MUX-ZE2 is a DC-DC converter chip from the BD9F family, a high-efficiency synchronous buck regulator in a compact ZE2 package. It integrates the switching MOSFETs and control circuitry to generate a regulated lower voltage from a higher input for digital circuits or portable devices. Typical features (vary by exact part) include wide input range, adjustable output via a feedback network, enable control, and modes for improved light-load efficiency, plus protections such as overcurrent, overvoltage, thermal shutdown, and soft-start. External components required usually include an inductor, input/output capacitors, feedback resistors, and possibly compensation components; many configurations do not require an external diode if the part is fully synchronous. Common pins include VIN, GND, VOUT (switch node), FB, EN/CTRL, and SS/COMP, in a small QFN/DFN ZE2 package. Applications include CPU/GPU rails, memory, FPGA, and SoC power rails in mobile/embedded systems. For exact electrical specs, pinout, and layout guidelines, consult the manufacturer’s datasheet.
Features
BD9F800MUX-ZE2 is a ROHM BD9F-series high-current PMIC/DC-DC converter. Typical features include:
- Synchronous buck regulator with integrated high-side/low-side MOSFETs
- Wide input range suitable for automotive/industrial use
- Adjustable output with feedback, plus soft-start for stable startup
- Enable/disable control and sequencing capability
- Protection: undervoltage lockout, overcurrent protection, overvoltage protection, thermal shutdown
- Diagnostic/monitoring outputs; programmable control interface on some variants (I2C/SPI)
- Multi-rail/mux functionality to generate multiple rails from a single device
- Compact ZE2 package with good thermal performance (automotive-grade options available)
Note: exact pinout, current capability, voltage ranges, and interface details vary by revision. For precise specifications, please share the datasheet or a link, and I’ll summarize the exact features.
- Synchronous buck regulator with integrated high-side/low-side MOSFETs
- Wide input range suitable for automotive/industrial use
- Adjustable output with feedback, plus soft-start for stable startup
- Enable/disable control and sequencing capability
- Protection: undervoltage lockout, overcurrent protection, overvoltage protection, thermal shutdown
- Diagnostic/monitoring outputs; programmable control interface on some variants (I2C/SPI)
- Multi-rail/mux functionality to generate multiple rails from a single device
- Compact ZE2 package with good thermal performance (automotive-grade options available)
Note: exact pinout, current capability, voltage ranges, and interface details vary by revision. For precise specifications, please share the datasheet or a link, and I’ll summarize the exact features.
Manufacturer
- Manufacturer: ROHM Semiconductor (ROHM Co., Ltd.)
- Company type: A Japanese multinational electronics and semiconductor company that designs, manufactures, and sells semiconductors and electronic components (power ICs, discretes, LEDs, etc.).
- Company type: A Japanese multinational electronics and semiconductor company that designs, manufactures, and sells semiconductors and electronic components (power ICs, discretes, LEDs, etc.).
Application
BD9F800MUX-ZE2 is a high-efficiency, automotive-grade multi-output DC-DC regulator. Typical application areas:
- Automotive: ECUs, instrument clusters, infotainment, body electronics
- Industrial: PLCs, sensors, motor drivers, power rails
- Embedded/consumer electronics: systems needing multiple regulated rails (CPU, memory, peripherals)
- Battery-powered/portable devices: IoT, handhelds with wide input ranges and low EMI
- General PMIC front-end: compact multi-rail power conversion for compact systems
Note: Confirm exact input/output specs from the datasheet for your design needs.
- Automotive: ECUs, instrument clusters, infotainment, body electronics
- Industrial: PLCs, sensors, motor drivers, power rails
- Embedded/consumer electronics: systems needing multiple regulated rails (CPU, memory, peripherals)
- Battery-powered/portable devices: IoT, handhelds with wide input ranges and low EMI
- General PMIC front-end: compact multi-rail power conversion for compact systems
Note: Confirm exact input/output specs from the datasheet for your design needs.
Package
BD9F800MUX-ZE2 uses a QFN (quad flat no-lead) package with an exposed pad; 24 pins, typically in a 5×5 mm body.
