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Product Detailed Parameters
- Description：IC REG BUCK ADJ/5V DL 8HTSOP-J
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable (Fixed)
- Number of Outputs：2
- Voltage - Input (Min)：8V
- Voltage - Input (Max)：26V
- Voltage - Output (Min/Fixed)：0.8V (5V)
- Voltage - Output (Max)：4V
- Current - Output：1.7A, 500mA
- Frequency - Switching：300kHz ~ 600kHz, 1.5MHz ~ 2.5MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-HTSOP-J
- Grade：-
- Qualification：-
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Overview
The BD93291EFJ-E2 is a dual synchronous buck converter from ROHM Semiconductor, housed in an 8-pin HTSOP-J package. It features two independent output channels with adjustable voltage ranges of 0.8V to 4V and a fixed 5V option. The device supports maximum output currents of 1.7A and 500mA respectively. Operating within an input voltage range of 8V to 26V, it offers flexible switching frequencies selectable between 300kHz–600kHz and 1.5MHz–2.5MHz. The IC maintains a low quiescent current of 5uA and operates reliably across temperatures from -40°C to +85°C.
Feature Summary
- Dual-channel architecture providing independent power rails for multi-voltage system requirements
- Integrated synchronous rectification for enhanced conversion efficiency and reduced external component count
- Flexible switching frequency selection to optimize trade-offs between size and performance
- Low standby current consumption supporting energy-efficient operation in battery-powered applications
Applications
- Portable electronic devices requiring multiple regulated voltage domains
- Industrial control systems utilizing compact power management solutions
- Embedded computing platforms needing efficient step-down regulation
- Consumer electronics with strict space and power constraints
Procurement Notes
Verify the specific suffix E2 against the official datasheet to confirm compliance with environmental standards and material specifications. Ensure the ordering code matches the required packaging format, such as cut tape or reel, for your assembly process. Cross-reference the manufacturer's latest documentation to confirm active status and availability before finalizing procurement plans.
Selection Notes
Select this component when a dual-output synchronous buck topology is required within a small surface-mount footprint. Evaluate the 8V to 26V input range against your system's supply voltage. Consider the available switching frequency options to determine if they meet your electromagnetic interference and inductor size constraints. Confirm that the 1.7A and 500mA output capabilities align with your load requirements.
Part Context
This part belongs to the BD93291 series of dual synchronous buck converters manufactured by ROHM Semiconductor. It is categorized under PMIC switching regulators designed for high-efficiency power management. The HTSOP-J8 package provides a compact solution suitable for modern electronic designs where board space is limited.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Consult the manufacturer's official documentation for potential obsolescence notices or recommended upgrades.
