Features: ` Small SOT23-5 package
` Low dropout voltage: 120 mV Typ @ 1 mA
` High output voltage accuracy: 0.2%
` Source and Sink current output: ±5 mA
` Supply current: 160 A Typ.
` Low Temperature Coefficient: 50 ppm/°C
` Fixed output voltages: 2.048, 2.5,and 4.096
` Industrial temperature Range: −40°C to +85°C
` (For extended temperature range, −40°C to 125°C,
contact National Semiconductor)Pinout
Specifications
| Initial Accuracy (+/-) Max |
0.2, 0.5 % |
| Reference Voltage |
2.5 V, 2.048 V |
| Tempco, max (ppm/C) |
50 ppm |
| Input Min Voltage |
3.3 Volt |
| Input Max Voltage |
6 Volt |
| Dropout Voltage |
0.180 Volt |
| Quiescent Current |
0.160 mA |
| Output Current |
5 mA |
| Voltage Noise (rms) |
20 uV |
| Long Term Stability (ppm/1000hr) |
100 ppm |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
| PowerWise |
Yes |
| View Using Catalog |
Maximum Voltage on input or
enable pins ................................−0.3V to 8V
Output Short-Circuit Duration ........................Indefinite
Power Dissipation (TA = 25°C) (Note 2):
MA05B package − JA ...........................280°C/W
Power Dissipation ..............................350 mW
ESD Susceptibility (Note 3)
Human Body Model ................................2 kV
Machine Model ..................................200V
Lead Temperature:
Soldering, (10 sec.) .............................+260°C
Vapor Phase (60 sec.) ............................+215°C
Infrared (15 sec.)...............................+220°C
DescriptionThe LM4125 is a precision low power low dropout bandgap voltage reference with up to 5 mA output current source and sink capability.
This series reference operates with input voltages as low as 2V and up to 6V consuming 160 µA (Typ.) supply current. In power down mode, device current drops to less than 2 µA.
The LM4125 comes in two grades (A and Standard) and three voltage options for greater flexibility. The best grade devices (A) have an initial accuracy of 0.2%, while the standard have an initial accuracy of 0.5%, both with a tempco of 50ppm/°C guaranteed from -40°C to +125°C.
The very low dropout voltage, low supply current and power-down capability of the LM4125 makes this product an ideal choice for battery powered and portable applications.
The device performance is guaranteed over the industrial temperature range (-40°C to +85°C), while certain specs are guaranteed over the extended temperature range (-40°C to +125°C). Please contact National for full specifications over the extended temperature range. The LM4125 is available in a standard 5-pin SOT-23 package.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LM4125AIM5-2.0 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125AIM5-2.5 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125AIM5-4.1 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125AIM5X-2.0 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125AIM5X-2.5 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125AIM5X-4.1 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125IM5-2.0 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125IM5-2.5 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125IM5-4.1 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125IM5X-2.0 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125IM5X-2.5 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
| LM4125IM5X-4.1 |
LFAST1 |
0 |
18610 |
0 |
0 |
2335000 |
2 |
662562625 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
More Application Notes
| Title |
Size in Kbytes |
Date |
|
| AN-1932: Application Note 1932 LMP2021MAEVAL - Bridge Sensor Instrumentation Amplifier Evaluation Board User Guide |
176 Kbytes |
10-Dec-08 |
Download |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
LM4125 Data Sheet
