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Product Detailed Parameters
- Description：IC REG BST SEPIC ADJ 1.4A 8MSOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.1V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：2.1V
- Voltage - Output (Max)：15V (Switch)
- Current - Output：1.4A (Switch)
- Frequency - Switching：600kHz, 1.2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-VSSOP, 8-MSOP (0.110", 2.80mm Width)
- Supplier Device Package：8-MSOP
- Grade：-
- Qualification：-
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Overview
The BD8158FVM-TR is a single-channel boost switching regulator IC manufactured by Rohm Semiconductor, housed in an 8-pin MSOP package. It operates with an input voltage range of 2.1 V to 5.5 V and provides an adjustable output voltage up to 14 V or 15 V depending on the specific datasheet reference. The device delivers a maximum output current of 1.4 A and features a selectable switching frequency of 600 kHz or 1.2 MHz. Key electrical parameters include a typical quiescent current of 10 µA and a feedback voltage accuracy of ±1%. It supports a wide operating temperature range from -40°C to +125°C.
Feature Summary
- Integrates a low-voltage power MOSFET switch within a single-chip design for high efficiency.
- Utilizes a current mode PWM control system for stable regulation.
- Includes built-in protection circuits for under-voltage lockout, overcurrent, and thermal shutdown.
- Offers selectable switching frequencies to optimize external component size and performance.
Applications
- TFT-LCD panels for satellite navigation systems
- Laptop PC TFT-LCD panels
- General step-up conversion for portable electronic devices
Procurement Notes
Verify the exact output voltage rating (14 V vs 15 V) against the specific manufacturer datasheet revision, as sources vary. Confirm the package type is MSOP-8 and ensure the supply chain documentation matches the BD8158FVM-TR part number. Check for RoHS compliance status in the latest official documentation before finalizing procurement specifications.
Selection Notes
Select this component when a boost topology is required for inputs between 2.1 V and 5.5 V. It is suitable for applications needing up to 1.4 A output current with high accuracy feedback. Consider the integrated FET and protection features to simplify circuit design. Ensure the operating temperature range meets the environmental requirements of the target application.
Part Context
This part belongs to the BD8158 series of high-efficiency step-up switching regulators from Rohm Semiconductor. It is designed to replace discrete solutions by integrating the power switch and control logic. The series targets portable electronics requiring low power consumption and compact form factors.
Replacement Considerations
The BD8152FVM is a related variant in the same family but requires a minimum input voltage of 2.5 V, whereas the BD8158FVM supports down to 2.1 V. Verify input voltage requirements when substituting.
