LM4130AIM5X-2.5 [NSC]
Precision Micropower Low Dropout Voltage Reference; 精密微功耗低压差电压基准
| 型号： | LM4130AIM5X-2.5 |
| 厂家： | 
National Semiconductor |
| 描述： | Precision Micropower Low Dropout Voltage Reference |
| 文件： | 总12页 (文件大小：267K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
November 1999
LM4130
Precision Micropower Low Dropout Voltage Reference
General Description
Features
n Small SOT23-5 package
n High output voltage accuracy
n Low Temperature Coefficient
n Stable with capacitive loads to 100µF
n Low dropout voltage
The LM4130 family of precision voltage references performs
comparable to the best laser-trimmed bipolar references, but
in cost effective CMOS technology. Key to this break through
is the use of EEPROM registers for correction of curvature,
tempco, and accuracy on a CMOS bandgap architecture that
allows package level programming to overcome assembly
shift. The shifts in voltage accuracy and tempco during as-
sembly of die into plastic packages limit the accuracy of ref-
erences trimmed with laser techniques.
0.05%
10 ppm/˚C
@
≤275 mV 10 mA
n Supply Current
n Full accuracy
n Extended operation to 125˚C
n Excellent load and line regulation
n Output current
≤75 µA
−40˚C to 85˚C
Unlike other LDO references, the LM4130 requires no output
capacitor. Neither is a buffer amplifier required, even with
loads up to 20mA. These advantages and the SOT23 pack-
aging are important for cost-critical and space-critical appli-
cations.
20 mA
<
n Output impedance
n Voltage options:
1Ω
2.048V, 2.500V, and 4.096V
Series references provide lower power consumption than Applications Summary
shunt references, since they don’t have to idle the maximum
possible load current under no load conditions. This advan-
tage, the low quiescent current (75µA), and the low dropout
voltage(275mV) make the LM4130 ideal for battery-powered
n Portable, battery powered equipment
n Instrumentation and process control
n Automotive & Industrial
n Test equipment
n Data acquisition systems
n Precision regulators
n Battery chargers
n Base stations
solutions.
The LM4130 is available in five grades (A, B, C, D and E) for
greater flexibility. The best grade devices (A) have an initial
accuracy of 0.05% with guaranteed temperature coefficient
of 10ppm/˚C or less, while the lowest grade parts (E) have
an initial accuracy of 0.5% and a tempco of 30ppm/˚C.
n Communications
n Medical equipment
n Servo systems
Connection Diagram and Pin Configuration
DS101046-2
Refer to the Ordering Information Table in this Data Sheet for Specific Part
Number
DS101046-1
*
Optional, Recommended for improved transient response and
SOT23-5 Surface Mount Package
input noise reduction.
(See Application Information)
© 1999 National Semiconductor Corporation
DS101046
www.national.com
Ordering Information
Industrial Temperature Range (−40˚C to + 85˚C)
LM4130 Supplied as
1000 Units, Tape and
Reel
LM4130 Supplied as
3000 Units, Tape and
Reel
Initial Output Voltage Accuracy at 25˚C
And Temperature Coefficient
Part Marking
LM4130AIM5-2.0
LM4130AIM5-2.5
LM4130AIM5-4.1
LM4130BIM5-2.0
LM4130BIM5-2.5
LM4130BIM5-4.1
LM4130CIM5-2.0
LM4130CIM5-2.5
LM4130CIM5-4.1
LM4130DIM5-2.0
LM4130DIM5-2.5
LM4130DIM5-4.1
LM4130EIM5-2.0
LM4130EIM5-2.5
LM4130EIM5-4.1
LM4130AIM5X-2.0
LM4130AIM5X-2.5
LM4130AIM5X-4.1
LM4130BIM5X-2.0
LM4130BIM5X-2.5
LM4130BIM5X-4.1
LM4130CIM5X-2.0
LM4130CIM5X-2.5
LM4130CIM5X-4.1
LM4130DIM5X-2.0
LM4130DIM5X-2.5
LM4130DIM5X-4.1
LM4130EIM5X-2.0
LM4130EIM5X-2.5
LM4130EIM5X-4.1
R02A
R03A
R04A
R02B
R03B
R04B
R02C
R03C
R04C
R02D
R03D
R04D
R02E
R03E
R04E
0.05%, 10 ppm/˚C max (A grade)
0.2%, 10 ppm/˚C max (B grade)
0.1%, 20 ppm/˚C max (C grade)
0.4%, 20 ppm/˚C max (D grade)
0.5%, 30 ppm/˚C max (E grade)
SOT23-5 Package Marking Information
Only four fields of marking are possible on the SOT23-5’s small surface. This
table gives the meaning of the four fields.
Field Information
First Field:
=
R
Reference
Second and Third Field:
=
02 2.048V Voltage Option
=
03 2.50V Voltage Option
=
04 4.096V Voltage Option
Fourth Field:
=
A-E Initial Reference Voltage Tolerance and Temperature Coefficient
=
=
=
=
=
±
±
±
±
±
A
B
C
D
E
0.05%, 10ppm/˚C
0.2%, 10ppm/˚C
0.1%, 20ppm/˚C
0.4%, 20ppm/˚C
0.5%, 30ppm/˚C
www.national.com
2
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Lead Temperature:
Soldering, (10 sec.)
Vapor Phase (60 sec.)
Infrared (15 sec.)
+260˚C
+215˚C
+220˚C
Maximum Voltage on any Input
Output Short-Circuit Duration
−0.3V to 6V
Indefinite
350 mW
Operating Range (Note 1)
=
Power Dissipation (TA 25˚C)
Storage Temperature Range
−65˚C to +150˚C
−40˚C to +85˚C
(Note 2)
Operating Temperature
Range
ESD Susceptibility (Note 3)
Human Body Model
Machine Model
2 kV
200V
LM4130-2.048
Electrical Characteristics
=
=
=
=
Unless otherwise specified VCC 5V, ILOAD 0, TA 25˚C. Limits with standard typeface are for TA 25˚C, and limits in bold-
face type apply over the operating temperature range.
Min
(Note 5)
Typ
(Note 4)
Max
(Note 5)
Symbol
Parameter
Conditions
Units
VREF
Output Voltage Initial
Accuracy
%
±
±
±
±
±
LM4130A-2.048
LM4130B-2.048
LM4130C-2.048
LM4130D-2.048
LM4130E-2.048
0.05
0.2
0.1
0.4
0.5
TCVREF/˚C
(Note 6)
Temperature Coefficient
LM4130A, B
ppm/˚C
0˚C ≤ TA ≤ +85˚C
−40˚C ≤ TA ≤ +85˚C
10
20
LM4130C, D
LM4130E
20
30
=
∆VREF/∆VIN
Line Regulation
ILOAD 100µA
ppm/V
VREF + 300 mV ≤ VIN ≤ 5.5V
VREF + 400 mV ≤ VIN ≤ 5.5V
0 mA ≤ ILOAD ≤ 20 mA
75
200
350
∆VREF/∆ILOAD
Load Regulation
60
80
ppm/mA
32
50
Long-Term Stability
(Note 7)
1000 Hrs
∆VREF
ppm
mV
Thermal Hysteresis
(Note 8)
−40˚C ≤ TA ≤ +125˚C
ILOAD = 10 mA
0.1 Hz to 10 Hz
50
VIN - VREF
Dropout Voltage
(Note 9)
275
400
VN
IS
Output Noise Voltage
Supply Current
125
50
µVPP
µA
75
90
ISC
Short Circuit Current
30
60
mA
mA
65
3
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LM4130-2.500
Electrical Characteristics
=
=
=
Unless otherwise specified VCC 5V, ILOAD = 0 TA 25˚C. Limits with standard typeface are for TA 25˚C, and limits in bold-
face type apply over the operating temperature range.
Min
(Note 5)
Typ
(Note 4)
Max
(Note 5)
Symbol
Parameter
Conditions
Units
VREF
Output Voltage Initial
Accuracy
%
±
±
±
±
±
LM4130A-2.500
LM4130B-2.500
LM4130C-2.500
LM4130D-2.500
LM4130E-2.500
0.05
0.2
0.1
0.4
0.5
TCVREF/˚C
(Note 6)
Temperature Coefficient
LM4130A, B
ppm/˚C
0˚C ≤ TA ≤ +85˚C
−40˚C ≤ TA ≤ +85˚C
10
20
LM4130C, D
LM4130E
20
30
=
∆VREF/∆VIN
Line Regulation
ILOAD 100µA
ppm/V
VREF + 200 mV ≤ VIN ≤ 5.5V
VREF + 400 mV ≤ VIN ≤ 5.5V
0 mA ≤ ILOAD ≤ 20 mA
30
100
150
∆VREF/∆ILOAD
Load Regulation
25
50
50
60
80
ppm/mA
Long-Term Stability
(Note 7)
1000 Hrs
∆VREF
ppm
mV
Thermal Hysteresis
(Note 8)
−40˚C ≤ TA ≤ +125˚C
ILOAD = 10 mA
0.1 Hz to 10 Hz
VIN - VREF
Dropout Voltage
(Note 9)
275
400
VN
IS
Output Noise Voltage
Supply Current
150
50
µVPP
µA
75
90
ISC
Short Circuit Current
30
60
mA
mA
65
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4
LM4130-4.096
Electrical Characteristics
=
=
=
Unless otherwise specified VCC 5.0V, ILOAD = 0 TA 25˚C. Limits with standard typeface are for TA 25˚C, and limits in
boldface type apply over the operating temperature range.
Min
(Note 5)
Typ
(Note 4)
Max
(Note 5)
Symbol
Parameter
Conditions
Units
VREF
Output Voltage Initial
Accuracy
%
±
±
±
±
±
LM4130-4.096A
LM4130-4.096B
LM4130-4.096C
LM4130-4.096D
LM4130-4.096E
0.05
0.2
0.1
0.4
0.5
TCVREF/˚C
(Note 6)
Temperature Coefficient
LM4130A, B
ppm/˚C
0˚C ≤ TA ≤ +85˚C
10
−40˚C ≤ TA ≤ +85˚C
20
LM4130C, D
LM4130E
20
30
∆VREF/∆VIN
Line Regulation
ILOAD = 100µA
ppm/V
VREF + 500 mV ≤ VIN ≤ 5.5V
75
16
50
50
250
400
∆VREF/∆ILOAD
Load Regulation
0 mA ≤ ILOAD ≤ 20 mA
1000 Hrs
60
80
ppm/mA
Long-Term Stability
(Note 7)
∆VREF
ppm
mV
Thermal Hysteresis
(Note 8)
−40˚C ≤ TA ≤ +125˚C
ILOAD = 10 mA
VIN - VREF
Dropout Voltage
(Note 9)
275
500
VN
IS
Output Noise Voltage
Supply Current
0.1 Hz to 10 Hz
245
50
µVPP
µA
75
90
ISC
Short Circuit Current
30
60
mA
mA
65
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see Electrical Characteristics. The guar-
anteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by T
(maximum junction
JMAX
(junction to ambient thermal resistance) and T (ambient temperature). The maximum power dissipation at any temperature is: PDiss
=
temperature), θ
(T
JMAX
J-A
up to the value listed in the Absolute Maximum Ratings. θ for SOT23-5 package is 220˚C/W, T
J-A JMAX
A
MAX
=
125˚C.
− T )/θ
A
J-A
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF capacitor discharged di-
rectly into each pin.
Note 4: Typical numbers are at 25˚C and represent the most likely parametric norm.
Note 5: Limits are 100% production tested at 25˚C. Limits over the operating temperature range are guaranteed through correlation using Statistical Quality Control
(SQC) methods. The limits are used to calculate National’s Average Outgoing Quality Level (AOQL).
Note 6: Temperature coefficient is measured by the ″Box″ method; i.e., the maximum ∆V
REF
is divided by the maximum ∆T.
@
Note 7: Long term stability is V
REF
25˚C measured during 1000 hrs.
Note 8: Thermal hysteresis is defined as the change in +25˚C output voltage before and after cycling the device from −40˚C to 125˚C.
Note 9: Dropout voltage is defined as the minimum input to output differential at which the output voltage drops by 0.5% below the value measured with a 5V input.
5
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=
=
LM4130 Typical Performance Characteristics TA 25˚C, No Load, VIN 5.0V, unless other-
wise noted.
Temperature Drift Characteristics
Load Regulation vs Temperature
DS101046-44
DS101046-36
Line Regulation vs Load
Line Regulation vs Temperature
DS101046-31
DS101046-17
www.national.com
6
=
=
LM4130 Typical Performance Characteristics TA 25˚C, No Load, VIN 5.0V, unless
otherwise noted. (Continued)
=
Output Voltage vs Load Current
Dropout vs Load (VREF 2.5)
DS101046-21
DS101046-42
Supply Current vs Temperature
Short Circuit Current vs Temperature
DS101046-29
DS101046-28
7
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=
=
LM4130 Typical Performance Characteristics TA 25˚C, No Load, VIN 5.0V, unless
otherwise noted. (Continued)
Power-Up Response (2.048V)
Power-Up Response (4.096V)
DS101046-40
DS101046-34
Output Impedance
Power Supply Rejection Ratio
DS101046-22
DS101046-23
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8
=
=
LM4130 Typical Performance Characteristics TA 25˚C, No Load, VIN 5.0V, unless
otherwise noted. (Continued)
Load Transient Response
Line Transient Response
DS101046-25
DS101046-26
=
0.1Hz to 10 Hz Noise (VREF 2.5V)
Output Noise Spectra
DS101046-43
DS101046-27
9
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Pin Functions
VREF (Pin 5): Reference Output. The output of the LM4130
can source up to 20 mA. It is stable with output capacitor
ranges from 0 to 100 µF.
Voltage Reference with Complimentary Output
VIN (Pin 4):Positive Supply. Bypassing with a 0.1µF capaci-
tor is recommended if the output loading changes or input is
noisy.
Ground (Pin 2):Negative Supply or Ground Connection.
NC (Pins 1, 3):No Connection (internally terminated). These
pins must be left unconnected.
DS101046-6
Application Information
Precision High Current Low Droput Regulator
Output Capacitor
The LM4130 is designed to operate with or without an output
capacitor and is stable with capacitive loads of up to 100µF.
Connecting a capacitor between the output and ground will
significantly improve the load transient response when
switching from a light load to a heavy load. However, the out-
put capacitor should not be made arbitrarily large because it
will effect the turn-on time as well as line and load transients.
Input Capacitor
A small 0.1µF capacitor on the input significantly improves
stability under a wide range of load conditions. With an input
bypass capacitor, the LM4130 will drive any combination of
resistance and capacitance up to VREF/20mA and 100µF re-
spectively.
DS101046-7
Noise on the power-supply input can effect the output noise,
but it can be reduced by using an optional bypass capacitor
between the input pin and the ground.
Precision Voltage Reference
with Force and Sense Output
Printed Circuit Board Layout Consideration
References in SOT packages are generally less prone to as-
sembly stress than devices in Small Outline (SOIC) pack-
age.
To minimize the mechanical stress due to PC board mount-
ing that can cause the output voltage to shift from its initial
value, mount the reference on a low flex area of the PC
board, such as near the edge or a corner.
DS101046-9
Typical Application Circuits
Programmable Current Source
Precision High Current Low Droput Regulator
DS101046-10
DS101046-4
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10
Typical Application Circuits
Supply Splitter
(Continued)
Precision Regulator with Current Limiting Circuit
DS101046-13
DS101046-11
Low Cost Higher Output
Current Circuit
DS101046-12
*
%
Select R to deliver 80 of typical load current. The LM4130 then will
1
source as necessary, up to 20mA, to maintain the output regulation. Care
must be taken not to remove the load as the output will be driven to the
rail. This approach will effect line regulation.
11
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Physical Dimensions inches (millimeters) unless otherwise noted
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DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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