Datasheet
LT3022/LT3022-1.2
LT3022-1.5/LT3022-1.8
4
3022fb
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage (Notes 4, 6) I
LOAD
= 1A, T
A
> 0°C
I
LOAD
= 1A, T
A
≤ 0°C
0.9
0.9
1.05
1.10
V
V
ADJ Pin Voltage (Notes 5, 6) V
IN
= 1.5V, I
LOAD
= 1mA
1.15V < V
IN
< 10V, 1mA < I
LOAD
< 1A
l
196
194
200
200
204
206
mV
mV
Regulated Output Voltage (Note 5)
LT3022-1.2 V
IN
= 1.5V, I
LOAD
= 1mA
1.5V < V
IN
< 10V, 1mA < I
LOAD
<1A
l
1.176
1.164
1.200
1.200
1.224
1.236
V
V
LT3022-1.5 V
IN
= 1.8V, I
LOAD
= 1mA
1.8V < V
IN
< 10V, 1mA < I
LOAD
<1A
l
1.470
1.455
1.500
1.500
1.530
1.545
V
V
LT3022-1.8 V
IN
= 2.1V, I
LOAD
= 1mA
2.1V < V
IN
< 10V, 1mA < I
LOAD
<1A
l
1.764
1.746
1.800
1.800
1.836
1.854
V
V
Line Regulation (Note 7)
LT3022 ∆V
IN
= 1.15V to 10V, I
LOAD
= 1mA
LT3022-1.2 ∆V
IN
= 1.5V to 10V, I
LOAD
= 1mA
LT3022-1.5 ∆V
IN
= 1.8V to 10V, I
LOAD
= 1mA
LT3022-1.8 ∆V
IN
= 2.1V to 10V, I
LOAD
= 1mA
l
l
l
l
–1.5
–9
–11
–13.5
–0.1
0.6
0.8
1
0.5
3.5
4
5
mV
mV
mV
mV
Load Regulation (Note 7)
LT3022 V
IN
= 1.15V, ∆I
LOAD
= 1mA to 1A
l
–0.5
–1.0
0.1 0.5
1.0
mV
mV
LT3022-1.2 V
IN
= 1.5V, ∆I
LOAD
= 1mA to 1A
l
–3
–6
0.6 3
6
mV
mV
LT3022-1.5 V
IN
= 1.8V, ∆I
LOAD
= 1mA to 1A
l
–3.8
–7.5
1 3.8
7.5
mV
mV
LT3022-1.8 V
IN
= 2.1V, ∆I
LOAD
= 1mA to 1A
l
–4.5
–9
1.2 4.5
9
mV
mV
Dropout Voltage (Notes 8, 9) I
LOAD
= 10mA
l
45 75
135
mV
mV
I
LOAD
= 100mA
l
55 90
175
mV
mV
I
LOAD
= 500mA
l
110 150
235
mV
mV
I
LOAD
= 1A
l
145 185
285
mV
mV
GND Pin Current, V
IN
= V
OUT(NOMINAL)
+ 0.4V
(Notes 9, 10)
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 100mA
I
LOAD
= 500mA
I
LOAD
= 1A
l
l
l
l
400
1.2
3.4
8.3
18
3.5
8.5
20
36
µA
mA
mA
mA
mA
Output Voltage Noise C
OUT
= 10µF, I
LOAD
= 1A, BW = 10Hz to 100kHz,
V
OUT
= 1.2V
165 µV
RMS
ADJ Pin Bias Current (Notes 7, 11) V
ADJ
= 0.2V, V
IN
= 1.5V 30 100 nA
Shutdown Threshold V
OUT
= Off to On
V
OUT
= On to Off
l
l
0.25
0.64
0.64
0.9 V
V
SHDN Pin Current (Note 12) V
SHDN
= 0V, V
IN
= 10V
V
SHDN
= 10V, V
IN
= 10V
l
l
3
±1
9.5
µA
µA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V 7.5 15 µA