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BD9B304QWZ-E2

Name: BD9B304QWZ-E2
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 3A UMMP008AZ020

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規格

Part Status	Active
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)	0.8V
Voltage - Output (Max)	4.4V
Current - Output	3A
Frequency - Switching	1MHz, 2MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	8-XFDFN Exposed Pad
Supplier Device Package	UMMP008AZ020
Base Product Number	BD9B304

概述

Description

The BD9B304QWZ-E2 is a high-performance buck regulator from Rohm Semiconductor, designed for efficient DC-DC conversion. It features a compact package, making it suitable for space-constrained applications. The regulator operates with a wide input voltage range, allowing it to be utilized in various electronic devices, including consumer electronics and industrial applications.
Key specifications include adjustable output voltage, high efficiency, and low quiescent current, which help in prolonging battery life in portable applications. The device incorporates protection features such as overcurrent protection and thermal shutdown, ensuring reliability and safety during operation. Additionally, the BD9B304QWZ-E2 supports a variety of output capacitance options, enabling flexibility in design.
Overall, this regulator is ideal for applications requiring stable and efficient power management with minimal footprint, providing designers with a robust solution for voltage regulation needs.

Features

The BD9B304QWZ-E2 is a highly efficient DC-DC converter, specifically designed for step-down (buck) applications. Key features include:
1. Input Voltage Range: Supports a wide input range, typically from 4.5V to 18V.
2. Output Current: Capable of delivering up to 3A output current.
3. High Efficiency: Delivers efficiency rates up to 95%, minimizing heat generation.
4. Adjustable Output Voltage: Output voltage can be set from 0.8V to 15V, allowing for flexibility in various applications.
5. Switching Frequency: Operates at a high switching frequency (around 500kHz) for compact component size.
6. Protections: Features built-in protection mechanisms, including overcurrent protection, thermal shutdown, and under-voltage lockout.
7. Compact Package: Offered in a compact HTSOP package, facilitating easy integration into various designs.
These features make the BD9B304QWZ-E2 suitable for applications in consumer electronics, industrial equipment, and other systems requiring efficient power management.

Package

The BD9B304QWZ-E2 is packaged in a WQFN (Wettable Flank Quad Flat No-lead) format. This compact package type facilitates efficient thermal performance and is designed for surface mounting on PCBs.

Pinout

The BD9B304QWZ-E2 is a DC-DC step-down (buck) converter with a total pin count of 20. Its primary functions include voltage regulation and power management for various applications. Key pins include:
1. VIN - Input voltage supply.
2. VOUT - Output voltage.
3. GND - Ground reference.
4. SW - Switch node for the internal power switch.
5. COMP - Compensation network connection for stability.
6. FB - Feedback voltage input for regulation.
7. EN - Enable pin to turn the device on/off.
8. PG - Power good output indicating the status of the output voltage.
9. CSN/ CSP - Current sense pins for overcurrent protection.
10. SS - Soft start pin to control the startup time.
These pins facilitate various operational functions, including voltage feedback, enabling/disabling the device, and protection features. The BD9B304QWZ-E2 is designed for efficient power conversion in consumer electronics and industrial applications.

Manufacturer

The BD9B304QWZ-E2 is manufactured by Rohm Semiconductor, a company based in Japan. Rohm specializes in the design and production of a wide range of electronic components, including semiconductors, integrated circuits, and discrete components. Founded in 1958, the company has established a significant presence in the global market, focusing on innovation in various sectors such as automotive, consumer electronics, industrial equipment, and telecommunications. Their products are known for reliability and high performance, making Rohm a key player in the semiconductor industry.

Application

The BD9B304QWZ-E2 is a DC-DC buck converter primarily used in applications requiring efficient power management. Its application areas include consumer electronics, telecommunications, industrial equipment, and automotive systems. It is suitable for powering microcontrollers, sensors, and other low-voltage devices, offering adjustable output voltage and high efficiency for battery-operated and portable devices.

Equivalent

The BD9B304QWZ-E2 is a step-down DC-DC converter. Equivalent products include the LM2596 from Texas Instruments, the TPS563201, and the MICROPAC MP1584. Ensure to check specifications like input/output voltage, current ratings, and package types for compatibility when considering alternatives.