WL2820D38-4/TR [WILLSEMI]

Low noise, High PSRR, High speed, CMOS;


型号：	WL2820D38-4/TR
厂家：	WILLSEMI
描述：	Low noise, High PSRR, High speed, CMOS
文件：	总10页 (文件大小：2139K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

WL2820D

Http://www.sh-willsemi.com

Low noise, High PSRR, High speed, CMOS

LDO

Descriptions

The WL2820D series is a high accuracy, low noise,

high speed, low dropout CMOS Linear regulator with

high ripple rejection. The devices offer a new level of

cost effective performance in cellular phones, laptop

and notebook computers, and other portable devices.

DFN1X1-4L

The WL2820D has the fold-back maximum output

current which depends on the output voltage. So the

current limit functions both as a short circuit protection

and as an output current limiter.

The WL2820D regulators are available in standard

DFN1x1-4L Package. Standard products are Pb-free

and Halogen-free.

Pin Configuration (Top View)

Features



Input voltage

Output range

Output current

PSRR

: 2.2V~5.5V

: 1.0V~3.8V

: 300mA

: 70dB @ 217Hz

E: Package Code

* : Voltage Code

Dropout voltage : 250mV @ I_OUT=300mA

Quiescent current : 42μA Typ.

Shut-down current : < 1μA

Y : Year Code

W: Week Code

For detail marking information, please see page 8.

Marking

Discharge Resistance : 100Ω

Recommend capacitor : 1uF

Applications



MP3/MP4 Players

Order Information

Cellphones, radiophone, digital cameras

Bluetooth, wireless handsets

For detail order information, please see page 8.

Others portable electronics device

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

Typical Application

Pin Description

DFN1X1-4L

PIN Symbol Description

VOUT

GND

Output

Ground

Enable (Active high)

Input

VIN

GND level, this pin must

connect to GND.

Block Diagram

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

Absolute Maximum Ratings

Parameter

Value

400

Unit

Power Dissipation, P_D@T_A=25℃

V_INRange

-0.3～6.5

-0.3～V_IN

400

V_ENRange

V_OUTRange

I_OUT

^oC

Lead Temperature Range

Storage Temperature Range

Operating Junction Temperature Range

260

-55 ~ 150

150

HBM

8000

ESD Ratings

400

Recommend Operating Ratings

Parameter

Value

Unit

^oC

Operating Supply voltage

Operating Temperature Range

Thermal Resistance, R_θJA

2.2～5.5

-40～85

250

^oC/W

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

Electronics Characteristics (Ta=25^oC, V_IN=V_OUT+1V, C_IN=C_OUT=1uF, unless otherwise noted)

Parameter

Symbol

Condition

Min.

0.97

V_OUT

0.98

V_OUT

300

Typ.

Max.

1.03

V_OUT

1.02

V_OUT

Unit

V_OUT

V_OUT≤1.5V, V_IN=2.7V, I_OUT=1mA

Output Voltage

V_OUT

V_OUT>1.5V, I_OUT=1mA

Current Limit

I_LIM

V_EN=V_IN

V_OUT=3.3V, I_OUT=300mA

V_OUT=3.0V, I_OUT=300mA

V_OUT=2.8V, I_OUT=300mA

V_OUT=2.5V, I_OUT=300mA

V_OUT=1.8V, I_OUT=300mA

220

330

360

375

420

600

240

250

Dropout Voltage

V_DROP

280

400

V_OUT≤1.5V, I_OUT=300mA

Vin-min=2.2V

Line Regulation

Load Regulation

Quiescent Current

Short Current

△V_LINE

△V_Load

I_Q

V_IN=2.7~5.5V, I_OUT=1mA

V_OUT=2.8V , I_OUT=1~300mA

V_OUT=2.8V, I_OUT=0

0.01

0.1

%/V

μA

I_SHORT

I_SHDN

V_EN=V_IN,V_OUTShort to GND with 1Ω

V_EN=0V

μA

Shut-down Current

1.0

V_IN=(V_OUT+1V)_DC+0.5V_P-P

F=217Hz ,Iout=10mA

V_IN=(V_OUT+1V)_DC+0.5V_P-P

F=10KHz, Iout=10mA

V_IN=5.5V, I_OUT=1mA

Power Supply Rejection Rate

PSRR

EN logic high voltage

EN logic low voltage

EN Input Current

V_ENH

V_ENL

I_EN

1.2

V_IN=5.5V, V_OUT=0V

0.4

1.0

V_EN= 0 to 5.5V

μA

Output Noise Voltage

Thermal shutdown threshold

Thermal shutdown hysteresis

Auto-discharge Nch Tr.

ON Resistance

e_NO

10Hz to 100KHz, C_OUT=1μF

165

μV_RMS

^oC

T_SD

△ T_SD

R_LOW

V_IN=4.0V，V_CE=0V

100

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

Typical characteristics (Ta=25^oC, V_IN=3.8V, V_OUT= 2.8V C_IN=C_OUT=1uF, unless otherwise noted)

Quiescent current vs. Supply voltage

Output voltage vs. Supply voltage

Output voltage vs. Output current

Quiescent current vs. Supply voltage

Output voltage vs. Supply voltage

Output voltage vs. Output current

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

Output Voltage vs. Temperature

Dropout Voltage vs. Output Current

PSRR

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

Soft Start form EN

EN Shutdown

Load Step

Line Step

EN Shutdown

Load Step

Line Step

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

ORDER INFORMATION

Vout

(V)

Operating

Ordering No.

WL2820D105-4/TR

WL2820D11-4/TR

WL2820D12-4/TR

WL2820D15-4/TR

WL2820D18-4/TR

WL2820D21-4/TR

WL2820D22-4/TR

WL2820D25-4/TR

WL2820D27-4/TR

WL2820D28-4/TR

WL2820D285-4/TR

WL2820D30-4/TR

WL2820D33-4/TR

WL2820D38-4/TR

Package

Marking

Shipping

Temperature

Tape and Reel,

10000

1.05

1.1

1.2

1.5

1.8

2.1

2.2

2.5

2.7

2.8

2.85

3.0

3.3

3.8

DFN1x1-4L

-40~+85°C

Tape and Reel,

10000

-40~+85°C

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Tape and Reel,

10000

Marking:

E* = Device Code

= Year

= Week

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

PACKAGE OUTLINE DIMENSIONS

DFN1x1-4L

Dimensions In Millimeters

Symbol

Min.

Typ.

0.37

0.02

0.10 REF

0.22

1.00

0.48

0.25

0.65

Max.

0.40

0.34

0.00

0.105

0.17

0.95

0.43

0.20

0.60

0.15

0.27

1.05

0.53

0.30

0.70

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

WL2820D

TAPE AND REEL INFORMATION

Reel Dimensions

Tape Dimensions

Quadrant Assignments For PIN1 Orientation In Tape

Q1 Q2

User Direction of Feed

Reel Dimension

Overall width of the carrier tape

Pitch between successive cavity centers

7inch

8mm

2mm

13inch

12mm

4mm

16mm

8mm

Pin1 Pin1 Quadrant

Will Semiconductor Ltd.

Oct, 2018 – Rev 1.6

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