LM4431_15 Datasheet, PDF (1/14 Pages) Texas Instruments – Micropower Shunt Voltage Reference

LM4431
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SNVS103C – JUNE 2000 – REVISED APRIL 2013
LM4431 Micropower Shunt Voltage Reference
Check for Samples: LM4431
FEATURES
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•2 Small Package: SOT-23
• No Output Capacitor Required
• Tolerates Capacitive Loads
• Fixed Reverse Breakdown Voltage of 2.50V
APPLICATIONS
• Portable, Battery-Powered Equipment
• Data Acquisition Systems
• Instrumentation
• Process Control
• Energy Management
• Product Testing
• Power Supplies
DESCRIPTION
Ideal for space critical applications, the LM4431
voltage reference is available in the sub-miniature
(3 mm x 1.3 mm) SOT-23 surface-mount package.
The LM4431's advanced design eliminates the need
for an external stabilizing capacitor while ensuring
stability with any capacitive load, thus making the
LM4431 easy to use. The operating current range is
100 μA to 15 mA.
The LM4431 utilizes fuse and zener-zap reverse
breakdown voltage trim during wafer sort to ensure
that the parts have an accuracy of better than ±2.0%
at 25°C. Bandgap reference temperature drift
curvature correction and low dynamic impedance
ensure stable reverse breakdown voltage accuracy
over a wide range of operating temperatures and
currents.
KEY SPECIFICATIONS
• Output Voltage Tolerance: 25°C: ±2.0% (Max)
• Low Output Noise (10 Hz to 10 kHz): 35 μV_rms
(Typ)
• Wide Operating Current Range: 100 μA to 15
mA
• Commercial Temperature Range: 0 to +70 °C
• Low Temperature Coefficient: 30 ppm/°C (Typ)
Connection Diagram
Top View
* This pin must be left floating or connected to pin 2.
Figure 1. SOT-23 Package
See Package Number DBZ0003A
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.
1
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2
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.
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