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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A 20VQFN
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：2.5V
- Current - Output：3A
- Frequency - Switching：1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：VQFN020V4040
- Grade：-
- Qualification：-
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Overview
The BD8962MUV-E2 is a single synchronous step-down DC-DC converter manufactured by ROHM Semiconductor. It operates with an input voltage range of 2.7 V to 5.5 V and provides an adjustable output voltage from 800 mV to 2.5 V. The device delivers a maximum output current of 3 A with a fixed switching frequency of 1 MHz. It features a low quiescent current of 10 µA and functions within an operating temperature range of -40°C to +105°C. The component is housed in a VQFN-V4040-EP-20 surface-mount package.
Feature Summary
- Integrates a synchronous buck topology for efficient step-down conversion
- Supports wide input voltage ranges suitable for single-cell lithium battery applications
- Includes built-in protection circuits against overcurrent and thermal conditions
Applications
- Portable electronic devices requiring efficient power management
- Battery-powered equipment utilizing single-cell lithium-ion sources
- Embedded systems needing stable low-voltage regulation
Procurement Notes
Verify the NRND status before procurement, as this indicates the component is not recommended for new designs. Confirm package integrity upon receipt, as the VQFN-V4040-EP-20 requires precise soldering techniques. Ensure compatibility with existing supply chain constraints due to potential end-of-life implications.
Selection Notes
Select this component when a single-channel buck converter with high efficiency and compact footprint is required. The 1 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the 3 A output current meets the load requirements without exceeding thermal limits in the intended enclosure.
Part Context
This part belongs to the BD8962MUV series of switching regulators designed for portable applications. It shares architectural similarities with other ROHM buck converters but is distinguished by its specific 3 A current rating and 2.5 V maximum output limit. The E2 suffix typically denotes environmental compliance variations within the product line.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation. Due to the NRND status, alternative sourcing should focus on verifying availability through authorized distributors or evaluating newer generations from the same manufacturer family.
