Datasheet > BD9A400MUV

BD9A400MUV

更新时间： 2023-09-03 20:25:18

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
35页	2746K
描述
BD9A400MUV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。最大可输出4A的电流。凭借SLLM™控制，实现轻负载状态的良好效率特性，适用于要降低待机功耗的设备。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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BD9A400MUV 数据手册

BD9A400MUV

Absolute Maximum Ratings (Ta = 25°C)

Parameter

Symbol

Rating

Unit

Supply Voltage

V_PVIN,V_AVIN

V_EN

-0.3 to +7

-0.3 to +14

-0.3 to +7

-0.3 to V_PVIN+ 0.3

2.66

EN Voltage

MODE Voltage

V_MODE

V_PGD

V_BOOT

⊿V_BOOT

V_FB

PGD Voltage

Voltage from GND to BOOT

Voltage from SW to BOOT

FB Voltage

ITH Voltage

V_ITH

SW Voltage

V_SW

Allowable Power Dissipation^{(Note 1)}

Operating Temperature Range

Storage Temperature Range

°C

Topr

-40 to 85

Tstg

-55 to 150

(Note 1) When mounted on a 70mm x 70mm x 1.6mm 4-layer glass epoxy board (copper foil area: 70 mm x 70 mm)

Derate by 21.3mW when operating above 25C.

Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit

between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over

the absolute maximum ratings.

Recommended Operating Conditions (Ta= -40°C to +85°C)

Parameter

Symbol

Min

Typ

Max

Unit

Supply Voltage

Output Current^{(Note 2)}

V_PVIN,V_AVIN

I_OUT

2.7

5.5

Output Voltage Range

V_RANGE

0.8

V_PVIN× 0.7

(Note 2) Pd,ASO should not be exceeded.

www.rohm.com

TSZ02201-0J3J0AJ00730-1-2

20.Jul.2017 Rev.002

5/32

TSZ22111 • 15 • 001

1 2 3 456 7 8...35

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