Datasheet

LT1962 Series
3
1962fa1962fb
For more information www.linear.com/LT1962
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
elecTrical characTerisTics
PARAMETER CONDITIONS MIN TYP MAX UNITS
ADJ Pin Voltage
(Notes 4, 5)
LT1962
V
IN
= 2V, I
LOAD
= 1mA
2.3V < V
IN
< 20V, 1mA < I
LOAD
< 300mA
l
1.208
1.190
1.220
1.220
1.232
1.250
V
V
Line Regulation LT1962
-1.5 ∆V
IN
= 2V to 20V, I
LOAD
= 1mA
LT1962-1.8
∆V
IN
= 2.3V to 20V, I
LOAD
= 1mA
LT1962-2.5
∆V
IN
= 3V to 20V, I
LOAD
= 1mA
LT1962-3
∆V
IN
= 3.5V to 20V, I
LOAD
= 1mA
LT1962-3.3
∆V
IN
= 3.8V to 20V, I
LOAD
= 1mA
LT1962-5
∆V
IN
= 5.5V to 20V, I
LOAD
= 1mA
LT1962 (Note 4)
∆V
IN
= 2V to 20V, I
LOAD
= 1mA
l
l
l
l
l
l
l
1
1
1
1
1
1
1
5
5
5
5
5
5
5
mV
mV
mV
mV
mV
mV
mV
Load
Regulation LT1962-1.5
V
IN
= 2.5V, ∆I
LOAD
= 1mA to 300mA
V
IN
= 2.5V, ∆I
LOAD
= 1mA to 300mA
l
3 8
15
mV
mV
LT1962-1.8
V
IN
= 2.8V, ∆I
LOAD
= 1mA to 300mA
V
IN
= 2.8V, ∆I
LOAD
= 1mA to 300mA
l
4 9
18
mV
mV
LT1962-2.5
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 300mA
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 300mA
l
5 12
25
mV
mV
LT1962-3
V
IN
= 4V, ∆I
LOAD
= 1mA to 300mA
V
IN
= 4V, ∆I
LOAD
= 1mA to 300mA
l
7 15
30
mV
mV
LT1962-3.3
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 300mA
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 300mA
l
7 17
33
mV
mV
LT1962-5
V
IN
= 6V, ∆I
LOAD
= 1mA to 300mA
V
IN
= 6V, ∆I
LOAD
= 1mA to 300mA
l
12 25
50
mV
mV
LT1962 (Note 4)
V
IN
= 2.3V, ∆I
LOAD
= 1mA to 300mA
V
IN
= 2.3V, ∆I
LOAD
= 1mA to 300mA
l
2 6
12
mV
mV
Dropout V
oltage
V
IN
= V
OUT(NOMINAL)
(Notes 6, 7, 12)
I
LOAD
= 10mA
I
LOAD
= 10mA
l
0.10 0.15
0.21
V
V
I
LOAD
= 50mA
I
LOAD
= 50mA
l
0.15 0.20
0.28
V
V
I
LOAD
= 100mA
I
LOAD
= 100mA
l
0.18 0.24
0.33
V
V
I
LOAD
= 300mA
I
LOAD
= 300mA
l
0.27 0.33
0.43
V
V
GND Pin Current
V
IN
= V
OUT(NOMINAL)
(Notes 6, 8)
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 50mA
I
LOAD
= 100mA
I
LOAD
= 300mA
l
l
l
l
l
30
65
1.1
2
8
75
120
1.6
3
12
µA
µA
mA
mA
mA
Output V
oltage Noise C
OUT
= 10µF, C
BYP
= 0.01µF, I
LOAD
= 300mA, BW = 10Hz to 100kHz 20 µV
RMS
ADJ Pin Bias Current (Notes 4, 9) 30 100 nA
Shutdown Threshold V
OUT
= Off to On
V
OUT
= On to Off
l
l
0.25
0.8
0.65
2 V
V
SHDN Pin Current
(Note 10)
V
SHDN
= 0V
V
SHDN
= 20V
0.01
1
0.5
5
µA
µA
Quiescent Current in Shutdown V
IN
= 6V, V
SHDN
= 0V 0.1 1 µA
Ripple Rejection V
IN
– V
OUT
= 1.5V (Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 300mA
55 65 dB
Current Limit V
IN
= 7V, V
OUT
= 0V
V
IN
= V
OUT(NOMINAL)
+ 1V, ∆V
OUT
= –0.1V
l
320
700 mA
mA
Input Reverse Leakage Current
V
IN
= –20V, V
OUT
= 0V
l
1 mA
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