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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A 8HTSOP-J
- 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)：1V
- Voltage - Output (Max)：2.5V
- Current - Output：3A
- Frequency - Switching：1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-25°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-HTSOP-J
- Grade：-
- Qualification：-
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Overview
The BD8963EFJ-E2 is a synchronous buck converter from ROHM Semiconductor, housed in an HTSOP-J8 package. It operates with an input voltage range of 2.7 V to 5.5 V and delivers up to 2 A output current. The device supports adjustable output voltages between 1 V and 2.5 V at a fixed switching frequency of 1 MHz. It functions within a temperature range of -25 °C to +85 °C and includes shutdown capability for power management.
Feature Summary
- Integrates high-side P-channel and low-side N-channel MOSFETs for synchronous rectification
- Utilizes constant on-time control architecture for rapid transient response
- Incorporates thermal shutdown and under-voltage lockout protection mechanisms
Applications
- Portable electronic devices requiring efficient step-down conversion
- Battery-powered systems needing low standby power consumption
- Embedded applications utilizing single-cell lithium-ion power sources
Procurement Notes
Verify the specific suffix E2 against official ROHM documentation to confirm environmental compliance and pin compatibility. Confirm availability status as this component may be subject to lifecycle changes or discontinuation notices. Ensure the ordering part number matches the exact package variant required for your PCB layout.
Selection Notes
Select this component when designing circuits powered by single-cell lithium batteries or 3.3 V/5 V rails requiring precise voltage regulation. The integrated MOSFETs simplify design by reducing external component count. Consider the 1 MHz switching frequency for balancing efficiency and passive component size requirements in space-constrained layouts.
Part Context
This device belongs to the BD8963 series of integrated MOSFET DC-DC converters. These regulators are designed for applications demanding high efficiency and compact footprints. The series utilizes constant on-time control to maintain stability across varying load conditions while minimizing electromagnetic interference through optimized switching frequencies.
Replacement Considerations
Consult official ROHM substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully before replacing components in existing designs.
