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Product Detailed Parameters
- Description：PWM TYPES DCDC CONVERTER IC
- Series：BD28C5xFJ-LB
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Isolation：Isolated
- Internal Switch(s)：Yes
- Voltage - Breakdown：-
- Topology：Flyback
- Voltage - Start Up：-
- Voltage - Supply (Vcc/Vdd)：6.9V ~ 28V
- Duty Cycle：48%
- Frequency - Switching：23kHz, 26.5kHz
- Fault Protection：Current Limiting, UVLO
- Control Features：Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOP-J
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The BD28C54FJ-LBE2 is a PWM type DC/DC converter IC manufactured by ROHM Semiconductor. It operates within an input voltage range of 6.9 V to 28 V and provides a fixed output voltage of 28 V. The device supports a maximum output current of 20 mA and functions with a switching frequency of 53 kHz. It features a maximum duty cycle of 100% and consumes a typical operating supply current of 1.1 mA. The component is housed in an SOP-J8 package and is rated for operation between -40°C and +125°C.
Feature Summary
- PWM control topology for efficient power conversion
- Fixed 28 V output capability
- Wide operating temperature range suitable for industrial environments
Applications
- AC/DC converter systems
- Power management circuits
- Industrial equipment power supplies
Procurement Notes
Verify the specific suffix LBE2 against the manufacturer's latest datasheet to confirm tape and reel specifications and pinout compatibility. Ensure the sourcing channel provides original manufacturer documentation to validate the part number authenticity and RoHS compliance status prior to integration into production designs.
Selection Notes
Select this component when a fixed 28 V output is required from a 6.9 V to 28 V input range. The 53 kHz switching frequency and 20 mA output current define its capacity for low-power isolated or non-isolated applications. Consider the SOP-J8 package constraints and the -40°C to +125°C thermal rating for environmental suitability.
Part Context
This part belongs to the BD28C5xFJ series of PWM type DC/DC converter ICs from ROHM Semiconductor. It shares the SOP-J8 package form factor with related models like the BD28C52FJ-LBE2 but differs in specific electrical parameters such as output voltage configuration and internal circuit design tailored for 28 V generation.
Replacement Considerations
The BD28C52FJ-LBE2 is a related model within the same series. Verify if the alternative part meets the specific 28 V output requirement, as variations may exist in internal regulation or pin definitions despite shared packaging.
