WL2820X [WILLSEMI]

Low noise, High PSRR, High speed, CMOS LDO;


型号：	WL2820X
厂家：	WILLSEMI
描述：	Low noise, High PSRR, High speed, CMOS LDO
文件：	总14页 (文件大小：3256K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

WL2820X

Http://www.sh-willsemi.com

Low noise, High PSRR, High speed, CMOS

LDO

Descriptions

The WL2820X series is a high accuracy, low noise,

high speed, high PSRR, 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.

FBP1x1-4L

The WL2820X 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 WL2820X regulators are available in standard

FBP1x1-4L Package. Standard products are Pb-free

and Halogen-free.

Pin Configuration (Top View)

Features



Input Voltage Range

Output Voltage Range

Output current

:1.4V~5.5V

: 0.9V~3.3V

: 300mA

Quiescent current

Shut-down current

Dropout voltage

: 50μA Typ.

J: Package Code

* : Voltage Code

: < 1μA

: 140mV @ I_OUT=0.3A

Y : Year Code

PSRR

Low Output Voltage Noise

Output Voltage Tolerance :±2% @ V_OUT>2V

Recommend capacitor : 1μF

Thermal-Overload and Short-Circuit Protection

: 78dB @ 1kHz, V_OUT=1.8V

W: Week Code

For detail marking information, please see page 14.

Marking

:13×V_OUTμV_RMS

Applications

Order Information

For detail order information, please see page 14.



MP3/MP4 Players

Cellphones, radiophone, digital cameras

Bluetooth, wireless handsets

Others portable electronics device

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

Typical Application

Pin Description

FBP1x1-4L

PIN Symbol Description

V_OUT

GND

Output

Ground

Enable (Active high)

Input

V_IN

GND level, this pin must

connect to GND.

Block Diagram

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

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

MSL

260

-55 ~ 150

150

Level-3

7500

HBM

ESD Ratings

300

Recommend Operating Ratings

Parameter

Value

Unit

^oC

Operating Supply voltage

Operating Temperature Range

Thermal Resistance, R_θJA(FBP1x1-4L)

1.4～5.5

-40～85

250

^oC/W

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

Electronics Characteristics

(Ta=25^oC, V_IN=V_OUT+1V, C_IN=C_OUT=1μF, I_OUT=1mA，unless otherwise noted)

Parameter

Symbol

Condition

Min.

0.98×

V_OUT

1.4

Typ.

Max.

1.02×

V_OUT

5.5

Unit

Output Voltage

V_OUT

Input Voltage

V_IN

I_LIM

Current Limit

V_EN=V_IN

300

V_OUT=3.3V, I_OUT=300mA

V_OUT=3V, I_OUT=300mA

V_OUT=2.8V, I_OUT=300mA

V_OUT=2.5V, I_OUT=300mA

V_OUT=1.6V, I_OUT=300mA

V_OUT=1V, I_OUT=300mA

V_IN=V_OUT+0.5V~5.5V

I_OUT=1~300mA

118

122

130

140

205

370

185

192

204

220

320

555

Dropout Voltage

V_DROP

Line Regulation

Load Regulation

Quiescent Current

Short Current

△V_LINE

△V_Load

I_Q

μA

V_OUT=2.8V, I_OUT=0

I_SHORT

I_SHDN

V_EN=V_IN,V_OUTShort to GND

V_EN=0V

120

Shut-down Current

1.0

f=100Hz

f=1kHz

V_IN=(V_OUT+1V)_DC

0.5V_P-P

Power Supply Rejection Rate

PSRR

f=10kHz

f=100kHz

f=1MHz

_OUT=10mA，

V_OSET=1.8V

EN logic high voltage

EN logic low voltage

EN Input Current

V_ENH

V_ENL

I_EN

V_IN=5.5V, I_OUT=1mA

V_IN=5.5V, V_OUT=0V

V_EN= 0 to 5.5V

0.4

120

13×

V_OUT

160

Output Noise Voltage

e_NO

10Hz to 100KHz, C_OUT=1μF

μV_RMS

Thermal shutdown threshold

Thermal shutdown hysteresis

Auto-discharge Nch Tr, ON

Resistance

T_SD

℃

△T_SD

R_LOW

120

V_IN=4V, V_CE=0V, V_OUT=2.8V

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

Typical characteristics (Ta=25^oC, V_IN=V_OUT+1V, I_OUT=1mA，C_IN=C_OUT=1μF, unless otherwise noted)

(1) EN is driven by square pulse, the duty cycle is less than 20%

V_OUT=1.2V

V_OUT=1.8V

V_OUT=2.8V

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

V_OUT=1.8V

VIN=EN=2.8V

IO=0mA

-40

-20

100

120

140

Temperature(C^o)

Quiescent Current vs. Temperature

V_OUT=1.8V

V_OUT=2.8V

V_OUT=3.0V

V_OUT=3.3V

160

140

120

100

160

140

120

100

V_OUT*0.98

250

V_OUT*0.98

250

100

150

200

300

100

150

200

300

Output Current (mA)

Dropout Voltage vs.Output Current

Output Current (mA)

Dropout Voltage vs.Output Current

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

Vout=1.2V⁽¹⁾

Vout=2.8V⁽¹⁾

V_OUT=1.05V

Vout=1.8V⁽¹⁾

100

V_IN=3VDC+0.5V_PP

V_OUT=1.05V C_OUT=1uF

I_OUT=10mA

V_IN=3VDC+0.5V_PP

V_OUT=1.05V C_OUT=10uF

I_OUT=10mA

I_OUT=20mA

100

1000

10000

100000

1000000

100

1000

10000

100000

1000000

Frequency (Hz)

PSRR vs. Frequency

Frequency (Hz)

PSRR vs. Frequency

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

V_OUT=1.8V

V_OUT=2.8V

100

V_IN=3.8VDC+0.5V_PP

V_OUT=2.8V C_OUT=10uF

I_OUT=10mA

V_IN=3.8VDC+0.5V_PP

V_OUT=2.8V C_OUT=1uF

I_OUT=10mA

I_OUT=20mA

100

1000

10000

100000

1000000

100

1000

10000

100000

1000000

Frequency (Hz)

PSRR vs. Frequency

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

1.Start up (Soft Start from EN)

V_OUT=1.2V

V_IN=2.2V,C_OUT=1μF,I_OUT=10mA

V_IN=2.2V,C_OUT=1μF,I_OUT=250mA

V_IN=2.8V,C_OUT=1μF,I_OUT=300mA

V_IN=3.8V,C_OUT=1μF,I_OUT=300mA

V_OUT=1.8V

V_IN=2.8V,C_OUT=1μF,I_OUT=10mA

V_OUT=2.8V

V_IN=3.8V,C_OUT=1μF,I_OUT=10mA

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

2.Shutdown (Shutdown from EN)

V_OUT=1.2V

V_IN=2.2V,C_OUT=1μF,I_OUT=10mA

V_IN=2.2V,C_OUT=1μF,I_OUT=300mA

V_IN=2.8V,C_OUT=1μF,I_OUT=300mA

V_IN=3.8V,C_OUT=1μF,I_OUT=300mA

V_OUT=1.8V

V_IN=2.8V,C_OUT=1μF,I_OUT=10mA

V_OUT=2.8V

V_IN=3.8V,C_OUT=1μF,I_OUT=10mA

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

3.Load & Line Transient

Load step

Line Step

V_OUT=1.2V

V_IN=2.2V,C_OUT=1μF,I_OUT=1mA-200mA in 1μs

V_IN=2.2V-3.2V in 20μs,C_OUT=1μF,I_OUT=1mA

V_IN=2.8V-3.8V in 20μs,C_OUT=1μF,I_OUT=1mA

V_IN=3.8V-4.8V in 20μs,C_OUT=1μF,I_OUT=1mA

V_OUT=1.8V

V_IN=2.8V,C_OUT=1μF,I_OUT=1mA-300mA in 1μs

V_OUT=2.8V

V_IN=3.8V,C_OUT=1μF,I_OUT=1mA-300mA in 1μs

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

PACKAGE OUTLINE DIMENSIONS

FBP1x1-4L

TOP VIEW

BOTTOM VIEW

SIDE VIEW

Dimensions in Millimeters

Symbol

Min.

0.335

0.950

0.370

Typ.

Max.

0.405

1.050

0.470

1.000

0.170 Min.

0.160

0.010

0.600

0.185

0.210

0.260

0.090

0.700

0.255

0.650

0.030 Ref.

0.185

0.255

Recommend PCB Layout (Unit: mm)

0.180

Notes:

This recommended land pattern is for reference

purposes only. Please consult your manufacturing

group to ensure your PCB design guidelines are met.

0.360

0.410

1.130

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

WL2820X

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.

Apr, 2018 – Rev 1.9

WL2820X

ORDER INFORMATION

Vout

(V)

Operating

Ordering No.

WL2820X10-4/TR

WL2820X105-4/TR

WL2820X12-4/TR

WL2820X18-4/TR

WL2820X25-4/TR

WL2820X28-4/TR

WL2820X30-4/TR

WL2820X33-4/TR

Package

Marking

Shipping

Temperature

Tape and Reel,

10000

1.0

1.05

1.2

1.8

2.5

2.8

3.0

3.3

FBP1x1-4L

-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

Will Semiconductor Ltd.

Apr, 2018 – Rev 1.9

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