Datasheet

LM3490
SNVS012E –JUNE 1999–REVISED APRIL 2013 www.ti.com
ELECTRICAL CHARACTERISTICS LM3490-12, LM3490-15
V
IN
= V
NOM
+ 1.5V unless otherwise noted. Typicals and limits appearing in normal type apply for T
A
= T
J
= 25°C. Limits
appearing in boldface type apply over the entire junction temperature range for operation, −40 to +125°C
(1)(2)(3)
Nominal Output Voltage (V
NOM
) 12V 15V
Units
Symbol Parameter Conditions Typical Limit Typical Limit
V
OUT
Output Voltage 1 mA ≤ I
OUT
≤ 100 mA 12.00 15.00 V
11.52 14.40 V(min)
11.40 14.25 V(min)
12.48 15.60 V(max)
12.60 15.75 V(max)
ΔV
OUT
Line Regulation V
NOM
+ 1.5V ≤ V
IN
≤ 30V, 14 16 mV
I
OUT
= 1 mA 40 40 mV(max)
ΔV
OUT
Load Regulation 10 mA ≤ I
OUT
≤ 100 mA 36 45 mV
60 75 mV(max)
I
GND
Ground Pin Current V
NOM
+ 1.5V ≤ V
IN
≤ 30V,
No Load
V
ON/OFF
= 5V 2 2 mA
4 4 mA(max)
V
ON/OFF
= 0V 0.1 0.1 µA
5 5 µA(max)
V
IN
- Dropout Voltage I
OUT
= 10 mA 0.7 0.7 V
V
OUT
0.9 0.9 V(max)
1.0 1.0 V(max)
I
OUT
= 100 mA 0.9 0.9 V
1.1 1.1 V(max)
1.2 1.2 V(max)
e
n
Output Noise V
IN
= 10V, 360 450 µV
rms
Voltage Bandwidth: 10 Hz to 100 kHz
V
IL
Maximum Low Level 0.2 0.2 V(max)
Input Voltage at
ON/OFF
V
IH
Minimum High Level 2.0 2.0 V(min)
Input Voltage at
ON/OFF
I
IL
V
ON/OFF
= 0V −1 −1 µA(max)
I
IH
V
ON/OFF
= 5V 1 1 µA
20 20 µA(max)
(1) A typical is the center of characterization data taken with T
A
= T
J
= 25°C. Typicals are not ensured.
(2) All limits are specified. All electrical characteristics having room-temperature limits are tested during production with T
A
= T
J
= 25°C. All
hot and cold limits are specified by correlating the electrical characteristics to process and temperature variations and applying statistical
process control.
(3) All voltages except dropout are with respect to the voltage at the GND pin.
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