Instructions for OmniVision models including: WL2803E Ultra Low Dropout, WL2803E, Ultra Low Dropout, Low Dropout, Dropout

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WL2803E


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OV-WL2803E
WL2803E
Ultra low dropout, 500mA, CMOS LDO

Descriptions
The WL2803E series are ultra low dropout, Low quiescent current, high PSRR CMOS LDO. The dropout voltage is 130mV (Typ.) at 500mA load current.

Using CMOS construction, the quiescent current consumed by the WL2803E is typically 150uA over the entire input voltage range, making it attractive for consumer, networking applications that demand high output current. The WL2803E series are available in wide output voltage range version from 1.2V to 3.3V with 0.1V step.

The WL2803E series offer thermal shutdown (OTP) and current limit functions, to assure the stability of chip and power system at wrong condition, and it uses trimming technique to guarantee output voltage accuracy within ±2%.

The WL2803E regulators are available in SOT-23-5L packages. Standard products are Pb-free and Halogen-free.

Features

 Input voltage

: 2.5V~5.5V

 Output voltage : 1.2V~3.3V

 Output current : 500mA

 PSRR

: 65dB @ 1KHz

 Dropout voltage : 130mV @ IOUT=0.5A

 Output noise

: 100uV

 Quiescent current : 150A Typ.

Applications
 LCD TV  STB  Computer, Graphic card  Network communication equipments  Others portable electronics devices

Http://www.ovt.com
SOT-23-5L
Pin Configuration (Top View)
WS = Device code ** = Voltage code (33: 3.3V) YY = Year code WW = Week code
Marking
Order Information
For detail information, Please refer to page 9.

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

1
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

WL2803E

Typical Application

VIN 4.7uF
ON

15 2 34

VOUT 4.7uF

Pin Description

PIN Symbol Description

1

VIN Input

2

GND Ground

3

EN Enable, Active High

OFF

4

NC Not connect

When the output is less than 2V, it is recommended that the Cout is more than 10uF.

5 VOUT Output

Block Diagram

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

2
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

WL2803E

Absolute Maximum Ratings
Parameter Input voltage range Output voltage range Power dissipation *1 *3 Power dissipation *2 *3 Thermal resistance *1 Thermal resistance *2 Junction temperature Lead temperature(10s) Storage temperature
ESD Ratings

Symbol VIN VOUT
PD
RJA
TJ TL Tstg HBM MM

Value -0.36.5 -0.3VIN 0.7 0.5 180 250 150 260 -55 ~ 150 ±8000 ±400

Unit V V W W
oC/W oC/W
oC oC oC V V

Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
*1: Surface mounted on FR-4 Board using 1 square inch pad size, dual side, 1oz copper *2: Surface mounted on FR-4 board using minimum pad size, 1oz copper *3: Power dissipation is calculate by PD = (VIN-VOUT) x IOUT

Recommend Operating Ratings
Parameter Operating Supply voltage Operating Temperature Range

Symbol VIN Topr

Value

Unit

2.55.5

V

-4085

oC

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

3
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

WL2803E

Electronics Characteristics (Ta=25oC, VIN=VOUT+1V, CIN=COUT=4.7uF, unless otherwise noted)

Parameter
Output Voltage
Dropout Voltage Current Limit Line Regulation Load Regulation Quiescent Current Shut-down Current
Power Supply Ripple Rejection
Output noise voltage EN logic high voltage EN logic low voltage Thermal shutdown threshold Thermal shutdown hysteresis

Symbol
VOUT
VDROP ILIM
VLINE VLoad
IQ ISHDN
PSRR
eNO VENH VENL TSD  TSD

Condition
VOUT <1.5V, VIN=2.5V, IOUT=1mA
VOUT1.5V, IOUT=1mA
VOUT=VOUT*0.98, IOUT=500mA VIN=5V VOUT=3.3V, VIN=4.3~6.0V, IOUT=1mA VOUT=3.3V , IOUT=1~500mA VOUT=3.3V, IOUT=0 VEN = 0V VIN=(VOUT+1V)DC+0.2VP-P F=1KHz ,IOUT=10mA VIN=(VOUT+1V)DC+0.2VP-P F=10KHz, IOUT=10mA 10Hz to 100KHz, COUT=4.7F VIN=5.5V, IOUT=1mA VIN=5.5V, IOUT=0mA

Min. VOUT
30mV VOUT
* 0.98 0.65
1.2

Typ. VOUT
VOUT 130

Max. VOUT
+ 30mV VOUT
* 1.02 230

Unit
V
mV A

5

10

mV

10

30

mV

150

200

uA

0.1

1.0

uA

65 dB
58

100

µVP-P

V

0.4

V

165

oC

30

oC

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

4
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

WL2803E

Quiescent Current: IQ (uA)

Typical characteristics (Ta=25oC, VIN=VOUT+1V, CIN=COUT=4.7uF, unless otherwise noted)

200 190 180 170 160 150 140 130 120 110 100
3.0

VOUT =3.3V IOUT =0mA
3.5 4.0 4.5 5.0 5.5 6.0 Input Voltage: VIN (V)

Quiescent current vs. Supply voltage

3.8

3.7

IOUT=600mA

3.6

3.5

3.4

3.3

3.2

3.1

3.0

2.9

2.8 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 Input Voltage: VIN (V)

Output voltage vs. Supply voltage

Output Voltage: VOUT (V)

Quiescent Current: IQ (uA)

300

250

200

150

100

50 0 -50

VOUT =3.3V IOUT =0mA
-25 0 25 50 75 100 125 150 Ambient Temperature: TA (oC)

Quiescent current vs. Ambient temperature 3.8

3.7

3.6

3.5

3.4

3.3

3.2

3.1

3.0

2.9 2.8
-50

IOUT=1mA -25 0 25 50 75 100 125 150
Ambient Temperature: TA (oC)

Output voltage vs. Ambient temperature

Output Voltage: VOUT (V)

Output Voltage: VOUT (V)

3.8

3.7

TA = -40oC

3.6

3.5

3.4

VIN=5.5V

3.3

VIN=4.2V

VIN=3.8V

3.2

3.1

3.0

2.9

2.8 0

100 200 300 400 500 600

Output Current: IOUT (mA) Output voltage vs. Output current

Output Voltage: VOUT (V)

3.8

3.7

TA = 25oC

3.6

3.5 3.4 3.3

VIN=5.5V

VIN=4.2V

VIN=3.8V

3.2

3.1

3.0

2.9

2.8 0

100 200 300 400 500 600

Output Current: IOUT (mA)

Output voltage vs. Output current

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

5
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

Output Voltage: VOUT (V)

3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8
0

TA = 85oC

VIN=5.5V

VIN=4.2V

VIN=3.8V

100 200 300 400 500 600 Output Current: IOUT (mA)

Output voltage vs. Output current

WL2803E
Dropout voltage vs. Output current

PSRR

PSRR

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

6
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

WL2803E

Startup with EN

Shutdown with EN

Line Regulation

Load Regulation

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

7
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

E A1
E1 A2
A L

Package outline dimensions
D b
e e1
TOP VIEW

SOT-23-5L
() ()

WL2803E
0.20
c
SIDE VIEW

SIDE VIEW

Symbol
A A1 A2 b c D E E1 e e1 L 

Min. -
0.00 0.90 0.30 0.10 2.72 2.60 1.40
0.30 0°

Dimensions in Millimeters Typ. 1.10 0.40 2.92 2.80 1.60
0.95 BSC 1.90 BSC
0.45 -

Max. 1.45 0.15 1.30 0.50 0.21 3.12 3.00 1.80
0.60 8°

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

8
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1

TAPE AND REEL INFORMATION
Reel Dimensions
Reel Dimensions

WL2803E

RD
W

P1

Tape Dimensions

Quadrant Assignments For PIN1 Orientation In Tape

Q1 Q2 Q3 Q4

Q1 Q2 Q3 Q4

User Direction of Feed

RD W P1 Pin1

Reel Dimension Overall width of the carrier tape Pitch between successive cavity centers Pin1 Quadrant

7inch 1 8mm
2mm Q1

13inch 12mm 4mm Q2

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

9
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

16mm

8mm

Q3

Q4

Jul. 2019 ­ Rev 2.1

WL2803E

ORDER INFORMATION

Ordering No.
WL2803E12-5/TR WL2803E18-5/TR WL2803E25-5/TR WL2803E28-5/TR WL2803E30-5/TR WL2803E33-5/TR

VOUT (V)
1.2 1.8 2.5 2.8 3.0 3.3

Package

Marking

SOT-23-5L SOT-23-5L SOT-23-5L SOT-23-5L SOT-23-5L SOT-23-5L

WS12/YYWW WS18/YYWW WS25/YYWW WS28/YYWW WS30/YYWW WS33/YYWW

Operating Temperature -40 ~ +85°C -40 ~ +85°C -40 ~ +85°C -40 ~ +85°C -40 ~ +85°C -40 ~ +85°C

Shipping
3000/Tape and Reel 3000/Tape and Reel 3000/Tape and Reel 3000/Tape and Reel 3000/Tape and Reel 3000/Tape and Reel

4275 Burton Drive Santa Clara, CA 95054 USA

Tel: + 1 408 567 3000 Fax: + 1 408 567 3001 www.ovt.com

10
OMNIVISION reserves the right to make changes to their products or to discontinue any product or service without further notice. OMNIVISION and the OMNIVISION logo are trademarks or registered trademarks of OmniVision Technologies, Inc. All other trademarks are the property of their respective owners.

Jul. 2019 ­ Rev 2.1



References