LM4128, LM4128Q
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SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
LM4128/LM4128Q SOT-23 Precision Micropower Series Voltage Reference
Check for Samples: LM4128, LM4128Q
FEATURES
DESCRIPTION
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Ideal for space critical applications, the LM4128
precision voltage reference is available in the SOT-23
surface-mount package. The LM4128’s advanced
design eliminates the need for an external stabilizing
capacitor while ensuring stability with capacitive loads
up to 10 µF, thus making the LM4128 easy to use.
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Output Voltage Initial Accuracy 0.1%
Low Temperature Coefficient 75 ppm/°C
Low Supply Current, 60 µA
Enable Pin Allowing a 3 µA Shutdown Mode
Up to 20 mA Output Current
Voltage Options 1.8V, 2.048V, 2.5V, 3.0V, 3.3V,
4.096V
Custom Voltage Options Available (1.8V to
4.096V)
VIN Range of VREF + 400 mV to 5.5V @10 mA
Stable with Low ESR Ceramic Capacitors
5-Pin SOT-23 Package
−40°C to 125°C Junction Temperature Range
LM4128AQ/BQ/CQ/DQ are AEC-Q100 Grade 1
Qualified and are Manufactured on an
Automotive Grade Flow
Series references provide lower power consumption
than shunt references, since they do not have to idle
the maximum possible load current under no load
conditions. This advantage, the low quiescent current
(60 µA), and the low dropout voltage (400 mV) make
the LM4128 ideal for battery-powered solutions.
The LM4128 is available in four grades (A, B, C, and
D) for greater flexibility. The best grade devices (A)
have an initial accuracy of 0.1% with ensured
temperature coefficient of 75 ppm/°C or less, while
the lowest grade parts (D) have an initial accuracy of
1.0% and a tempco of 100 ppm/°C.
Typical Application Circuit
APPLICATIONS
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Instrumentation & Process Control
Test Equipment
Data Acquisition Systems
Base Stations
Servo Systems
Portable, Battery Powered Equipment
Automotive & Industrial Electronics
Precision Regulators
Battery Chargers
Communications
Medical Equipment
VREF
VIN
Input
Output
COUT *
CIN*
LM4128
Enable
EN
GND
*Note: The capacitor CIN is required and
the capacitor COUT is optional.
1
2
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2013, Texas Instruments Incorporated
LM4128, LM4128Q
SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
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Connection Diagram
N/C 1
5 VREF
GND 2
EN 3
4 VIN
5-Pin SOT-23 Package – Top View
See Package Number DBV (R-PDSO-G5)
PIN DESCRIPTIONS
Pin #
Name
Function
1
N/C
No connect pin, leave floating
2
GND
Ground
3
EN
Enable pin
4
VIN
Input supply
5
VREF
Reference output
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings (1)
Maximum Voltage on any input
-0.3 to 6V
Output short circuit duration
Indefinite
Power Dissipation (TA = 25°C) (2)
350 mW
−65°C to 150°C
Storage Temperature Range
Lead Temperature
ESD Susceptibility
(1)
(2)
(3)
(3)
(soldering, 10sec)
260°C
Vapor Phase (60 sec)
215°C
Infrared (15sec)
220°C
Human Body Model
2 kV
Absolute Maximum Ratings indicate limits beyond which damage may occur to the device. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications, see Electrical
Characteristics.
Without PCB copper enhancements. The maximum power dissipation must be de-rated at elevated temperatures and is limited by TJMAX
(maximum junction temperature), θJ-A (junction to ambient thermal resistance) and TA (ambient temperature). The maximum power
dissipation at any temperature is: PDissMAX = (TJMAX - TA) /θJ-A up to the value listed in the Absolute Maximum Ratings. θJ-A for SOT-23
package is 220°C/W, TJMAX = 125°C.
The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Operating Ratings
Maximum Input Supply Voltage
5.5V
Maximum Enable Input Voltage
VIN
Maximum Load Current
20mA
−40°C to +125°C
Junction Temperature Range (TJ)
2
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SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
Electrical Characteristics
LM4128-1.8 (VOUT = 1.8V)
Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of 40°C to +125°C unless otherwise specified. Minimum and Maximum limits are ensured through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes
only. Unless otherwise specified VIN = 5V and ILOAD = 0A.
Symbol
VREF
Parameter
Conditions
Min (1)
Typ (2)
LM4128A-1.8
(A Grade - 0.1%)
-0.1
+0.1
LM4128B-1.8
(B Grade - 0.2%)
-0.2
+0.2
LM4128C-1.8
(C Grade - 0.5%)
-0.5
+0.5
LM4128D-1.8
(D Grade - 1.0%)
-1.0
+1.0
Temperature Coefficient
LM4128A-1.8
75
LM4128B-1.8
75
LM4128C-1.8
100
LM4128D-1.8
IQ_SD
ppm / °C
100
Supply Current
60
100
7
µA
Supply Current in Shutdown
EN = 0V
3
Line Regulation
VREF + 400 mV ≤ VIN ≤ 5.5V
30
ΔVREF/ΔILOAD
Load Regulation
0 mA ≤ ILOAD ≤ 20 mA
25
Long Term Stability (4)
1000 Hrs
50
Thermal Hysteresis (5)
-40°C ≤ TJ ≤ +125°C
75
Dropout Voltage (6)
ILOAD = 10 mA
200
VN
Output Noise Voltage
0.1 Hz to 10 Hz
170
ISC
Short Circuit Current
75
mA
VIL
Enable Pin Maximum Low Input Level
35
%V
VIH
Enable Pin Minimum High Input Level
VIN - VREF
(2)
(3)
(4)
(5)
(6)
%
ΔVREF/ΔVIN
ΔVREF
(1)
Unit
Output Voltage Initial Accuracy
TCVREF / °C (3)
IQ
Max (1)
65
µA
ppm / V
120
ppm / mA
ppm
400
mV
µVPP
%V
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control.
Typical numbers are at 25°C and represent the most likely parametric norm.
Temperature coefficient is measured by the "Box" method; i.e., the maximum ΔVREF is divided by the maximum ΔT.
Long term stability is VREF @25°C measured during 1000 hrs.
Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from (-40°C to 125°C).
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.
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Electrical Characteristics
LM4128-2.0 (VOUT = 2.048V)
Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of 40°C to +125°C unless otherwise specified. Minimum and Maximum limits are ensured through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes
only. Unless otherwise specified VIN = 5V and ILOAD = 0A.
Symbol
VREF
Parameter
Conditions
Min (1)
Typ (2)
LM4128A-2.0
(A Grade - 0.1%)
-0.1
+0.1
LM4128B-2.0
(B Grade - 0.2%)
-0.2
+0.2
LM4128C-2.0
(C Grade - 0.5%)
-0.5
+0.5
LM4128D-2.0
(D Grade - 1.0%)
-1.0
+1.0
Temperature Coefficient
LM4128A-2.0
75
LM4128B-2.0
75
LM4128C-2.0
100
LM4128D-2.0
IQ_SD
4
ppm / °C
100
Supply Current
60
100
7
µA
Supply Current in Shutdown
EN = 0V
3
Line Regulation
VREF + 400 mV ≤ VIN ≤ 5.5V
30
ΔVREF/ΔILOAD
Load Regulation
0 mA ≤ ILOAD ≤ 20 mA
25
Long Term Stability (4)
1000 Hrs
50
Thermal Hysteresis (5)
-40°C ≤ TJ ≤ +125°C
75
Dropout Voltage (6)
ILOAD = 10 mA
175
VN
Output Noise Voltage
0.1 Hz to 10 Hz
190
ISC
Short Circuit Current
75
mA
VIL
Enable Pin Maximum Low Input Level
35
%V
VIH
Enable Pin Minimum High Input Level
VIN - VREF
(2)
(3)
(4)
(5)
(6)
%
ΔVREF/ΔVIN
ΔVREF
(1)
Unit
Output Voltage Initial Accuracy
TCVREF / °C (3)
IQ
Max (1)
65
µA
ppm / V
120
ppm / mA
ppm
400
mV
µVPP
%V
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control.
Typical numbers are at 25°C and represent the most likely parametric norm.
Temperature coefficient is measured by the "Box" method; i.e., the maximum ΔVREF is divided by the maximum ΔT.
Long term stability is VREF @25°C measured during 1000 hrs.
Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from (-40°C to 125°C).
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.
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SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
Electrical Characteristics
LM4128-2.5 (VOUT = 2.5V)
Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of 40°C to +125°C unless otherwise specified. Minimum and Maximum limits are ensured through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes
only. Unless otherwise specified VIN = 5V and ILOAD = 0A.
Symbol
VREF
Parameter
Conditions
Min (1)
Typ (2)
LM4128A-2.5
(A Grade - 0.1%)
-0.1
+0.1
LM4128B-2.5
(B Grade - 0.2%)
-0.2
+0.2
LM4128C-2.5
(C Grade - 0.5%)
-0.5
+0.5
LM4128D-2.5
(D Grade - 1.0%)
-1.0
+1.0
Temperature Coefficient
LM4128A-2.5
75
LM4128B-2.5
75
LM4128C-2.5
100
LM4128D-2.5
IQ_SD
ppm / °C
100
Supply Current
60
100
7
µA
Supply Current in Shutdown
EN = 0V
3
Line Regulation
VREF + 400 mV ≤ VIN ≤ 5.5V
50
ΔVREF/ΔILOAD
Load Regulation
0 mA ≤ ILOAD ≤ 20 mA
25
Long Term Stability (4)
1000 Hrs
50
Thermal Hysteresis (5)
-40°C ≤ TJ ≤ +125°C
75
Dropout Voltage (6)
ILOAD = 10 mA
175
VN
Output Noise Voltage
0.1 Hz to 10 Hz
275
ISC
Short Circuit Current
75
mA
VIL
Enable Pin Maximum Low Input Level
35
%V
VIH
Enable Pin Minimum High Input Level
VIN - VREF
(2)
(3)
(4)
(5)
(6)
%
ΔVREF/ΔVIN
ΔVREF
(1)
Unit
Output Voltage Initial Accuracy
TCVREF / °C (3)
IQ
Max (1)
65
µA
ppm / V
120
ppm / mA
ppm
400
mV
µVPP
%V
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control.
Typical numbers are at 25°C and represent the most likely parametric norm.
Temperature coefficient is measured by the "Box" method; i.e., the maximum ΔVREF is divided by the maximum ΔT.
Long term stability is VREF @25°C measured during 1000 hrs.
Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from (-40°C to 125°C).
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.
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Electrical Characteristics
LM4128-3.0 (VOUT = 3.0V)
Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of 40°C to +125°C unless otherwise specified. Minimum and Maximum limits are ensured through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes
only. Unless otherwise specified VIN = 5V and ILOAD = 0A.
Symbol
VREF
Parameter
Conditions
Min (1)
Typ (2)
LM4128A-3.0
(A Grade - 0.1%)
-0.1
+0.1
LM4128B-3.0
(B Grade - 0.2%)
-0.2
+0.2
LM4128C-3.0
(C Grade - 0.5%)
-0.5
+0.5
LM4128D-3.0
(D Grade - 1.0%)
-1.0
+1.0
Temperature Coefficient
LM4128A-3.0
75
LM4128B-3.0
75
LM4128C-3.0
100
LM4128D-3.0
IQ_SD
6
ppm / °C
100
Supply Current
60
100
7
µA
Supply Current in Shutdown
EN = 0V
3
Line Regulation
VREF + 400 mV ≤ VIN ≤ 5.5V
70
ΔVREF/ΔILOAD
Load Regulation
0 mA ≤ ILOAD ≤ 20 mA
25
Long Term Stability (4)
1000 Hrs
50
Thermal Hysteresis (5)
-40°C ≤ TJ ≤ +125°C
75
Dropout Voltage (6)
ILOAD = 10 mA
175
VN
Output Noise Voltage
0.1 Hz to 10 Hz
285
ISC
Short Circuit Current
75
mA
VIL
Enable Pin Maximum Low Input Level
35
%V
VIH
Enable Pin Minimum High Input Level
VIN - VREF
(2)
(3)
(4)
(5)
(6)
%
ΔVREF/ΔVIN
ΔVREF
(1)
Unit
Output Voltage Initial Accuracy
TCVREF / °C (3)
IQ
Max (1)
65
µA
ppm / V
120
ppm / mA
ppm
400
mV
µVPP
%V
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control.
Typical numbers are at 25°C and represent the most likely parametric norm.
Temperature coefficient is measured by the "Box" method; i.e., the maximum ΔVREF is divided by the maximum ΔT.
Long term stability is VREF @25°C measured during 1000 hrs.
Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from (-40°C to 125°C).
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.
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Copyright © 2006–2013, Texas Instruments Incorporated
Product Folder Links: LM4128 LM4128Q
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SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
Electrical Characteristics
LM4128-3.3 (VOUT = 3.3V)
Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of 40°C to +125°C unless otherwise specified. Minimum and Maximum limits are ensured through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes
only. Unless otherwise specified VIN = 5V and ILOAD = 0A.
Symbol
VREF
Parameter
Conditions
Min (1)
Typ (2)
LM4128A-3.3
(A Grade - 0.1%)
-0.1
+0.1
LM4128B-3.3
(B Grade - 0.2%)
-0.2
+0.2
LM4128C-3.3
(C Grade - 0.5%)
-0.5
+0.5
LM4128D-3.3
(D Grade - 1.0%)
-1.0
+1.0
Temperature Coefficient
LM4128A-3.3
75
LM4128B-3.3
75
LM4128C-3.3
100
LM4128D-3.3
IQ_SD
ppm / °C
100
Supply Current
60
100
7
µA
Supply Current in Shutdown
EN = 0V
3
Line Regulation
VREF + 400 mV ≤ VIN ≤ 5.5V
85
ΔVREF/ΔILOAD
Load Regulation
0 mA ≤ ILOAD ≤ 20 mA
25
Long Term Stability (4)
1000 Hrs
50
Thermal Hysteresis (5)
-40°C ≤ TJ ≤ +125°C
75
Dropout Voltage (6)
ILOAD = 10 mA
175
VN
Output Noise Voltage
0.1 Hz to 10 Hz
310
ISC
Short Circuit Current
75
mA
VIL
Enable Pin Maximum Low Input Level
35
%V
VIH
Enable Pin Minimum High Input Level
VIN - VREF
(2)
(3)
(4)
(5)
(6)
%
ΔVREF/ΔVIN
ΔVREF
(1)
Unit
Output Voltage Initial Accuracy
TCVREF / °C (3)
IQ
Max (1)
65
µA
ppm / V
120
ppm / mA
ppm
400
mV
µVPP
%V
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control.
Typical numbers are at 25°C and represent the most likely parametric norm.
Temperature coefficient is measured by the "Box" method; i.e., the maximum ΔVREF is divided by the maximum ΔT.
Long term stability is VREF @25°C measured during 1000 hrs.
Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from (-40°C to 125°C).
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.
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Electrical Characteristics
LM4128-4.1 (VOUT = 4.096V)
Limits in standard type are for TJ = 25°C only, and limits in boldface type apply over the junction temperature (TJ) range of 40°C to +125°C unless otherwise specified. Minimum and Maximum limits are ensured through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes
only. Unless otherwise specified VIN = 5V and ILOAD = 0A.
Symbol
VREF
Parameter
Conditions
Min (1)
Typ (2)
LM4128A-4.1
(A Grade - 0.1%)
-0.1
+0.1
LM4128B-4.1
(B Grade - 0.2%)
-0.2
+0.2
LM4128C-4.1
(C Grade - 0.5%)
-0.5
+0.5
LM4128D-4.1
(D Grade - 1.0%)
-1.0
+1.0
Temperature Coefficient
LM4128A-4.1
75
LM4128B-4.1
75
LM4128C-4.1
100
LM4128D-4.1
IQ_SD
8
ppm / °C
100
Supply Current
60
100
3
7
µA
Supply Current in Shutdown
EN = 0V
Line Regulation
VREF + 400 mV ≤ VIN ≤ 5.5V
100
ΔVREF/ΔILOAD
Load Regulation
0 mA ≤ ILOAD ≤ 20 mA
25
Long Term Stability (4)
1000 Hrs
50
Thermal Hysteresis (5)
-40°C ≤ TJ ≤ +125°C
75
Dropout Voltage (6)
ILOAD = 10 mA
175
VN
Output Noise Voltage
0.1 Hz to 10 Hz
350
ISC
Short Circuit Current
75
mA
VIL
Enable Pin Maximum Low Input Level
35
%V
VIH
Enable Pin Minimum High Input Level
VIN - VREF
(2)
(3)
(4)
(5)
(6)
%
ΔVREF/ΔVIN
ΔVREF
(1)
Unit
Output Voltage Initial Accuracy
TCVREF / °C (3)
IQ
Max (1)
65
µA
ppm / V
120
ppm / mA
ppm
400
mV
µVPP
%V
Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control.
Typical numbers are at 25°C and represent the most likely parametric norm.
Temperature coefficient is measured by the "Box" method; i.e., the maximum ΔVREF is divided by the maximum ΔT.
Long term stability is VREF @25°C measured during 1000 hrs.
Thermal hysteresis is defined as the change in +25°C output voltage before and after cycling the device from (-40°C to 125°C).
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.
Submit Documentation Feedback
Copyright © 2006–2013, Texas Instruments Incorporated
Product Folder Links: LM4128 LM4128Q
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SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
Typical Performance Characteristics for 2.5V
Output Voltage vs Temperature
Load Regulation
2.506
2.5075
2.505
5 Typical Units
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
2.505
2.5025
2.5
2.4975
125°C
2.504
2.503
2.502
25°C
2.501
2.500
2.499
2.498
2.495
-40°C
2.497
2.4925
-40
2.496
-20
0
20
40
60
80
100 120
1
10
100
1000
10000 100000
LOAD CURRENT (PA)
o
TEMPERATURE ( C)
Figure 1.
Figure 2.
Line Regulation
0.1 - 10 Hz Noise
2.502
OUTPUT VOLTAGE (V)
125°C
2.501
2.500
25°C
2.499
-40°C
2.498
2.497
3.0
3.5
4.0
4.5
5.0
5.5
Figure 3.
Figure 4.
Output Voltage Noise Spectrum
Power Supply Rejection Ratio vs Frequency
3.3V
2.0V
20
15
10
1.8V
5
0
10
100
1000
10000
COUT = 1 PF
70
60
PF
2.5V
50
0.1
3.0V
25
80
=
4.096V
30
90
40
OU
T
35
C
POWER SUPPLY REJECTION RATIO (dB)
OUTPUT NOISE VOLTAGE (PVrms/rt(Hz))
INPUT VOLTAGE (V)
30
No COUT
20
10
0
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 5.
Figure 6.
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Typical Performance Characteristics for 2.5V (continued)
Dropout vs Load to 0.5% Accuracy
Typical Long Term Stability
600
200
1 TYPICAL UNIT FROM EACH
VOLTAGE OPTION
100
DRIFT (ppm)
°C
400
25
VDROPOUT (mV)
12
5°
C
150
°C
-4 0
200
50
0
-50
-100
-150
0
0
5
10
15
-200
20
0
200
400
600
800
1000
LOAD CURRENT (mA)
TIME (Hours)
Figure 7.
Figure 8.
Supply Current vs Input Voltage
Shutdown IQ vs Input Voltage
100
5.0
4.5
80
SHUTDOWN IQ (PA)
SUPPLY CURRENT (PA)
90
70
60
50
40
30
20
125°C
4.0
25°C
3.5
3.0
-40°C
2.5
10
2.0
2.0
0
0
1
2
3
4
5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 9.
Figure 10.
Ground Current vs Load Current
Line Transient Response VIN = 3V to 5V
100
GROUND CURRENT (PA)
90
125oC
80
25oC
70
60
50
-40oC
40
30
20
10
0
0
5
10
15
20
LOAD CURRENT (mA)
Figure 11.
10
Figure 12.
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LM4128, LM4128Q
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SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
Typical Performance Characteristics for 2.5V (continued)
Load Transient Response ILOAD = 0 to 10mA
Short-Circuit Protection and Recovery
Figure 13.
Figure 14.
Start-Up Response
Figure 15.
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APPLICATION INFORMATION
THEORY OF OPERATION
The foundation of any voltage reference is the band-gap circuit. While the reference in the LM4128 is developed
from the gate-source voltage of transistors in the IC, principles of the band-gap circuit are easily understood
using a bipolar example. For a detailed analysis of the bipolar band-gap circuit, see the AN-56 Application Report
(SNVA514).
SUPPLY AND ENABLE VOLTAGES
To ensure proper operation, VEN and VIN must be within a specified range. An acceptable range of input voltages
is
VIN > VREF + 400 mV (ILOAD ≤ 10 mA)
(1)
The enable pin uses an internal pull-up current source (IPULL_UP ≊ 2 µA) that may be left floating or triggered by
an external source. If the part is not enabled by an external source, it may be connected to VIN. An acceptable
range of enable voltages is given by the enable transfer characteristics. See the Electrical Characteristics section
and Enable Transfer Characteristics figure for more detail. Note, the part will not operate correctly for VEN > VIN.
COMPONENT SELECTION
A small ceramic (X5R or X7R) capacitor on the input must be used to ensure stable operation. The value of CIN
must be sized according to the output capacitor value. The value of CIN must satisfy the relationship CIN ≥ COUT.
When no output capacitor is used, CIN must have a minimum value of 0.1 µF. Noise on the power-supply input
may affect the output noise. Larger input capacitor values (typically 4.7 µF to 22 µF) may help reduce noise on
the output and significantly reduce overshoot during startup. Use of an additional optional bypass capacitor
between the input and ground may help further reduce noise on the output. With an input capacitor, the LM4128
will drive any combination of resistance and capacitance up to VREF/20 mA and 10 µF respectively.
The LM4128 is designed to operate with or without an output capacitor and is stable with capacitive loads up to
10 µF. 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. The output capacitor should not be made arbitrarily
large because it will effect the turn-on time as well as line and load transients.
While a variety of capacitor chemistry types may be used, it is typically advisable to use low esr ceramic
capacitors. Such capacitors provide a low impedance to high frequency signals, effectively bypassing them to
ground. Bypass capacitors should be mounted close to the part. Mounting bypass capacitors close to the part will
help reduce the parasitic trace components thereby improving performance.
SHORT CIRCUITED OUTPUT
The LM4128 features indefinite short circuit protection. This protection limits the output current to 75 mA when
the output is shorted to ground.
TURN ON TIME
Turn on time is defined as the time taken for the output voltage to rise to 90% of the preset value. The turn on
time depends on the load. The turn on time is typically 33.2 µs when driving a 1µF load and 78.8 µs when driving
a 10 µF load. Some users may experience an extended turn on time (up to 10 ms) under brown out conditions
and low temperatures (-40°C).
THERMAL HYSTERESIS
Thermal hysteresis is defined as the change in output voltage at 25ºC after some deviation from 25ºC. This is to
say that thermal hysteresis is the difference in output voltage between two points in a given temperature profile.
An illustrative temperature profile is shown in Figure 16.
12
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125°C
VREF1
25°C
Time
VREF2
-40°C
Figure 16. Illustrative Temperature Profile
This may be expressed analytically as the following:
lVREF1 - VREF2l
x 103 mV
VHYS =
VREF
where
•
•
•
•
VHYS = Thermal hysteresis expressed in ppm
VREF = Nominal preset output voltage
VREF1 = VREF before temperature fluctuation
VREF2 = VREF after temperature fluctuation
(2)
The LM4128 features a low thermal hysteresis of 190 µV from -40°C to 125°C.
TEMPERATURE COEFFICIENT
Temperature drift is defined as the maximum deviation in output voltage over the operating temperature range.
This deviation over temperature may be illustrated as shown in Figure 17.
Temperature
Change in Output Voltage
Voltage
VREF_MAX
VREF_MIN
Temperature Range
Figure 17. Illustrative Temperature Coefficient Profile
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Temperature coefficient may be expressed analytically as the following:
(VREF_MAX - VREF_MIN)
x 106 ppm
TD =
VREF x 'T
where
•
•
•
•
•
TD = Temperature drift
VREF = Nominal preset output voltage
VREF_MIN = Minimum output voltage over operating temperature range
VREF_MAX = Maximum output voltage over operating temperature range
ΔT = Operating temperature range
(3)
The LM4128 features a low temperature drift of 75 ppm (max) to 100 ppm (max), depending on the grade, from 40°C to 125°C.
LONG TERM STABILITY
Long-term stability refers to the fluctuation in output voltage over a long period of time (1000 hours). The LM4128
features a typical long-term stability of 50 ppm over 1000 hours. The measurements are made using 5 units of
each voltage option, at a nominal input voltage (5V), with no load, at room temperature.
EXPRESSION OF ELECTRICAL CHARACTERISTICS
Electrical characteristics are typically expressed in mV, ppm, or a percentage of the nominal value. Depending
on the application, one expression may be more useful than the other. To convert one quantity to the other one
may apply the following:
ppm to mV error in output voltage:
VREF x ppmERROR
103
= VERROR
where
•
VREF is in volts (V) and VERROR is in milli-volts (mV)
(4)
Bit error (1 bit) to voltage error (mV):
VREF
2
n
x 103 = VERROR
where
•
•
•
VREF is in volts (V)
VERROR is in milli-volts (mV)
and n is the number of bits
(5)
mV to ppm error in output voltage:
VERROR
x 103 = ppmERROR
VREF
where
•
•
VREF is in volts (V)
VERROR is in milli-volts (mV)
(6)
Voltage error (mV) to percentage error (percent):
VERROR
x 0.1 = Percent_Error
VREF
where
•
•
14
VREF is in volts (V)
VERROR is in milli-volts (mV)
(7)
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PRINTED CIRCUIT BOARD and LAYOUT CONSIDERATIONS
References in SOT packages are generally less prone to PC board mounting than devices in Small Outline
(SOIC) packages. To minimize the mechanical stress due to PC board mounting 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.
The part may be isolated mechanically by cutting a U shape slot on the PCB for mounting the device. This
approach also provides some thermal isolation from the rest of the circuit.
Bypass capacitors must be mounted close to the part. Mounting bypass capacitors close to the part will reduce
the parasitic trace components thereby improving performance.
Typical Application Circuits
V REF
Input
VIN
VREF
C OUT
CIN
R
R
+5V
-VREF
LM4128
-5V
Enable
R/2
EN
GND
4.7 µF < C OUT < 10 µF
Figure 18. Voltage Reference with Complimentary Output
+5V
Input
VIN
VREF
CIN
LM4128
Enable
EN
VREF_FORCE
0.1 µF
100 k:
VREF_SENSE
GND
Figure 19. Precision Voltage Reference with Force and Sense Output
Input
VIN
Output
VREF
CIN
R1
500 :
LM4128
0.1 µF
Enable
EN
RSET
GND
I OUT
IOUT = (VREF/(R1 + RSET)) + IGND
IGND
RL
1 k:
Figure 20. Programmable Current Source
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SNVS475E – NOVEMBER 2006 – REVISED APRIL 2013
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REVISION HISTORY
Changes from Revision D (April 2013) to Revision E
•
16
Page
Changed layout of National Data Sheet to TI format .......................................................................................................... 15
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PACKAGE OPTION ADDENDUM
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30-Sep-2021
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
LM4128AMF-1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AA
LM4128AMF-2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BA
LM4128AMF-2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5CA
LM4128AMF-3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DA
LM4128AMF-3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5EA
LM4128AMF-4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5FA
LM4128AMFX-1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AA
LM4128AMFX-2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BA
LM4128AMFX-2.5/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5CA
LM4128AMFX-3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DA
LM4128AMFX-3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5EA
LM4128AMFX-4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
LM4128AQ1MF1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AA
LM4128AQ1MF2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BA
LM4128AQ1MF2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CA
LM4128AQ1MF3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DA
LM4128AQ1MF3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6EA
LM4128AQ1MF4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FA
LM4128AQ1MFX1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AA
LM4128AQ1MFX2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BA
Addendum-Page 1
R5FA
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
30-Sep-2021
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
LM4128AQ1MFX2.5/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CA
LM4128AQ1MFX3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DA
LM4128AQ1MFX3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6EA
LM4128AQ1MFX4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FA
LM4128BMF-1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AB
LM4128BMF-2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BB
LM4128BMF-2.5
NRND
SOT-23
DBV
5
1000
Non-RoHS
& Green
Call TI
Level-1-260C-UNLIM
-40 to 125
R5CB
LM4128BMF-2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5CB
LM4128BMF-3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DB
LM4128BMF-3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5EB
LM4128BMF-4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5FB
LM4128BMFX-1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AB
LM4128BMFX-2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BB
LM4128BMFX-2.5/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5CB
LM4128BMFX-3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DB
LM4128BMFX-3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5EB
LM4128BMFX-4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5FB
LM4128BQ1MF1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AB
LM4128BQ1MF2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BB
LM4128BQ1MF2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CB
LM4128BQ1MF3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DB
Addendum-Page 2
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
30-Sep-2021
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
LM4128BQ1MF3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6EB
LM4128BQ1MF4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FB
LM4128BQ1MFX1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AB
LM4128BQ1MFX2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BB
LM4128BQ1MFX2.5/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CB
LM4128BQ1MFX3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DB
LM4128BQ1MFX3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6EB
LM4128BQ1MFX4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FB
LM4128CMF-1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AC
LM4128CMF-2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BC
LM4128CMF-2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5CC
LM4128CMF-3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DC
LM4128CMF-3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5EC
LM4128CMF-4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5FC
LM4128CMFX-1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AC
LM4128CMFX-2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BC
LM4128CMFX-2.5/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5CC
LM4128CMFX-3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DC
LM4128CMFX-3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5EC
LM4128CMFX-4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5FC
LM4128CQ1MF1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AC
Addendum-Page 3
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
30-Sep-2021
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
LM4128CQ1MF2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BC
LM4128CQ1MF2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CC
LM4128CQ1MF3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DC
LM4128CQ1MF3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6EC
LM4128CQ1MF4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FC
LM4128CQ1MFX1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AC
LM4128CQ1MFX2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BC
LM4128CQ1MFX2.5/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CC
LM4128CQ1MFX3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DC
LM4128CQ1MFX3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6EC
LM4128CQ1MFX4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FC
LM4128DMF-1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AD
LM4128DMF-2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BD
LM4128DMF-2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5CD
LM4128DMF-3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DD
LM4128DMF-3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5ED
LM4128DMF-4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5FD
LM4128DMFX-1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5AD
LM4128DMFX-2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5BD
LM4128DMFX-3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5DD
LM4128DMFX-3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5ED
Addendum-Page 4
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
30-Sep-2021
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
LM4128DMFX-4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R5FD
LM4128DQ1MF1.8/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AD
LM4128DQ1MF2.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BD
LM4128DQ1MF2.5/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CD
LM4128DQ1MF3.0/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DD
LM4128DQ1MF3.3/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6ED
LM4128DQ1MF4.1/NOPB
ACTIVE
SOT-23
DBV
5
1000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FD
LM4128DQ1MFX1.8/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6AD
LM4128DQ1MFX2.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6BD
LM4128DQ1MFX2.5/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6CD
LM4128DQ1MFX3.0/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6DD
LM4128DQ1MFX3.3/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6ED
LM4128DQ1MFX4.1/NOPB
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 125
R6FD
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of