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Product Detailed Parameters
- Description：IC REG BUCK ADJ 4A 32VQFN
- Series：H³®
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR)
- 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)：0.7V
- Voltage - Output (Max)：5V
- Current - Output：4A
- Frequency - Switching：200kHz ~ 1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-10°C ~ 100°C (TA)
- Mounting Type：Surface Mount
- Package / Case：32-VFQFN Exposed Pad
- Supplier Device Package：VQFN032V5050
- Grade：-
- Qualification：-
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Overview
The BD95514MUV-E2 is a synchronous buck converter with an integrated linear regulator, manufactured by ROHM Semiconductor. It operates within an input voltage range of 4.5 V to 28 V and delivers up to 4 A output current. The adjustable output voltage spans from 700 mV to 5 V. Key electrical parameters include a static current of 10 uA and a switchable switching frequency between 200 kHz and 1 MHz. The device supports a shutdown function and functions reliably across an operating temperature range of -10°C to +100°C.
Feature Summary
- Integrates H3 Reg control mode for rapid transient response characteristics.
- Features SLLM technology to optimize efficiency under light load conditions.
- Includes built-in protection mechanisms such as thermal shutdown and output short-circuit protection with timer latch.
Applications
- Power supply units for personal computers
- Industrial equipment requiring wide input voltage ranges
- Embedded systems utilizing the integrated linear regulator
Procurement Notes
Verify the specific suffix E2 against the manufacturer's datasheet to confirm compliance with RoHS directives and material declarations. Ensure the ordering quantity aligns with the standard factory packaging specifications provided in the official documentation. Cross-reference the part number with authorized distributors to confirm current availability status and lead times before finalizing procurement plans.
Selection Notes
Select this component when a wide input voltage range up to 28 V is required alongside high current capability. The integrated linear regulator simplifies designs needing auxiliary power rails. Consider the VQFNV5050-EP-32 package for thermal management requirements. Evaluate the need for the specific switching frequency range and light load modes relative to system efficiency targets.
Part Context
This part belongs to the BD95514MUV series of power management ICs designed for high-efficiency DC/DC conversion. It is categorized under Switching Voltage Regulators within the PMIC product line. The device integrates N-MOSFET switches to reduce external component count and board space compared to non-integrated solutions.
Replacement Considerations
Consult the official datasheet for direct pin-to-pin compatible alternatives within the same series. Verify that any substitute maintains the 4.5 V to 28 V input range and 4 A output capacity. Confirm package compatibility with the VQFNV5050-EP-32 footprint if physical replacement is necessary.
