WL2831D11-4/TR [WILLSEMI]

500mA ,Ultra Low Drop-Out, CMOS LDO With BIAS Supply;


型号：	WL2831D11-4/TR
厂家：	WILLSEMI
描述：	500mA ,Ultra Low Drop-Out, CMOS LDO With BIAS Supply
文件：	总11页 (文件大小：1118K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

WL2831

Http://www.sh-willsemi.com

500mA ,Ultra Low Drop-Out, CMOS LDO

With BIAS Supply

Descriptions

The WL2831 is a high accuracy, low noise, high speed,

low dropout CMOS Linear regulator with high ripple

rejection.It is equipped with NMOS pass transistor and

a separate bias supply voltage(V_BIAS). The devices

offer a new level of cost effective performance in

cellular phones, laptop and other portable devices.

DFN1212-4L

The WL2831 are available in fixed output voltages

between 0.8V and 3.3V, and capable of driving up to

500mA. Other features include over temperature

protection and over current protection.

The WL2831 regulators are available in DFN1212-4L

Package. Standard products are Pb-free and

Halogen-free.

Pin Configuration (Top View)

Features



Input voltage

Bias voltage

Output range

Output current

PSRR

: 0.8V~5.5V

: 2.4V~5.5V

: 0.8V~3.3V

X: Voltage Code

* : Month Code

: 500mA Typ.

: 80dB @ 1kHz

: 20uVrms(10Hz to 100kHz)

For detail marking information, please see page 9.

Low Noise

Dropout voltage : 150mV @ I_OUT=500mA

Quiescent current : 60μA Typ.

Shut-down current : < 1.0μA

Marking

Recommend capacitor : 2.2uF

ORDER INFORMATION

For detail order information, please see page 9.

Applications



MP3/MP4 Players

Cellphones, radiophone, digital cameras

Bluetooth, wireless handsets

Others portable electronics device

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

Typical Application

Pin Description

DFN1212-4L

PIN Symbol Description

VOUT

BIAS

Output

Bias voltage supply for internal

control circuits

VIN

Enable (Active high)

Input Voltage Supply pin

Ground

GND

Block Diagram

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

Absolute Maximum Ratings

Parameter

Value

Unit

V_INRange

-0.3～6.0

-0.3～V_IN

600

V_BIASRange

V_ENRange

V_OUTRange

I_OUT

^oC

Lead Temperature Range

Storage Temperature Range

Operating Junction Temperature Range

260

-55 ~ 150

150

HBM

6000

ESD Ratings

300

Recommend Operating Ratings

Parameter

Value

Unit

^oC

Operating Supply voltage

Operating Temperature Range

Thermal Resistance, R_θJA(DFN1212-4L)

2.4～5.5

-40～85

170

^oC/W

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

Electronics Characteristics

1.Ta=25^oC, V_IN=V_OUT+0.5V, C_IN=1.0uF, C_BIAS=0.1uF, C_OUT=2.2uF, unless otherwise noted

Parameter

Symbol

Condition

Min.

Typ. Max.

Unit

V_OUT

Vdrop

2.4

5.5

V_IN

Operating VIN Voltage Range

_OUT≦1.0V

Operating BIAS Voltage

Range

5.5

V_BIAS

V_OUT>1.0V

V_OUT+1.4V

V_OUT

V_OUT*

Output Voltage accuracy

V_OUT

I_OUT=1mA

V_OUT

0.99

600

1.01

Current Limit

I_LIM

V_OUT=90%V_OUT(NOM)

μA

Output Short Current

V_INLine Regulation

V_BIASLine Regulation

Load Regulation

I_SC

190

0.1

△V_LINE

△V_Load

I_Q

V_IN=V_OUT+0.5V~5.5V, I_OUT=1mA

V_BIAS=2.7~5.5V, I_OUT=1mA

I_OUT=1~500mA

110

1.0

Quiescent Current

Shut-down Current

V_BIAS=2.7V, V_OUT=1.1V,I_OUT=0

V_EN=0V

I_SHDN

V_INto V_OUT,F=1kHz ,I_OUT=10mA.

V_IN>V_OUT+0.5V

Power Supply Rejection Rate

V_BIASto V_OUT,F=1kHz ,I_OUT=10mA.

V_IN>V_OUT+0.5V

EN logic high voltage

EN logic low voltage

EN Input Current

V_ENH

V_ENL

I_EN

V_IN=5.5V, I_OUT=1mA

1.2

V_IN=5.5V, V_OUT=0V

0.4

1.0

V_EN= 0 to 5.5V

μA

V_IN=V_OUT+0.5V, V_OUT(NOM)=1V,

I_OUT=10mA,f=10Hz to 100KHz

Output Noise Voltage

e_NO

μV_rms

^oC

Thermal shutdown threshold

Thermal shutdown hysteresis

Auto-discharge Nch Tr.

ON Resistance

T_SD

160

△ T_SD

R_LOW

V_BIAS=3.5V，V_CE=0V

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

Dropout Voltage

1.Ta=25^oC,V_IN=V_OUT+0.5V C_IN=1.0uF, C_BIAS=0.1uF, C_OUT=2.2uF,unless otherwise note

2.The specifications with * are guaranteed by engineering at -40℃≦Ta≦85℃

Parameter

Symbol

Condition

I_OUT=300mA

Typ

I_OUT=500mA

Typ Max

Unit

Output Voltages

V_BIASinput voltages

Min

－

Max

150*

160*

170*

180*

190*

200*

Min

0.8V≦V_OUT<1.0V

1.0V≦V_OUT<1.2V

1.2V≦V_OUT<1.4V

1.4V≦V_OUT<1.6V

1.6V≦V_OUT<1.8V

1.8V≦V_OUT<2.1V

2.1V≦V_OUT<2.5V

2.5V≦V_OUT<3.3V

3.3V

100

－

150

240*

250*

260*

270*

280*

290*

300*

110

160

3.3V

120

170

3.3V

125

180

VOUT+1.7V

130

190

135

195

135

195

135

200

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

Typical characteristics

1.Ta=25^oC,V_IN=V_OUT+0.5V C_IN=1.0uF, C_BIAS=0.1uF, C_OUT=2.2uF,unless otherwise noted

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

Typical characteristics

1.Ta=25^oC,V_BIAS=5.0V V_{IN DC}=V_OUT+1.0V V_{IN ac}=500mV-V_p-pVC_IN=none, C_BIAS=0.1uF, C_OUT=2.2uF

Start-up From EN

1.Ta=25^oC, V_IN= V_OUT+0.5V C_IN=1.0uF, C_BIAS=0.1uF, C_OUT=2.2uF,unless otherwise noted

VOUT=1.1V EN ON

VOUT=3.3V EN ON

VOUT=1.1V EN OFF

VOUT=3.3V EN OFF

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

Load Transient Response

1.Ta=25^oC, V_IN= V_OUT+0.5V C_IN=1.0uF, C_BIAS=0.1uF,C_OUT=2.2uF,unless otherwise noted)

2.Tr=Tf=1us

VOUT=1.1V 1mA→300mA→1mA

VOUT=3.3V 1mA→300mA→1mA

VOUT=1.1V 1mA→500mA→1mA

VOUT=3.3V 1mA→500mA→1mA

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

ORDER INFORMATION

Vout

Ordering No.

(V)

Operating

Package

Marking

Shipping

Temperature

Tape and Reel,

3,000

WL2831D09-4/TR

WL2831D10-4/TR

WL2831D105-4/TR

WL2831D11-4/TR

WL2831D12-4/TR

WL2831D33-4/TR

0.9

1.0

1.05

1.1

1.2

3.3

DFN1212-4L

-40~+85°C

Tape and Reel,

3,000

Tape and Reel,

3,000

Tape and Reel,

3,000

Tape and Reel,

3,000

Tape and Reel,

3,000

Marking:

X: Voltage Code

* : Month Code

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

PACKAGE OUTLINE DIMENSIONS

DFN1212-4L

Dimensions in Millimeters

Symbol

Min.

0.34

0.00

Typ.

0.37

0.02

0.10 Ref.

0.30

1.20

0.63

0.80

0.90

0.20

0.18

Max.

0.40

0.05

0.25

1.15

0.58

0.75

0.80

0.15

0.13

0.15

0.00

0.35

1.25

0.68

0.85

1.00

0.25

0.23

0.05

0.10

Recommend land pattern (Unit: mm)

1.50

0.20

0.45

Notes:

This recommended land pattern is for reference purposes

only. Please consult your manufacturing group to ensure

your PCB design guidelines are met.

0.27

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

WL2831

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

8mm

Pin1 Pin1 Quadrant

Will Semiconductor Ltd.

Nov, 2018 – Rev 1.1

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