0.3μA IQ ,High PSRR,500mA Low-Dropout LDO
WL9005
Features
• Low Power Consumption: 0.3uA (Typ)
• Maximum Output Current: 500mA
• Small Dropout Voltage
•
•
•
•
•
•
•
100mV@100mA (Vout=3.3V)
• PSRR=70dB@1KHz
• Input Voltage Range: 2.0V~7.0V
• Output Voltage Range: 0.8V~3.6V
(customized on command in 0.05V steps)
Integrated Short-Circuit Protection
Good Transient Response
Over-Temperature Protection
Support Fixed Output Voltage
Output Current Limit
Stable with Ceramic Capacitor
Available Package
SOT23-3 \ SOT23-5 \ SOT89-3 \ DFN1x1-4L
• High Accurate: ±1.5%
• RoHS Compliant and Lead (Pb) Free
Application
• Battery-powered equipment
• Reference voltage sources
• Mobile phones
• Cameras, video cameras
• Portable games
• Portable games
Description
The WL9005 series are highly precise, low noise, positive voltage LDO regulators manufactured
using CMOS processes. The series achieves high ripple rejection and low dropout and consists of a
standard voltage source, an error correction, current limiter and a phase compensation circuit plus a
driver transistor. Output voltage is selectable in 0.05V increments within a range of 0.8V ~ 3.6V. The
series is also compatible with low ESR ceramic capacitors which give added output stability.It
provides up to 500mA of output current in miniaturized packaging. The features of low quiescent
current as low as 0.3μA and almost zero disable current is ideal for powering the battery equipment
to a longer service life. The other features include current limit function, Integrated Short-Circuit
Protection ,over temperature protection and output discharge function.
Application Circuits
VIN
VIN
VOUT
VOUT
COUT
10μF
CIN
10μF
ON/
OFF
EN
NC
GND
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0.3μA IQ ,High PSRR,500mA Low-Dropout LDO
WL9005
Pin Configuration
SOT23-3L
2
1
SOT23
SOT23-5L
5
4
3
2
1
SOT89-3L
3
1
2
DFN1x1-4L
3
Pin Description
Pin No.
SOT23-3L SOT23-5L SOT89
SOT89-3L
DFN1x1-4L
Pin Name
Pin Function
2
1
2
4
VIN
Supply voltage input.
1
2
1
2
GND
Ground.
-----
3
-----
3
EN
Chip Enable Control Input
-----
4
-----
-----
NC
No Internal Connection.
3
5
3
1
VOUT
Voltage Output.
-----
-----
-----
5
SGND
Substrate of Chip.
Leave floating or tie to GND.
Order Information
WL9005①②-③④
Designator
Symbol
Description
①②
S3/S5/P3/D4
SOT23-3L / SOT23-5L / SOT89-3L / DFN1x1-4L
Integer
③④
Model
Output Voltage (09、10、12、15、18、25、
、28、30、33、36)
Marking**
WL9005S3-XX*
-----
WL9005S5-XX*
-----
WL9005P3-XX*
-----
WL9005D4-XX*
-----
Description
WL9005 0.3μA IQ ,High PSRR
500mA Low-Dropout LDO
Package
T/R Qty
SOT23
SOT23-3L
3,000 PCS
SOT23
SOT23-5L
3,000 PCS
SOT89
SOT89-3L
1,000 PCS
DFN1x1
DFN1x1-4L
10,000 PCS
Note:(*) XX Represents the Output Voltage
(**)
For marking information, contact our sales representative directly
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0.3μA IQ ,High PSRR,500mA Low-Dropout LDO
Absolute Maximum Ratings
WL9005
(1) (2)
Parameter
Symbol
Maximum Rating
Unit
VIN
VON/OFF
VSS -0.3~VSS+9.0
VSS -0.3~VIN+0.3
V
V
Output Current
IOUT
550
mA
Output Voltage
VOUT
VSS -0.3~VIN+0.3
V
Input Voltage
SOT23-3
400
SOT23-5
Power Dissipation
450
Pd
SOT89-3
DFN1x1-4L
Thermal Resistance
SOT23-3
SOT23-5
SOT89-3
DFN1x1-4L
mW
500
400
RθJA
(3)
(Junction-to-ambient thermal resistance)
250
220
200
℃/W
℃/W
℃/W
250
℃/W
Operating Temperature
Topr
-40~85
℃
Storage Temperature
Tstg
-40~125
℃
Soldering Temperature & Time
Tsolder
260℃, 10s
Note (1): Exceeding these ratings may damage the device.
Note (2): The device is not guaranteed to function outside of its operating conditions
Note (3): The package thermal impedance is calculated in accordance to JESD 51-7.
ESD Ratings
Item
V(ESD-HBM)
V(ESD-CDM)
ILATCH-UP
Description
Human Body Model (HBM)
ANSI/ESDA/JEDEC JS-001-2014
Classification, Class: 2
Charged Device Mode (CDM)
ANSI/ESDA/JEDEC JS-002-2014
Classification, Class: C0b
Value
Unit
±4000
V
±200
V
±150
mA
JEDEC STANDARD NO.78E APRIL 2016
Temperature Classification, Class: I
ESD testing is performed according to the respective JESD22 JEDEC standard.The human body model is a 100 pF capacitor discharged
through a 1.5kΩ resistor into each pin. The machine model is a 200pF capacitor discharged directly into each pin.
Recommended Operating Conditions
Parameter
MIN.
MAX.
Units
Supply voltage at VIN
2.0
7.0
V
Operating junction temperature range, Tj
-40
125
°C
Operating free air temperature range, TA
-25
85
°C
Note : All limits specified at room temperature (TA = 25°C) unless otherwise specified. All room temperature limits are 100% production
tested. All limits at temperature extremes are ensured through correlation using standard Statistical Quality Control (SQC) methods. All
limits are used to calculate Average Outgoing Quality Level (AOQL).
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0.3μA IQ ,High PSRR,500mA Low-Dropout LDO
WL9005
Electrical Characteristics
(TestConditions:VIN=4.3V, VOUT=3.3V,CIN=10uF, COUT=10uF,TA=25℃, unless otherwise specified.)
Parameter
Symbol
Input Voltage
VIN
Supply Current
IQ
Standby Current
ISTBY
Output Voltage
VOUT
Maximum Output
Current
IOUT(Max)
Dropout Voltage
VDROP(1)
Line Regulation
ΔVOUT/
ΔVIN•VOUT
Load Regulation
ΔVOUT
Current Limit
Short Current
ILIMIT
Power Supply
Rejection Rate
EN Threshold
Voltage
Output Noise
Voltage
Min
Typ
Max
Units
2.0
—
7.0
V
—
0.3
0.7
uA
—
—
0.1
uA
VIN=Vset+1.0V
IOUT=100mA
Vset*0.985
Vset
Vset*1.015
V
VIN=VOUT+1.0V
—
500
—
mA
IOUT=100mA
—
100
—
IOUT=200mA
IOUT=10mA
(Vset+0.5v)≦VIN≦7.0V
VIN=Vset+1.0V
1mA≦IOUT≦100mA
—
220
—
—
0.1
—
%/V
—
20
—
mV
—
—
550
90
—
—
mA
—
70
—
dB
VIN=Vset+1.0V
f=10KHz,IOUT= 100mA
—
65
—
dB
VIL
VIN=3V~ 5.5V, Shutdown
—
—
0.4
V
VIH
VIN=3V~ 5.5V, Start-Up
1.2
—
—
V
eNO
COUT=1uF
BW = 100Hz~10kHz
—
100
—
uVRMS
IOUT=30mA
—
±100
—
ppm/℃
—
160
—
℃
—
20
—
℃
ISHORT
PSRR
Output Voltage
ΔVOUT/
Temperature
ΔT•VOUT
Coefficient
Thermal Shutdown
TSD
Temperature
Thermal Shutdown
ΔTSD
Hysteresis
Conditions
VIN > VOUT ,EN=VIN
ILOAD=0mA
VEN = 0
RL=1Ω
VIN=Vset+1.0V
f=1KHz,IOUT= 100mA
mV
mA
Note:(1) Dropout Voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its
nominal value.
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0.3μA IQ ,High PSRR,500mA Low-Dropout LDO
WL9005
Typical Performance Characteristics
Test Condition: TA=25°C, unless otherwise note
1、VOUT vs TEMP
2、IQ vs VIN (※)
3、Load Regulation
4、Line Regulation
5、Dropout Voltage vs Load Current
6、PSRR
Note:(※)IQ refers to the working current when the chip is no-load, only when Vin >vout The chip will have a very low working current, the
above diagram is for Vout 1.5v Measured Curve, when Vin
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