1 Features
• No output capacitor required
• Tolerates capacitive loads
• Reverse breakdown voltage options of 1.225V and
adjustable
• Key specifications:
– Output voltage tolerance (A Grade, 25 ̊C) ±
0.1% (maximum)
– Output noise (10Hz to 10kHz) 20μVrms
– Operating current range: 60μA to 12mA
– Industrial temp. range: −40 ̊C to +85 ̊C
– Extended temp. range: −40 ̊C to +125 ̊C
– Temperature coefficient: 50ppm/ ̊C (maximum)

2 Applications
• Battery-Powered Equipment
• Data-Acquisition Systems
• Instrumentation and Test Equipment
• Process Control
• Energy Management/Metering
• Automotive Electronics
• Precision Audio
• Base Stations
• Battery Chargers
• Medical Equipment
• Communication

3 Description
Designed for space critical applications, the LM4051-
N precision voltage reference is available in the
sub-miniature (3mm x 1.30mm) SOT-23 surface
mount package. The LM4051-N’s advanced design
eliminates the need for an external stabilizing
capacitor while maintaining stability with any
capacitive load, thus making the LM4051-N easy to
use. Further reducing design effort is the availability
of a fixed (1.225V) and adjustable reverse breakdown
voltage. The minimum operating current is 60μA for
the LM4051-1.2 and the LM4051-ADJ. Both versions
have a maximum operating current of 12mA.
The LM4051-N comes in three grades (A, B, and C).
The best grade devices (A) have an initial accuracy of
0.1%, while the B-grade have 0.2% and the C-grade
0.5%, all with a tempco of 50 ppm/ ̊C designed for
−40°C to 125̊°C.
The LM4051-N utilizes fuse and zener-zap trim of
reference voltage during wafer sort to ensure that the
prime parts have an accuracy of better than ± 0.1% (A
grade) at 25°C.