BD9P255EFV-CE2

BD9P255EFV-CE2 is a Rohm synchronous buck DC-DC regulator. It provides efficient step-down conversion from a higher input voltage to a stable, lower output rail for digital ICs and embedded systems. The CE2 variant is a small, surface-mount package suited for automotive and industrial apps.
Key points:
- Integrated control logic with high-side and low-side MOSFETs (synchronous rectification)
- Wide input range, adjustable output via external feedback network
- Enable input, soft-start, current limit, thermal protection, overvoltage protection
- Requires external inductor, input/output caps, and feedback resistors
- Commonly used to generate core rails for MCUs, sensors, and other components in automotive/industrial equipment
For exact specs (input range, max output current, switching frequency, Vout options, protection thresholds), consult the BD9P255EFV-CE2 datasheet.

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Here are the typical features you can expect for BD9P255EFV-CE2 (BD9P series motor driver):
- 3-phase bridge with integrated high/low side MOSFETs for BLDC motors
- Sensorless operation with back-EMF detection and/or Hall-sensor input support
- PWM speed control interface (and/or analog torque control)
- Programmable current limit / torque control
- Protective functions: overcurrent/short-circuit, overvoltage, undervoltage, overtemperature
- Thermal shutdown with automatic retry
- Diagnostic and fault/status outputs for microcontroller monitoring
- Compact CE2 package (RoHS-compliant); suitable for automotive/industrial use
Note: exact pinout, voltage ranges, and feature details vary by revision. Please refer to the official datasheet for precise specifications.

Pin count: 16 pins (QFN16).
Function: Dual synchronous buck DC-DC regulator (two-channel regulator with integrated high-side/low-side MOSFETs) used to generate CPU/core and other rails.

The BD9P255EFV-CE2 is manufactured by ROHM Semiconductor (ROHM Co., Ltd.). ROHM is a Japanese multinational company that designs and manufactures semiconductors and electronic components, including ICs, power management ICs, diodes, transistors, LEDs, and related devices for automotive, consumer, and industrial markets.

BD9P255EFV-CE2 is a high‑efficiency buck regulator with integrated FETs, used as a point‑of‑load (POL) power solution. Common application areas:
- CPU/GPU core voltage rails in notebooks, desktops, and servers
- Memory and chipset rails on motherboards
- Power rails for FPGAs/ASICs and other high‑current loads
- PMIC/POF stages in consumer electronics (phones, tablets, cameras)
- Telecom and networking equipment DC‑DC conversion
- Industrial control and automotive electronics requiring compact, efficient regulators

BD9P255EFV-CE2 uses ROHM’s FV package, i.e., a QFN (Quad Flat No-Lead) package with an exposed pad.