Datasheet

LM4120
SNVS049C –FEBRUARY 2000–REVISED APRIL 2013 www.ti.com
Electrical Characteristics
LM4120-1.8V, 2.048V and 2.5V (continued)
Unless otherwise specified V
IN
= 3.3V, 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
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
0.2
Voltage
I
H
Logic High Input 7 15 µA
Current
I
L
Logic Low Input 0.1 µA
Current
V
IN
= 3.3V, V
OUT
= 0 15
6 30
I
SC
Short Circuit Current mA
V
IN
= 12V, V
OUT
= 0 17
6 30
Hyst Thermal Hysteresis −40°C ≤ T
A
≤ 125°C 0.5 mV/V
(5)
ΔV
OUT
Long Term Stability 1000 hrs. @ 25°C 100 ppm
(6)
(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
.
(5) Thermal hysteresis is defined as the change in +25°C output voltage before and after exposing the device to temperature extremes.
(6) Long term stability is change in V
REF
at 25°C measured continuously during 1000 hrs.
Electrical Characteristics
LM4120-3.0V, 3.3V, 4.096V and 5.0V
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.
4 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated
Product Folder Links: LM4120