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

Electrical Characteristics (Unless otherwise specified Ta = 25°C, VAVIN = VPVIN = 5V, VEN = 5V)

Parameter

Symbol

Min

Typ

Max

Unit

Conditions

AVIN PIN

Standby Supply Current

Operating Supply Current

I_STB

I_CC

V_UVLO1

V_UVLO2

µA

EN= GND

I_OUT= 0mA

Non-switching

350

500

UVLO Detection Voltage

UVLO Release Voltage

ENABLE

2.35

2.45

2.55

2.7

V_INfalling

V_INrising

2.425

EN Input High Level Voltage

EN Input Low Level Voltage

EN Input Current

V_ENH

V_ENL

I_EN

2.0

AGND

V_AVIN

0.8

µA

EN= 5V

MODE

MODE Threshold Voltage

MODE Input Current

Reference Voltage, Error Amplifier

FB Terminal Voltage

V_MODEH

I_MODE

0.2

0.4

0.8

µA

MODE= 5V

V_FB

I_FB

0.792

0.8

0.808

FB Input Current

µA

FB= 0.8V

ITH Sink Current

I_THSI

I_THSO

T_SS

I_SS

1.0

1.8

FB= 0.9V

ITH Source Current

FB= 0.7V

Soft Start Time

0.5

0.9

2.0

3.6

With internal constant

Soft Start Current

SWITCHING FREQUENCY

Switching Frequency

POWER GOOD

F_OSC

800

1000

1200

kHz

Falling (Fault) Voltage

Rising (Good) Voltage

Rising (Fault) Voltage

Falling (Good) Voltage

PGD Output Leakage Current

Power Good ON Resistance

Power Good Low Level Voltage

SWITCH MOSFET

V_PGDFF

V_PGDRG

V_PGDRF

V_PGDFG

I_LKPGD

R_PGD

107

104

µA

OUTPUT voltage falling

OUTPUT voltage rising

OUTPUT voltage falling

PGD= 5V

110

107

113

110

100

0.1

200

0.2

P_GDVL

I_PGD= 1mA

High Side FET ON Resistance

Low Side FET ON Resistance

High Side Output Leakage Current

Low Side Output Leakage Current

SCP

R_ONH

R_ONL

R_ILH

R_ILL

120

mΩ

µA

BOOT – SW= 5V

Non-switching

µA

Short Circuit Protection Detection

Voltage

V_SCP

0.28

0.4

0.52

www.rohm.com

TSZ02201-0J3J0AJ00730-1-2

20.Jul.2017 Rev.002

6/32

TSZ22111 • 15 • 001

1...3 4 567 8 9...35

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