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Product Detailed Parameters
- Description：IC REG BUCK 3.3V 2A SON008V5060
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：4.5V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Current - Output：2A
- Frequency - Switching：1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-25°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-VDFN Exposed Pad
- Supplier Device Package：SON008V5060
- Grade：-
- Qualification：-
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Overview
The BD9111NV-E2 is a high-efficiency step-down switching regulator manufactured by ROHM Semiconductor. It operates with an input voltage range of 4.5 V to 5.5 V and provides a fixed output voltage of 3.3 V at a maximum output current of 2 A. The device utilizes a synchronous buck topology with an integrated controller and power FETs. Key electrical parameters include a switching frequency of 1 MHz, a typical quiescent current of 10 uA, and an operating supply current of 250 uA. It supports a shutdown function and functions within a temperature range of -25 C to +105 C.
Feature Summary
- Integrates synchronous rectification circuitry for enhanced efficiency across load ranges.
- Employs pulse skipping mode technology to optimize performance during light load conditions.
- Utilizes current mode control architecture to ensure rapid transient response under sudden load variations.
Applications
- Powering low-voltage logic circuits from standard 5 V or 3.3 V rails
- Point-of-load regulation in embedded systems requiring compact form factors
- Battery-powered portable devices needing efficient voltage conversion
Procurement Notes
Verify the specific suffix E2 against the official ROHM datasheet to confirm package dimensions and RoHS compliance status. Confirm that the SON-8 package variant matches the required footprint for PCB layout. Ensure the ordering quantity aligns with the manufacturer's standard taping specifications before finalizing procurement orders.
Selection Notes
Select this component when a fixed 3.3 V output is required from a narrow 4.5 V to 5.5 V input window. The integrated synchronous design reduces external component count compared to asynchronous alternatives. Consider the 1 MHz switching frequency for balancing electromagnetic interference and passive component size requirements.
Part Context
This part belongs to the BD9111NV series of switching regulators designed for applications requiring high efficiency in small packages. It represents a specialized solution for converting 5 V sources down to lower voltages using ROHM's proprietary control techniques. The series focuses on minimizing board space while maintaining stable regulation under varying thermal conditions.
Replacement Considerations
Consult the official ROHM product lifecycle documents for confirmed substitute part numbers. Verify pin compatibility and thermal characteristics if replacing with similar buck converters from other manufacturers.
