Datasheet > BD3540NUV

BD3540NUV

更新时间： 2022-12-14 14:51:19

品牌	Logo	应用领域
罗姆 - ROHM		PC
页数	文件大小	规格书
17页	635K
描述
Nch FET Ultra LDOs for Desktop PCs Chipsets with Power Good

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BD3540NUV 数据手册

Technical Note

BD3540NUV, BD3541NUV

●Electrical Characteristics

(Unless otherwise specified, Ta=25℃, VCC=5V, Ven=3V, VIN=1.7V, R1=3.9KΩ, R2=3.3KΩ)

Limit

Parameter

Symbol

Unit

Condition

Min.

Typ.

0.7

Max.

1.0

Bias Current

μA

ICC

IST

VCC Shutdown Mode Current

Output Voltage

Ven=0V

1.200

VOUT

Output Voltage Temperature

Coefficient

0.01

%/℃

Tcvo

Feedback Voltage 1

Feedback Voltage 2

0.643

0.637

0.650

0.657

0.663

VFB1

VFB2

Tj=-10 to 100℃

(BD3540NUV Io=0A to 0.5A)

(BD3541NUV Io=0A to 1.0A)

VCC=3.0V to 5.5V

Load Regulation

0.5

Reg.L

Line Regulation 1

Line Regulation 2

Standby Discharge Current

[ENABLE]

0.1

0.5

%/V

Reg.l1

Reg.l2

Iden

VIN=1.5V to 3.3V

Ven=0V, Vo=1V

Enable Pin

Input Voltage High

Enhi

Enable PinInput Voltage Low

Enable Input Bias Current

[NRCS]

VCC×0.15

Enlow

Ien

μA

Ven=3V

NRCS Charge Current

NRCS Standby Voltage

[UVLO]

Inrcs

μA

Vnrcs=0.5V

VSTB

mV Ven=0V

VCC Undervoltage Lockout

Threshold Voltage

VCC Undervoltage Lockout

Hysteresis Voltage

VccUVLO

Vcchys

2.3

2.5

2.7

Vcc:Sweep-up

100

150

mV Vcc:Sweep-down

[PGOOD]

Low-side Threshold Voltage

High-side Threshold Voltage

PGDLY charge current

Ron

V_THPGL

I_PGDLY

R_PG

VO×0.87 VO×0.9 VO×0.93

VO×1.07 VO×1.1 VO×1.13

1.4

2.0

2.6

μA

Ω

150

[AMP]

Io=0.5A, VIN=1.2V,

BD3540NUV

Minimum

dVo

dvo

200

300

Ta=-10 to 100℃

Io=1.0A, VIN=1.2V,

dropout voltage

BD3541NUV

Ta=-10 to 100℃

www.rohm.com

2009.04 - Rev.B

3/16

1 234 5 6 7...17

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