LM3480IM3X-3.3/NOPB [NSC]
IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3, PLASTIC, SOT-23, SOP-3, Fixed Positive Single Output LDO Regulator;
| 型号： | LM3480IM3X-3.3/NOPB |
| 厂家： | 
National Semiconductor |
| 描述： | IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO3, PLASTIC, SOT-23, SOP-3, Fixed Positive Single Output LDO Regulator 光电二极管 输出元件 调节器 |
| 文件： | 总11页 (文件大小：695K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
March 2005
LM3480
100 mA, SOT-23, Quasi Low-Dropout Linear Voltage
Regulator
General Description
Key Specifications
n 30V maximum input for operation
The LM3480 is an integrated linear voltage regulator. It
features operation from an input as high as 30V and a
guaranteed maximum dropout of 1.2V at the full 100 mA
load. Standard packaging for the LM3480 is the 3-lead Su-
perSOT® package.
n 1.2V guaranteed maximum dropout over full load and
temperature ranges
n 100 mA guaranteed minimum load current
n
5% guaranteed output voltage tolerance over full load
and temperature ranges
The 5, 12, and 15V members of the LM3480 series are
intended as tiny alternatives to industry standard LM78LXX
series and similar devices. The 1.2V quasi low dropout of
LM3480 series devices makes them a nice fit in many appli-
cations where the 2 to 2.5V dropout of LM78LXX series
devices precludes their (LM78LXX series devices) use.
n −40 to +125˚C junction temperature range for operation
Features
n 3.3, 5, 12, and 15V versions available
n Packaged in the tiny 3-lead SuperSOT package
The LM3480 series features a 3.3V member. The SOT pack-
aging and quasi low dropout features of the LM3480 series
converge in this device to provide a very nice, very tiny 3.3V,
100 mA bias supply that regulates directly off the system
5V 5% power supply.
Applications
n Tiny alternative to LM78LXX series and similar devices
n Tiny 5V 5% to 3.3V, 100 mA converter
n Post regulator for switching DC/DC converter
n Bias supply for analog circuits
Typical Application Circuit
10007002
Connection Diagram
10007001
Top View
SOT-23 Package
3-Lead, Molded-Plastic Small-Outline Transistor (SOT) Package
Package Code MF03A (Note 1)
®
SuperSOT is a registered trademark of National Semiconductor.
© 2005 National Semiconductor Corporation
DS100070
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Ordering Information
Output
Voltage
(V)
Order
Number
(Note 2)
Package
Marking
(Note 3)
L0A
Comments
3.3
3.3
5
LM3480IM3-3.3
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
1000 Units on Tape and Reel
3000Units on Tape and Reel
1000 Units on Tape and Reel
3000 Units on Tape and Reel
LM3480IM3X-3.3
LM3480IM3-5.0
LM3480IM3X-5.0
LM3480IM3-12
LM3480IM3X-12
LM3480IM3-15
LM3480IM3X-15
L0A
L0B
5
L0B
12
12
15
15
L0C
L0C
L0D
L0D
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2
Absolute Maximum Ratings (Note 4)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD (Note 7)
2kV
Operating Ratings (Note 4)
Max. Input Voltage (IN to GND)
30V
−40 to +125˚C
250mW
Input Voltage (IN to GND)
Power Dissipation (Note 5)
Junction Temp. (Note 5)
Ambient Storage Temp.
Soldering Time, Temp. (Note 6)
Wave
35V
333mW
Junction Temp. (TJ)
Max. Power Dissipation (Note 8)
+150˚C
−65 to +150˚C
4 sec., 260˚C
10 sec., 240˚C
75 sec., 219˚C
Infrared
Vapor Phase
Electrical Characteristics
LM3480-3.3, LM3480-5.0
Typicals and limits appearing in normal type apply for TA = TJ = 25˚C. Limits appearing in boldface type apply over the entire
junction temperature range for operation, −40 to +125˚C. (Notes 9, 10, 11)
Nominal Output Voltage (VNOM
)
3.3V
Typical
5.0V
Typical
Units
Symbol
Parameter
Conditions
VIN = VNOM + 1.5V,
1 mA ≤ IOUT ≤ 100 mA
Limit
Limit
VOUT
Output Voltage
3.30
5.00
V
3.17
3.14
3.43
3.46
4.80
4.75
5.20
5.25
V(min)
V(min)
V(max)
V(max)
mV
∆VOUT
∆VOUT
IGND
Line Regulation
Load Regulation
VNOM + 1.5V ≤ VIN ≤ 30V,
IOUT = 1 mA
10
20
2
12
20
2
25
40
4
25
40
4
mV(max)
mV
VIN = VNOM + 1.5V,
10 mA ≤ IOUT ≤ 100 mA
VNOM + 1.5V ≤ VIN ≤ 30V,
No Load
mV(max)
mA
Ground Pin
Current
mA(max)
V
VIN
-
Dropout Voltage
IOUT = 10 mA
0.7
0.7
VOUT
0.9
0.9
V(max)
V(max)
V
1.0
1.0
IOUT = 100 mA
0.9
0.9
1.1
1.1
V(max)
V(max)
µVrms
1.2
1.2
en
Output Noise
Voltage
VIN = 10V,
100
150
Bandwidth: 10 Hz to 100 kHz
3
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Electrical Characteristics (Continued)
LM3480-12, LM3480-15
Typicals and limits appearing in normal type apply for TA = TJ = 25˚C. Limits appearing in boldface type apply over the entire
junction temperature range for operation, −40 to +125˚C. (Notes 9, 10, 11)
Nominal Output Voltage (VNOM
)
12V
Typical
15V
Typical
Units
Symbol
Parameter
Conditions
Limit
Limit
VOUT
Output Voltage
VIN = VNOM + 1.5V,
12.00
15.00
V
1 mA ≤ IOUT ≤ 100 mA
11.52
11.40
12.48
12.60
14.40
14.25
15.60
15.75
V(min)
V(min)
V(max)
V(max)
mV
∆VOUT
∆VOUT
IGND
Line Regulation
Load Regulation
VNOM + 1.5V ≤ VIN ≤ 30V,
IOUT = 1 mA
14
36
2
16
45
2
40
60
4
40
75
4
mV(max)
mV
VIN = VNOM + 1.5V,
10 mA ≤ IOUT ≤ 100 mA
VNOM + 1.5V ≤ VIN ≤ 30V,
No Load
mV(max)
mA
Ground Pin
Current
mA(max)
V
VIN
-
Dropout Voltage
IOUT = 10 mA
0.7
0.7
VOUT
0.9
0.9
V(max)
V(max)
V
1.0
1.0
IOUT = 100 mA
0.9
0.9
1.1
1.1
V(max)
V(max)
µVrms
1.2
1.2
en
Output Noise
Voltage
VIN = 10V,
360
450
Bandwidth: 10 Hz to 100 kHz
Note 1: The package code MA03B is internal to National Semiconductor Corporation and indicates a specific version of the SOT-23 package and associated
mechanical drawings.
Note 2: The suffix “I” indicates the junction temperature range for operation is the industrial temperature range, −40 to +125˚C. The suffix “M3” indicates the die is
packaged in the 3-lead SOT-23 package. The suffix “X” indicates the devices will be supplied in blocks of 3k units as opposed to blocks of 250 units.
Note 3: Because the entire part number does not fit on the SOT-23 package, the SOT-23 package is marked with this code instead of the part number.
Note 4: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the device
is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical
Characteristics tables.
Note 5: The Absolute Maximum power dissipation depends on the ambient temperature and can be calculated using P = (T - T )/θ where T is the junction
J
A
JA
J
temperature, T is the ambient temperature, and θ is the junction-to-ambient thermal resistance. The 333 mW rating results from substituting the Absolute
A
JA
Maximum junction temperature, 150˚C, for T , 50˚C for T , and 300˚C/W for θ . More power can be safely dissipated at lower ambient temperatures. Less power
J
A
JA
can be safely dissipated at higher ambient temperatures. The Absolute Maximum power dissipation can be increased by 3.33 mW for each ˚C below 50˚C ambient.
It must be derated by 3.33 mW for each ˚C above 50˚C ambient. A θ of 300˚C/W represents the worst-case condition of no heat sinking of the 3-lead plastic SOT-23
JA
package. Heat sinking enables the safe dissipation of more power. The LM3480 actively limits its junction temperature to about 150˚C.
Note 6: Times shown are dwell times. Temperatures shown are dwell temperatures. For detailed information on soldering plastic small-outline packages, refer to
the Packaging Databook available from National Semiconductor Corporation.
Note 7: For testing purposes, ESD was applied using the human-body model, a 100 pF capacitor discharged through a 1.5 kΩ resistor.
Note 8: As with the Absolute Maximum power dissipation, the maximum power dissipation for operation depends on the ambient temperature. The 250 mW rating
appearing under Operating Ratings results from substituting the maximum junction temperature for operation, 125˚C, for T , 50˚C for T , and 300˚C/W for θ in
J
A
JA
P = (T - T )/θ . More power can be dissipated at lower ambient temperatures. Less power can be dissipated at higher ambient temperatures. The maximum power
J
A
JA
dissipation for operation appearing under Operating Ratings can be increased by 3.33 mW for each ˚C below 50˚C ambient. It must be derated by 3.33 mW for each
˚C above 50˚C ambient. A θ of 300˚C/W represents the worst-case condition of no heat sinking of the 3-lead plastic SOT-23 package. Heat sinking enables the
JA
dissipation of more power during operation.
Note 9: A typical is the center of characterization data taken with T = T = 25˚C. Typicals are not guaranteed.
A
J
Note 10: All limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production with T = T = 25˚C. All hot and cold
A
J
limits are guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical process control.
Note 11: All voltages except dropout are with respect to the voltage at the GND pin.
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4
Typical Performance Characteristics
Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1
µF, COUT = 0.1 µF, and TA .=25˚C.
Dropout Voltage
vs Load Current
Dropout Voltage
vs Junction Temperature
10007019
10007020
Ground Pin Current
vs Input Voltage
Ground Pin Current
vs Input Voltage
10007009
10007010
5
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Typical Performance Characteristics Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF,
COUT = 0.1 µF, and TA .=25˚C. (Continued)
Ground Pin Current
vs Load Current
Ground Pin Current
vs Junction Temperature
10007021
10007022
Input Current
Input Current
vs Input Voltage
vs Input Voltage
10007011
10007012
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6
Typical Performance Characteristics Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF,
COUT = 0.1 µF, and TA .=25˚C. (Continued)
Line Transient Response
Load Transient Response
Load Transient Response
Line Transient Response
Load Transient Response
Load Transient Response
10007003
10007005
10007007
10007004
10007006
10007008
7
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Typical Performance Characteristics Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF,
COUT = 0.1 µF, and TA .=25˚C. (Continued)
Output Voltage
vs Input Voltage
Output Voltage
vs Input Voltage
10007013
10007014
Output Voltage
vs Input Voltage
Output Voltage
vs Input Voltage
10007015
10007016
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8
Typical Performance Characteristics Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF,
COUT = 0.1 µF, and TA .=25˚C. (Continued)
Output Short-
Circuit Current
Output Short-
Circuit Current
10007017
10007018
Power Supply
Rejection Ratio
Power Supply
Rejection Ratio
10007024
10007025
9
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Typical Performance Characteristics Unless indicated otherwise, VIN = VNOM + 1.5V, CIN = 0.1 µF,
COUT = 0.1 µF, and TA .=25˚C. (Continued)
DC Load
Regulation
10007023
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10
Physical Dimensions inches (millimeters)
unless otherwise noted
SOT-23 Package
3-Lead Small-Outline Package (M3)
For Ordering, Refer to Ordering Information Table
NS Package Number MF03A
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves
the right at any time without notice to change said circuitry and specifications.
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