AP139-XXWL-7 [DIODES]
300mA LOW-NOISE CMOS LDO; 300mA低压噪声CMOS LDO
| 型号： | AP139-XXWL-7 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | 300mA LOW-NOISE CMOS LDO |
| 文件： | 总7页 (文件大小：194K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AP139
300mA LOW-NOISE CMOS LDO
General Description
Features
The AP139 is a positive voltage linear regulator utilizing CMOS
technology. The features that include low quiescent current
(45μA typ.), low dropout voltage, and high output voltage
accuracy, make it ideal for battery applications. EN input
connected to the device will produce a low bias current.
The space-saving SOT25 package is attractive for “pocket” and
“hand held” applications.
•
•
•
Very Low Dropout Voltage
Low Current Consumption: Typ. 45μA, max. 60uA
Output Voltage: 1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V
3.3V, and 3.5V
Guaranteed 300mA Output
Input Range from 2.7 up to 5.5V
Thermal Shutdown
•
•
•
•
•
•
•
•
Current Limiting
This rugged device has both thermal shutdown, and current limit
protections to prevent device failure under the “worst” operating
conditions.
Stability with Low ESR Capacitors
Low Temperature Coefficient
Lead Free Package: SOT25
SOT25: Available in “Green” Molding Compound
(No Br, Sb)
In a low noise, regulated supply application, a 10nF capacitor is
necessary to be placed in between Bypass and Ground.
•
Lead Free Finish/RoHS Compliant (Note 1)
The AP139 is stable with a low ESR output capacitor of 1.0μF or
greater.
Applications
•
•
•
•
Personal Communication Devices
Home Electric/Electronic Appliances
PC Peripherals
Battery-Powered Devices
Ordering Information
AP139 - XX W X - 7
Package
Lead Free
Packing
Output Voltage
15:1.5V
18:1.8V
20:2.0V
W : SOT25
L : Lead Free
G : Green
7 : Tape & Reel
25:2.5V
28:2.8V
30:3.0V
33:3.3V
35:3.5V
7” Tape and Reel
Packaging
(Note 2)
Package
Device
Code
Quantity
Part Number Suffix
3000/Tape & Reel
3000/Tape & Reel
-7
-7
W
W
SOT25
SOT25
AP139-XXWL-7
AP139-XXWG-7
Lead-free
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP139 Rev. 6
1 of 7
FEBRUARY 2009
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© Diodes Incorporated
AP139
300mA LOW-NOISE CMOS LDO
Pin Descriptions
Pin Assignments
( Top View )
V OUT
5
Pin
Name
VIN
GND
EN
BYP
4
Pin No.
Description
Power Supply
1
2
3
4
5
Ground
AP139
Enable Pin
Bypass Signal Pin
Output
BYP
VOUT
1
2
3
V IN
GND
EN
SOT25
Block Diagram
VIN
VOUT
Current
Limit
1uA
Thermal
Shutdown
R1
EN
BYP
-
AMP
+
Vref
R2
GND
Absolute Maximum Ratings
Symbol
Parameter
Rating
+6
PD/(VIN-VO)
Unit
VIN
IOUT
VOUT
Input Voltage
V
mA
V
Output Current
Output Voltage
ESD Classification
Operating Junction Temperature Range
Maximum Junction Temperature
Internal Power Dissipation
GND - 0.3 to VIN+ 0.3
B
-40 to +125
150
TOP
TMJ
PD
ºC
ºC
mW
250
AP139 Rev. 6
2 of 7
FEBRUARY 2009
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© Diodes Incorporated
AP139
300mA LOW-NOISE CMOS LDO
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Unit
VIN
Input voltage
2.7
5.5
V
IOUT
TA
Output Current
0
300
85
mA
Operating Ambient Temperature
-40
°C
Electrical Characteristics (TA = +25ºC, unless otherwise noted)
Symbol
Parameter
Input Voltage
Quiescent Current
Standby Current
Test Conditions
Min
Typ.
Max
Unit
VIN
IQ
ISTB
Note 3
-
5.5
60
3.0
V
μA
μA
IO = 0mA
VIN = 5.0V, VOUT = 0V, VEN < VEL
-
-
45
2.0
Output Voltage Accuracy IO = 1mA, VIN = 5V
-2
-
-
2
-
%
VOUT
VOUT Temperature
Coefficient
50
ppm/ oC
IO = 1mA to 300mA,
VDROPOUT Dropout Voltage
-
-
-
0.45
V
VO ≥2.8V
V
OUT = VO(NOM) - 1.5%
IOUT
Output Current
Current Limit
300
300
-
-
mA
mA
ILIMIT
VOUT > 1.05V
cc = 5V, Vout < 1.05V
OUT = 1mA, VIN = (VOUT +1V) to 5.5V
IO = 1mA to 300mA, VIN = 5V
450
Ishort
△VLINE
△VLOAD
Short Circuit Current
Line Regulation
Load Regulation
-
-
-
-
-
-
-
-
150
0.1
300
0.3
mA
%
%
V
I
0.3
60
50
40
75
55
30
-
1
-
-
-
-
-
-
-
f = 1KHz
IO = 100mA,
CO = 2.2μF ceramic
PSRR Power Supply Rejection
f = 10KHz
f = 100KHz
f = 1KHz
f = 10KHz
f = 100KHz
dB
dB
IO = 100mA,
PSRR Power Supply Rejection CO = 2.2μF ceramic,
BYP = 20nF
C
-
VEH
Output ON
1.7
V
V
EN Input Threshold
VEL
Output OFF
-
-
-
-
-
0.8
<0.1
-
IEN
Enable Pin Current
Over Temperature
Shutdown
μA
oC
OTS
130
Over Temperature
Hysteresis
OTH
-
20
-
oC
θJA
θJC
Thermal Resistance
Thermal Resistance
SOT25 (Note 4)
SOT25 (Note 4)
226
34
ºC/W
ºC/W
Notes:
3. VIN(MIN) = VOUT + VDROPOUT.
4. Test conditions for SOT25: Devices mounted on FR-4 PC board, MRP, 1 oz. copper, single sided, calibrate at TJ=85 ºC, measure at TA=25 ºC,
no heat Sink, no air flow.
AP139 Rev. 6
3 of 7
FEBRUARY 2009
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© Diodes Incorporated
AP139
300mA LOW-NOISE CMOS LDO
Typical Application
VIN
VOUT
IN
OUT
AP139
BYP
GND
EN
C1
C2
C3
1uF
10nF
1uF
Typical Performance Characteristics
V c c V s Q u ie s c e n t C u rre n t
1 0 0
9 0
8 0
7 0
6 0
5 0
4 0
3 0
2 0
T A = 2 5 ℃
1 0
0
3 .5
4
4 .5
5
5 .5
6
V c c (V )
Power Supply Rejection Ratio
Power Supply Rejection Ratio
0
0
-10
-20
-30
-40
-50
-60
-70
BP = 10nF
Iout = 100mA
-10
-20
-30
-40
-50
-60
-70
-80
-90
100mA
10mA
BP = 1nF
BP = 5nF
1mA
BP = 10nF
BP = 20nF
-80
-90
1.0E+06
1.0E+04 1.0E+05
1.0E+00 1.0E+01 1.0E+02 1.0E+03
1.0E+00
1.0E+01 1.0E+02
1.0E+03 1.0E+04 1.0E+05 1.0E+06
Frequency (Hz)
Frequency (Hz)
AP139 Rev. 6
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AP139
300mA LOW-NOISE CMOS LDO
Typical Performance Characteristics (Continued)
Power Supply Rejection Ratio
Vout Vs Current Limit
0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
BP=0
-10
-20
-30
-40
-50
-60
-70
-80
-90
100mA
10mA
1mA
Vcc=5V
3.5
1.5
1.8
2
2.5
2.8
3
3.3
1.0E+00 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 1.0E+06
Frequency (Hz)
Vout (V)
V c c V s S h o rt C u rre n t
4 0 0
3 5 0
3 0 0
2 5 0
T o p to b o tto m
2 0 0
V o u t= 1 .5 V
1 5 0
1 0 0
V o u t= 1 .8 V
V o u t= 2 .5 V
V o u t= 3 .3 V
5 0
0
3 .5
4
4 .5
V cc (V )
5
5 .5
6
Functional Description
The AP139 of CMOS regulators contain a PMOS pass transistor,
voltage reference, error amplifier, over-current protection,
thermal shutdown.
Enable
The enable pin normally floats high. When actively, pulled low,
the PMOS pass transistor shuts off, and all internal circuits are
powered down. In this state, the quiescent current is less than
2μA. This pin behaves much like an electronic switch.
The P-channel pass transistor receives data from the error
amplifier, over-current protection, and thermal protection circuits.
During normal operation, the error amplifier compares the output
voltage to a precision reference. The over-current and thermal
shutdown circuits become active when the junction temperature
exceeds 130oC, or the current exceeds 300mA. During thermal
shutdown, the output voltage remains low. Normal operation is
restored when the junction temperature drops below 110oC.
External Capacitor
The AP139 is stable with a low ESR output capacitor to ground of
1.0μF or greater. It can keep stable even with higher ESR
capacitors. A second capacitor is recommended between the
input and ground to stabilize VIN. The input capacitor should be
larger than 0.1μF to have a beneficial effect. All capacitors should
be placed in close proximity to the pins. A “quiet” ground
termination is desirable.
The AP139 switches from voltage mode to current mode when
the load exceeds the rated output current. This prevents
over-stress.
AP139 Rev. 6
5 of 7
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FEBRUARY 2009
© Diodes Incorporated
AP139
300mA LOW-NOISE CMOS LDO
Marking Information
(1) SOT25
( Top View )
5
1
4
XX : Identification code
Y : Year 0~9
W X
XX Y
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
X : a~z : Lead Free
2
3
A~Z : Green
Part Number
Package
Identification Code
AP139-15W
AP139-18W
AP139-20W
AP139-25W
AP139-28W
AP139-30W
AP139-33W
AP139-35W
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
SOT25
N0
N1
N2
N3
N4
N5
N6
N7
Package Information (All Dimensions in mm)
AP139 Rev. 6
6 of 7
FEBRUARY 2009
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© Diodes Incorporated
AP139
300mA LOW-NOISE CMOS LDO
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agreeto hold Diodes Incorporatedand all the companieswhose products are represented onour website, harmlessagainst all damages.
LIFE SUPPORT
Diodes Incorporated productsare not authorizedfor use as criticalcomponents in lifesupport devices or systemswithout theexpressed written approval of the
President of DiodesIncorporated.
AP139 Rev. 6
7 of 7
FEBRUARY 2009
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© Diodes Incorporated
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