Datasheet

Input Output Voltage
Accuracy at 25°C And
Temperature Coefficient
LM4128 Supplied as
1000 units, Tape and
Reel
LM4128 Supplied as
3000 units, Tape and
Reel
Part Marking Feature
0.1%, 75 ppm/°C
(AQ grade)
LM4128AQ1MF1.8 LM4128AQ1MFX1.8 R6AA AEC-Q100 Grade 1
qualified. Automotive
Grade Production Flow*
LM4128AQ1MF2.0 LM4128AQ1MFX2.0 R6BA
LM4128AQ1MF2.5 LM4128AQ1MFX2.5 R6CA
LM4128AQ1MF3.0 LM4128AQ1MFX3.0 R6DA
LM4128AQ1MF3.3 LM4128AQ1MFX3.3 R6EA
LM4128AQ1MF4.1 LM4128AQ1MFX4.1 R6FA
0.2%, 75 ppm/°C
(BQ grade)
LM4128BQ1MF1.8 LM4128BQ1MFX1.8 R6AB AEC-Q100 Grade 1
qualified. Automotive
Grade Production Flow*
LM4128BQ1MF2.0 LM4128BQ1MFX2.0 R6BB
LM4128BQ1MF2.5 LM4128BQ1MFX2.5 R6CB
LM4128BQ1MF3.0 LM4128BQ1MFX3.0 R6DB
LM4128BQ1MF3.3 LM4128BQ1MFX3.3 R6EB
LM4128BQ1MF4.1 LM4128BQ1MFX4.1 R6FB
0.5%, 100 ppm/°C
(CQ grade)
LM4128CQ1MF1.8 LM4128CQ1MFX1.8 R6AC AEC-Q100 Grade 1
qualified. Automotive
Grade Production Flow*
LM4128CQ1MF2.0 LM4128CQ1MFX2.0 R6BC
LM4128CQ1MF2.5 LM4128CQ1MFX2.5 R6CC
LM4128CQ1MF3.0 LM4128CQ1MFX3.0 R6DC
LM4128CQ1MF3.3 LM4128CQ1MFX3.3 R6EC
LM4128CQ1MF4.1 LM4128CQ1MFX4.1 R6FC
1.0%, 100 ppm/°C max
(DQ grade)
LM4128DQ1MF1.8 LM4128DQ1MFX1.8 R6AD AEC-Q100 Grade 1
qualified. Automotive
Grade Production Flow*
LM4128DQ1MF2.0 LM4128DQ1MFX2.0 R6BD
LM4128DQ1MF2.5 LM4128DQ1MFX2.5 R6CD
LM4128DQ1MF3.0 LM4128DQ1MFX3.0 R6DD
LM4128DQ1MF3.3 LM4128DQ1MFX3.3 R6ED
LM4128DQ1MF4.1 LM4128DQ1MFX4.1 R6FD
*Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for the automotive market, including defect detection methodologies.
Reliability qualification is compliant with the requirements and temperature grades defined in the AEC-Q100 standard. Automotive grade products are identified
with the letter Q. For more information go to http://www.national.com/automotive.
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
3 www.national.com
LM4128/LM4128Q