Datasheet > BD9E300EFJ-LB(H2)

BD9E300EFJ-LB(H2)

更新时间： 2023-09-03 20:24:58

品牌	Logo	应用领域
罗姆 - ROHM		开关转换器稳压器
页数	文件大小	规格书
33页	1655K
描述
本产品是面向工业设备市场的产品，保证可长期稳定供货。BD9E300EFJ-LB是内置低导通电阻的功率MOSFET的同步整流降压型开关稳压器。输入电压范围大(7V～36V)，可生成5.0V等低电压。振荡频率1MHz的高速产品，适用于小型电感。是电流模式控制DC/DC转换器，具有高速瞬态响应性能，可轻松设定相位补偿。

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BD9E300EFJ-LB(H2) 数据手册

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BD9E300EFJ-LB BD9E300UEFJ-LB

Pin Configuration

(TOP VIEW)

E-Pad

BOOT

VIN

PGND

COMP

AGND

Figure 2. Pin assignment

Pin Description(s)

Pin No

Pin Name

Description

Connect a bootstrap capacitor of 0.1µF between this terminal and SW terminal.

The voltage of this capacitor is the gate drive voltage of the high-side MOSFET.

BOOT

Power supply terminal for the switching regulator and control circuit.

Connecting a 10µF ceramic capacitor is recommended.

VIN

Turning this terminal signal low-level (0.8V or lower) forces the device to enter the shut

down mode. Turning this terminal signal high-level (2.5V or higher) enables the device.

This terminal must be terminated.

AGND

Ground terminal for the control circuit.

Inverting input node for the gm error amplifier.

See page 22 on how to calculate the resistance of the output voltage setting.

Input terminal for the gm error amplifier output and the output switch current comparator.

Connect a frequency phase compensation component to this terminal.

See page 23 on how to calculate the resistance and capacitance for phase

compensation.

COMP

PGND

Ground terminal for the output stage of the switching regulator.

Switch node. This terminal is connected to the source of the high-side MOSFET and

drain of the low-side MOSFET. Connect a bootstrap capacitor of 0.1µF between this

terminal and BOOT terminal. In addition, connect an inductor considering the direct

current superimposition characteristic.

Exposed pad. Connecting this to the internal PCB ground plane using multiple vias

provides excellent heat dissipation characteristics.

E-Pad

www.rohm.co

TSZ02201-0J3J0AJ00220-1-2

2/30

01.Nov.2022 Rev.004

TSZ22111•15•001

123 4 5 6 7...33

中文翻译

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与BD9E300EFJ-LB(H2)相关器件

型号	品牌	获取价格	描述	数据表
BD9E300EFJ-LBH2	ROHM	获取价格	7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter
BD9E300UEFJ-LB(E2) (新产品)	ROHM	获取价格	This product guarantees long life cycle in Industrial market. BD9E300UEFJ-LB(E2) is a sync
BD9E300UEFJ-LB(H2) (新产品)	ROHM	获取价格	This product guarantees long life cycle in Industrial market. BD9E300UEFJ-LB(H2) is a sync
BD9E301EFJ-LB	ROHM	获取价格	7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter
BD9E301EFJ-LB(E2)	ROHM	获取价格	本产品是面向工业设备市场的产品，保证可长期稳定供货。BD9E301EFJ-LB是内置低导通
BD9E301EFJ-LB(H2)	ROHM	获取价格	本产品是面向工业设备市场的产品，保证可长期稳定供货。BD9E301EFJ-LB是内置低导通
BD9E301EFJ-LBH2	ROHM	获取价格	7.0V to 36V Input, 2.5A Integrated MOSFET Single Synchronous Buck DC/DC Converter
BD9E301UEFJ-LB(E2) (新产品)	ROHM	获取价格	This product guarantees long life cycle in In
BD9E301UEFJ-LB(H2) (新产品)	ROHM	获取价格	This product guarantees long life cycle in Industrial market. BD9E301UEFJ-LB is a synchron
BD9E302EFJ	ROHM	获取价格	Integrated MOSFET Single Synchronous Buck DC/DC Converter

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