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LM4130 Datasheet

Precision Micropower Low Dropout Voltage Reference

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November 1999
LM4130
Precision Micropower Low Dropout Voltage Reference
General Description
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.
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.
Series references provide lower power consumption than
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
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.
Features
n Small SOT23-5 package
n High output voltage accuracy
0.05%
n Low Temperature Coefficient
10 ppm/˚C
n Stable with capacitive loads to 100µF
n Low dropout voltage
275 mV @ 10 mA
n Supply Current
75 µA
n Full accuracy
−40˚C to 85˚C
n Extended operation to 125˚C
n Excellent load and line regulation
n Output current
20 mA
n Output impedance
< 1
n Voltage options:
2.048V, 2.500V, and 4.096V
Applications Summary
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
n Communications
n Medical equipment
n Servo systems
Connection Diagram and Pin Configuration
DS101046-1
*Optional, Recommended for improved transient response and
input noise reduction.
(See Application Information)
DS101046-2
Refer to the Ordering Information Table in this Data Sheet for Specific Part
Number
SOT23-5 Surface Mount Package
© 1999 National Semiconductor Corporation DS101046
www.national.com


National Semiconductor Electronic Components Datasheet

LM4130 Datasheet

Precision Micropower Low Dropout Voltage Reference

No Preview Available !

Ordering Information
Industrial Temperature Range (−40˚C to + 85˚C)
Initial Output Voltage Accuracy at 25˚C
And Temperature Coefficient
LM4130 Supplied as
1000 Units, Tape and
Reel
LM4130AIM5-2.0
0.05%, 10 ppm/˚C max (A grade)
LM4130AIM5-2.5
LM4130AIM5-4.1
LM4130BIM5-2.0
0.2%, 10 ppm/˚C max (B grade)
LM4130BIM5-2.5
LM4130BIM5-4.1
LM4130CIM5-2.0
0.1%, 20 ppm/˚C max (C grade)
LM4130CIM5-2.5
LM4130CIM5-4.1
LM4130DIM5-2.0
0.4%, 20 ppm/˚C max (D grade)
LM4130DIM5-2.5
LM4130DIM5-4.1
LM4130EIM5-2.0
0.5%, 30 ppm/˚C max (E grade)
LM4130EIM5-2.5
LM4130EIM5-4.1
LM4130 Supplied as
3000 Units, Tape and
Reel
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
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 = ±0.05%, 10ppm/˚C
B = ±0.2%, 10ppm/˚C
C = ±0.1%, 20ppm/˚C
D = ±0.4%, 20ppm/˚C
E = ±0.5%, 30ppm/˚C
Part Marking
R02A
R03A
R04A
R02B
R03B
R04B
R02C
R03C
R04C
R02D
R03D
R04D
R02E
R03E
R04E
www.national.com
2


Part Number LM4130
Description Precision Micropower Low Dropout Voltage Reference
Maker National Semiconductor
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LM4130 Datasheet PDF






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