BD9161FVM-LBTR

$1.67

Description：IC REG BUCK ADJ 600MA 8MSOP
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:4f6caf6ee6f5 Category: Voltage Regulators - DC DC Switching Regulators Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 600MA 8MSOP
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)：2.5V
Voltage - Input (Max)：4.5V
Voltage - Output (Min/Fixed)：1V
Voltage - Output (Max)：3.3V
Current - Output：600mA
Frequency - Switching：1MHz
Synchronous Rectifier：Yes
Operating Temperature：-25°C ~ 85°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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BD9161FVM-LBTR

Overview

The BD9161FVM-LBTR is a synchronous buck switching regulator manufactured by ROHM Semiconductor. It operates with an input voltage range of 4V to 5.5V and provides a fixed output voltage of 3.3V. The device delivers a maximum output current of 800mA through a single channel. It features a switching frequency of 1MHz and utilizes MSOP-8 packaging for surface mount installation. The component functions within a temperature range of -25°C to +85°C.

Feature Summary

Integrates N-channel and P-channel power MOSFETs with the controller in a single package
Employs current-mode PWM control for fast transient response during load changes
Achieves high efficiency across full load ranges using synchronous rectification and Simple Light Load Mode (SLLM)
Includes built-in protection mechanisms such as thermal shutdown, UVLO, and short-circuit protection

Applications

Industrial applications requiring long life cycle products
Portable devices powered by 5V or 3.3V lines
Low voltage generation from standard power supplies
Embedded systems needing compact power solutions

Procurement Notes

Verify the specific suffix LBTR against the official datasheet to confirm reel quantity and tape specifications. Ensure the MSOP-8 footprint matches the design layout. Check RoHS compliance status and lead time requirements directly with authorized distributors. Confirm that the operating temperature range meets the environmental constraints of the target application before finalizing procurement.

Selection Notes

Select this component when a fixed 3.3V output is required from a 5V source with up to 800mA load capability. Consider the MSOP-8 package size for space-constrained designs. Evaluate the need for integrated FETs versus external solutions based on thermal performance requirements. Verify compatibility with existing PCB layouts and ensure adequate heat dissipation paths are designed into the system.

Part Context

This part belongs to the BD91xx series of switching regulators designed for industrial and portable applications. The series focuses on high efficiency and compact integration. The BD9161 variant specifically targets 3.3V output applications. It shares common control architecture with other members of the family but differs in output voltage settings and current ratings.