LT1761 Series
ELECTRICAL CHARACTERISTICS
The
q
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25°C. (Note 2)
PARAMETER
Load Regulation
CONDITIONS
LT1761-3.3
V
IN
= 4.3V,
∆I
LOAD
= 1mA to 50mA
V
IN
= 4.3V,
∆I
LOAD
= 1mA to 50mA
V
IN
= 4.3V,
∆I
LOAD
= 1mA to 100mA
V
IN
= 4.3V,
∆I
LOAD
= 1mA to 100mA
V
IN
= 6V,
∆I
LOAD
= 1mA to 50mA
V
IN
= 6V,
∆I
LOAD
= 1mA to 50mA
V
IN
= 6V,
∆I
LOAD
= 1mA to 100mA
V
IN
= 6V,
∆I
LOAD
= 1mA to 100mA
q
MIN
TYP
10
20
MAX
20
40
40
100
30
60
65
150
6
12
12
50
0.15
0.19
0.22
0.29
0.28
0.38
0.35
0.45
45
100
400
2
4
100
2
0.5
3
0.1
UNITS
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
V
V
V
V
V
V
V
µA
µA
µA
mA
mA
µV
RMS
nA
V
V
µA
µA
µA
dB
mA
mA
q
LT1761-5
15
q
25
q
LT1761 (Note 3) V
IN
= 2.3V,
∆I
LOAD
= 1mA to 50mA
V
IN
= 2.3V,
∆I
LOAD
= 1mA to 50mA
V
IN
= 2.3V,
∆I
LOAD
= 1mA to 100mA
V
IN
= 2.3V,
∆I
LOAD
= 1mA to 100mA
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 5, 6, 11)
I
LOAD
= 1mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 50mA
I
LOAD
= 100mA
I
LOAD
= 100mA
GND Pin Current
V
IN
= V
OUT(NOMINAL)
(Notes 5, 7)
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 100mA
C
OUT
= 10µF, C
BYP
= 0.01µF, I
LOAD
= 100mA, BW = 10Hz to 100kHz
(Notes 3, 8)
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V
V
SHDN
= 20V
V
IN
= 6V, V
SHDN
= 0V
V
IN
– V
OUT
= 1.5V (Avg), V
RIPPLE
= 0.5V
P-P
, f
RIPPLE
= 120Hz,
I
LOAD
= 50mA
V
IN
= 7V, V
OUT
= 0V
V
IN
= V
OUT(NOMINAL)
+ 1V,
∆V
OUT
= – 5%
V
IN
= – 20V, V
OUT
= 0V
LT1761-1.5
V
OUT
= 1.5V, V
IN
< 1.5V
LT1761-1.8
V
OUT
= 1.8V, V
IN
< 1.8V
LT1761-2
V
OUT
= 2V, V
IN
< 2V
LT1761-2.5
V
OUT
= 2.5V, V
IN
< 2.5V
LT1761-2.8
V
OUT
= 2.8V, V
IN
< 2.8V
LT1761-3
V
OUT
= 3V, V
IN
< 3V
LT1761-3.3
V
OUT
= 3.3V, V
IN
< 3.3V
LT1761-5
V
OUT
= 5V, V
IN
< 5V
LT1761 (Note 3) V
OUT
= 1.22V, V
IN
< 1.22V
1
q
1
q
0.10
q
0.17
q
0.24
q
0.30
q
q
q
q
q
q
20
55
230
1
2.2
20
30
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
SHDN Pin Current
(Note 9)
Quiescent Current in Shutdown
Ripple Rejection (Note 3)
Current Limit
Input Reverse Leakage Current
Reverse Output Current
(Note 10)
q
q
q
q
0.25
0.8
0.65
0
1
0.01
55
65
200
q
q
110
1
10
10
10
10
10
10
10
10
5
20
20
20
20
20
20
20
20
10
mA
µA
µA
µA
µA
µA
µA
µA
µA
µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
The LT1761 regulators are tested and specified under pulse load
conditions such that T
J
≈
T
A
. The LT1761 is 100% production tested at
T
A
= 25°C. Performance at – 40°C and 125°C is assured by design,
characterization and correlation with statistical process controls.
Note 3:
The LT1761 (adjustable versions) are tested and specified for
these conditions with the ADJ pin connected to the OUT pin.
4
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