Datasheet

LM4120
www.ti.com SNVS049C –FEBRUARY 2000–REVISED APRIL 2013
Electrical Characteristics
LM4120-3.0V, 3.3V, 4.096V and 5.0V (continued)
Unless otherwise specified V
IN
= V
OUT
+ 1V, I
LOAD
= 0, C
OUT
= 0.01µF, T
A
= T
j
= 25°C. Limits with standard typeface are for T
j
= 25°C, and limits in boldface type apply over the −40°C ≤ T
A
≤ +85°C temperature range.
Symbol Parameter Conditions Min
(1)
Typ
(2)
Max
(1)
Units
Output Voltage Initial
Accuracy
LM4120A-3.000
±0.2 %
LM4120A-3.300
LM4120A-4.096
V
OUT
LM4120A-5.000
LM4120-3.000
LM4120-3.300
±0.5 %
LM4120-4.096
LM4120-5.000
TCV
OUT
/°C Temperature −40°C ≤ T
A
≤ +125°C 14 50 ppm/°c
Coefficient
ΔV
OUT
/ΔV
IN
Line Regulation (V
OUT
+ 1V) ≤ V
IN
≤ 12V 0.0007 0.008
%/V
0.01
0 mA ≤ I
LOAD
≤ 1 mA 0.03 0.08
0.17
1 mA ≤ I
LOAD
≤ 5 mA 0.01 0.04
ΔV
OUT
/ΔI
LOAD
Load Regulation %/mA
0.1
−1 mA ≤ I
LOAD
≤ 0 mA 0.04 0.12
−5 mA ≤ I
LOAD
≤ −1 mA 0.01
I
LOAD
= 0 mA 45 65
80
I
LOAD
= +1 mA 120 150
V
IN
−V
OUT
Dropout Voltage
(3)
mV
180
I
LOAD
= +5 mA 180 210
250
V
N
Output Noise Voltage 0.1 Hz to 10 Hz 20 µV
PP
(4)
10 Hz to 10 kHz 36 µV
PP
I
S
Supply Current 160 250 µA
275
I
SS
Power-down Supply Enable = 0.4V 1
Current −40°C ≤ T
J
≤ +85°C 2 µA
Enable = 0.2V
V
H
Logic High Input 2.4 V
Voltage
2.4
V
L
Logic Low Input 0.4 V
Voltage
0.2
I
H
Logic High Input 7 15 µA
Current
I
L
Logic Low Input 0.1 µA
Current
V
OUT
= 0 15
6 30
I
SC
Short Circuit Current mA
V
IN
= 12V, V
OUT
= 0 17
6 30
(1) Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control (SQC) methods. The limits are used to calculate TI's Averaging Outgoing Quality Level (AOQL).
(2) Typical numbers are at 25°C and represent the most likely parametric norm.
(3) Dropout voltage is the differential voltage between V
OUT
and V
IN
at which V
OUT
changes ≤ 1% from V
OUT
at V
IN
= 3.3V for 1.8V, 2.0V,
2.5V and V
OUT
+ 1V for others.For 1.8V option, dropout voltage is not ensured over temperature. A parasitic diode exists between input
and output pins; it will conduct if V
OUT
is pulled to a higher voltage than V
IN
.
(4) Output noise voltage is proportional to V
OUT
. V
N
for other voltage option is calculated using (V
N(1.8V)
/1.8) * V
OUT
. V
N
(2.5V) =
(36µV
PP
/1.8) * 2.5 = 46µV
PP
.
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