Datasheet
LT3024
3
3024fa
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage
(Notes 3, 11)
Output 2, I
LOAD
= 100mA
Output 1, I
LOAD
= 500mA
l
l
1.8
1.8
2.3
2.3
V
V
ADJ1, ADJ2 Pin Voltage
(Note 3, 4)
V
IN
= 2V, I
LOAD
= 1mA
Output 2, 2.3V < V
IN
< 20V, 1mA < I
LOAD
< 100mA
Output 1, 2.3V < V
IN
< 20V, 1mA < I
LOAD
< 500mA
l
l
1.205
1.190
1.190
1.220
1.220
1.220
1.235
1.250
1.250
V
V
V
Line Regulation (Note 3) ΔV
IN
= 2V to 20V, I
LOAD
= 1mA
l
110 mV
Load Regulation (Note 3) Output 2, V
IN
= 2.3V, ΔI
LOAD
= 1mA to 100mA
V
IN
= 2.3V, ΔI
LOAD
= 1mA to 100mA
l
112
25
mV
mV
Output 1, V
IN
= 2.3V, ΔI
LOAD
= 1mA to 500mA
V
IN
= 2.3V, ΔI
LOAD
= 1mA to 500mA
l
112
25
mV
mV
Dropout Voltage (Output 2)
V
IN
= V
OUT(NOMINAL)
(Notes 5, 6, 11)
I
LOAD
= 1mA
I
LOAD
= 1mA
l
0.10 0.15
0.19
V
V
I
LOAD
= 10mA
I
LOAD
= 10mA
l
0.17 0.22
0.29
V
V
I
LOAD
= 50mA
I
LOAD
= 50mA
l
0.24 0.31
0.40
V
V
I
LOAD
= 100mA
I
LOAD
= 100mA
l
0.30 0.35
0.45
V
V
Dropout Voltage (Output 1)
V
IN
= V
OUT(NOMINAL)
(Notes 5, 6, 11)
I
LOAD
= 10mA
I
LOAD
= 10mA
l
0.13 0.19
0.25
V
V
I
LOAD
= 50mA
I
LOAD
= 50mA
l
0.17 0.22
0.32
V
V
I
LOAD
= 100mA
I
LOAD
= 100mA
l
0.20 0.34
0.44
V
V
I
LOAD
= 500mA
I
LOAD
= 500mA
l
0.30 0.35
0.45
V
V
GND Pin Current (Output 2)
V
IN
= V
OUT(NOMINAL)
(Notes 5, 7)
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 100mA
l
l
l
l
l
20
55
230
1
2.2
45
90
400
2
4
μA
μA
μA
mA
mA
GND Pin Current (Output 1)
V
IN
= V
OUT(NOMINAL)
(Notes 5, 7)
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 50mA
I
LOAD
= 100mA
I
LOAD
= 250mA
I
LOAD
= 500mA
l
l
l
l
l
l
30
65
1.1
2
5
11
75
120
1.6
3
8
16
μA
μA
mA
mA
mA
mA
Output Voltage Noise C
OUT
= 10μF, C
BYP
= 0.01μF, I
LOAD
= Full Current,
BW = 10Hz to 100kHz
20 μV
RMS
ADJ Pin Bias Current ADJ1, ADJ2 (Notes 3, 8) 30 100 nA
Shutdown Threshold V
OUT
= Off to On
V
OUT
= On to Off
l
l
0.25
0.8
0.65
1.4 V
V
SHDN1/SHDN2 Pin Current
(Note 9)
V
SHDN1
, V
SHDN2
= 0V
V
SHDN1
, V
SHDN2
= 20V
l
l
0
1
0.5
3
μA
μA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN1
= 0V, V
SHDN2
= 0V 0.01 0.1 μA
Ripple Rejection V
IN
= 2.72V (Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= Full Current
55 65 dB