Datasheet

Electrical Characteristics
LM4128-3.0 (V
OUT
= 3.0V) Limits in standard type are for T
J
= 25°C only, and limits in boldface type apply over
the junction temperature (T
J
) range of -40°C to +125°C unless otherwise specified. Minimum and Maximum limits are guaranteed
through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T
J
= 25°C, and are
provided for reference purposes only. Unless otherwise specified V
IN
= 5V and I
LOAD
= 0A.
Symbol Parameter Conditions Min
(Note 4)
Typ
(Note 5)
Max
(Note 4)
Unit
V
REF
Output Voltage Initial Accuracy
LM4128A-3.0 (A Grade - 0.1%) -0.1 +0.1 %
LM4128B-3.0 (B Grade - 0.2%) -0.2 +0.2
LM4128C-3.0 (C Grade - 0.5%) -0.5 +0.5
LM4128D-3.0 (D Grade - 1.0%) -1.0 +1.0
TCV
REF
/ °C (Note
6)
Temperature Coefficient LM4128A-3.0 75
ppm / °C
LM4128B-3.0 75
LM4128C-3.0 100
LM4128D-3.0 100
I
Q
Supply Current 60 100 µA
I
Q_SD
Supply Current in Shutdown EN = 0V 3 7 µA
ΔV
REF
/ΔV
IN
Line Regulation
V
REF
+ 400 mV ≤ V
IN
≤ 5.5V
70 ppm / V
ΔV
REF
/ΔI
LOAD
Load Regulation
0 mA ≤ I
LOAD
≤ 20 mA
25 120 ppm / mA
ΔV
REF
Long Term Stability (Note 7) 1000 Hrs 50 ppm
Thermal Hysteresis (Note 8)
-40°C ≤ T
J
≤ +125°C
75
V
IN
- V
REF
Dropout Voltage (Note 9) I
LOAD
= 10 mA 175 400 mV
V
N
Output Noise Voltage 0.1 Hz to 10 Hz 285 µV
PP
I
SC
Short Circuit Current 75 mA
V
IL
Enable Pin Maximum Low Input Level 35 %V
V
IH
Enable Pin Minimum High Input Level 65 %V
7 www.national.com
LM4128/LM4128Q