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R
S
V
DD
V
OUT
= ADJ
LM4051-ADJ
R
1
R
2
R
S
V
DD
V
OUT
= 1.225 V
Cathode
LM4051-1.2
Anode
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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.
LM4051-N
SNOS491D –FEBRUARY 2000–REVISED SEPTEMBER 2018
LM4051-N Precision Micropower Shunt Voltage Reference
1
1 Features
1
• No Output Capacitor Required
• Tolerates Capacitive Loads
• Reverse Breakdown Voltage Options of 1.225 V
and Adjustable
• Key Specifications:
– Output Voltage Tolerance (A Grade, 25 C) ±
0.1% (Maximum)
– Output Noise (10 Hz to 10 kHz) 20 μV rms
– Operating Current Range: 60 μA to 12 mA
– Industrial Temp. Range: −40 C to +85 C
– Extended Temp. Range: −40 C to +125 C
– Temperature Coefficient: 50 ppm/ C
(Maximum)
2 Applications
• Portable, Battery-Powered Equipment
• Data Acquisition Systems
• Instrumentation
• Process Control
• Energy Management
• Automotive and Industrial
• Precision Audio Components
• Base Stations
• Battery Chargers
• Medical Equipment
• Communication
3 Description
Ideal for space critical applications, the LM4051-N
precision voltage reference is available in the sub-
miniature (3 mm x 1.3 mm) SOT-23 surface-mount
package. The LM4051-N’s advanced design
eliminates the need for an external stabilizing
capacitor while ensuring 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 adjust- able reverse breakdown voltage.
The minimum operating current is 60 μA for the
LM4051-1.2 and the LM4051-ADJ. Both versions
have a maximum operating current of 12 mA.
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 guaranteed
from −40 C to 125 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.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
LM4051-N SOT-23 (3) 3.00 mm x 1.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
1.2 V
REF
Simplified Schematic Adjustable Reference Simplified Schematic
Verzeichnis
- ・ Konfiguration des Pinbelegungsdiagramms on Seite 3
- ・ Markierungsinformationen on Seite 19
- ・ Blockdiagramm on Seite 1 Seite 10
- ・ Typisches Anwendungsschaltbild on Seite 12 Seite 13 Seite 14
- ・ Technische Daten on Seite 1 Seite 3
- ・ Anwendungsbereich on Seite 1 Seite 12 Seite 13 Seite 14
- ・ Elektrische Spezifikation on Seite 4 Seite 5 Seite 6 Seite 12 Seite 13
