LM4050-N_15 Datasheet, PDF (1/42 Pages) Texas Instruments – Precision Micropower Shunt Voltage Reference

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LM4050-N, LM4050-N-Q1
SNOS455G – MAY 2000 – REVISED SEPTEMBER 2015
LM4050-N/-Q1 Precision Micropower Shunt Voltage Reference
1 Features
•1 Small Package: SOT-23
• No Output Capacitor Required
• Tolerates Capacitive Loads
• Fixed Reverse Breakdown Voltages of 2.048 V,
2.5 V, 4.096 V, 5 V, 8.192 V, and 10 V
• Key Specifications (LM4050-N)
– Output Voltage Tolerance (A Grade, 25°C)
±0.1% (Maximum)
– Low Output Noise (10 Hz to 10 kHz) 41 μVrms
(Typical)
– Wide Operating Current Range 60 μA to 15
mA
– Industrial Temperature Range −40°C to 85°C
– Extended Temperature Range −40°C to 125°C
– Low Temperature Coefficient 50 ppm/°C (max)
– LM4050-N-Q1 is AEC-Q100 Grade 1 Qualified
and are Manufactured on an Automotive
Grade Flow
2 Applications
• Portable, Battery-Powered Equipment
• Data Acquisition Systems
• Instrumentation
• Process Control
• Energy Management
• Product Testing
• Automotive
• Precision Audio Components
3 Description
Ideal for space-critical applications, the LM4050-N
precision voltage reference is available in the sub-
miniature (3 mm × 1.3 mm) SOT-23 surface-mount
package. The LM4050-N design eliminates the need
for an external stabilizing capacitor while ensuring
stability with any capacitive load, thus making the
LM4050-N easy to use. Further reducing design effort
is the availability of several fixed reverse breakdown
voltages: 2.048 V, 2.5 V, 4.096 V, 5 V, 8.192 V, and
10 V. The minimum operating current increases from
60 μA for the LM4050-N-2.0 to 100 μA for the
LM4050-N-10.0. All versions have a maximum
operating current of 15 mA.
The LM4050-N utilizes fuse and Zener-zap reverse
breakdown voltage trim during wafer sort to ensure
that the prime parts have an accuracy of better than
±0.1% (A grade) 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.
All grades and voltage options of the LM4050-N are
available in both an industrial temperature range
(−40°C and 85°C) and an extended temperature
range (−40°C and 125°C).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM4050-N
LM4050-N-Q1
SOT-23 (3)
2.92 mm × 1.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Shunt Regulator Schematic
I_Q+I_L
I_L
Vs
Vout
Rs
Cathode
I_Q
Anode
Cout
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.