Datasheet

LT3030
3
3030fa
For more information www.linear.com/LT3030
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C (Note 2).
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage (Notes 3, 11) Output 1, I
LOAD
= 750mA
Output 2, I
LOAD
= 250mA
l
l
1.7
1.7
2.2
2.2
V
V
ADJ1, ADJ2 Pin Voltage (Notes 3, 4) V
IN
= 2V, I
LOAD
= 1mA
Output 1, 2.2V < V
IN1
< 20V, 1mA < I
LOAD
< 750mA
Output 2, 2.2V < V
IN2
< 20V, 1mA < I
LOAD
< 250mA
l
l
1.208
1.196
1.196
1.220
1.220
1.220
1.232
1.244
1.244
V
V
V
Line Regulation (Note 3) ∆V
IN
= 2V to 20V, I
LOAD
= 1mA
l
0.5 5 mV
Load Regulation (Note 3) Output 1, V
IN1
= 2.2V, ∆I
LOAD
= 1mA to 750mA
V
IN1
= 2.2V, ∆I
LOAD
= 1mA to 750mA
l
2 6
10
mV
mV
Output 2, V
IN2
= 2.2V, ∆I
LOAD
= 1mA to 250mA
V
IN2
= 2.2V, ∆I
LOAD
= 1mA to 250mA
l
2 6
10
mV
mV
Dropout Voltage (Output 1)
V
IN1
= V
OUT1(NOMINAL)
(Notes 5, 6, 11)
I
LOAD
= 10mA
I
LOAD
= 10mA
l
0.13 0.20
0.28
V
V
I
LOAD
= 100mA
I
LOAD
= 100mA
l
0.17 0.23
0.33
V
V
I
LOAD
= 500mA
I
LOAD
= 500mA
l
0.27 0.32
0.43
V
V
I
LOAD
= 750mA
I
LOAD
= 750mA
l
0.3 0.36
0.48
V
V
Dropout Voltage (Output 2)
V
IN2
= V
OUT2(NOMINAL)
(Notes 5, 6, 11)
I
LOAD
= 10mA
I
LOAD
= 10mA
l
0.14 0.20
0.28
V
V
I
LOAD
= 50mA
I
LOAD
= 50mA
l
0.18 0.24
0.32
V
V
I
LOAD
= 100mA
I
LOAD
= 100mA
l
0.22 0.28
0.38
V
V
I
LOAD
= 250mA
I
LOAD
= 250mA
l
0.3 0.36
0.48
V
V
GND Pin Current (Output 1)
V
IN1
= V
OUT1(NOMINAL)
(Notes 5, 7)
I
LOAD
= 0mA
I
LOAD
= 10mA
I
LOAD
= 100mA
I
LOAD
= 500mA
I
LOAD
= 750mA
l
l
l
l
l
120
420
2
9
15
300
800
3.8
17
27
μA
μA
mA
mA
mA
GND Pin Current (Output 2)
V
IN2
= V
OUT2(NOMINAL)
(Notes 5, 7)
I
LOAD
= 0mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 100mA
I
LOAD
= 250mA
l
l
l
l
l
75
330
1
1.8
5
200
600
1.8
3.4
9
μA
μA
mA
mA
mA
Output Voltage Noise C
OUT
= 10μF, C
BYP
= 10nF, I
LOAD
= Full Current (Note 13)
BW = 10Hz to 100kHz
20 μV
RMS
ADJ1/ADJ2 Pin Bias Current (Notes 3, 8) 30 100 nA
Shutdown Threshold V
OUT
= Off to On
V
OUT
= On to Off
Hysteresis (Note 2)
l
l
1.09
0.5
1.21
0.83
0.38
1.33 V
V
V
SHDN1/SHDN2 Pin Current (Note 10) V
SHDN1
, V
SHDN2
= 0V
V
SHDN1
, V
SHDN2
= 20V
l
l
0
0.85
0.5
3
μA
μA
Quiescent Current in Shutdown (per Channel) V
IN
= 20V, V
SHDN1
= 0V, V
SHDN2
= 0V 0.3 2 μA
PWRGD Trip Point % of Nominal Output Voltage, Output Rising
l
86 90 94 %
PWRGD Trip Point Hysteresis (Note 2) % of Nominal Output Voltage, Output Falling 1.6 %
PWRGD Output Low Voltage I
PWRGD
= 100μA
l
15 150 mV
PWRGD Leakage Current V
SHDN
= 0V, V
PWRGD
= 20V
l
1 μA