(Note 2) ............................................. –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
TOP VIEW
OUT
SENSE/ADJ*
BYP
GND
1
2
3
4
8
7
6
5
IN
NC
NC
SHDN
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 125°C/W
*PIN 2: SENSE FOR LT1762-2.5/LT1762-3/LT1762-3.3/LT1762-5 AND ADJ FOR LT1762
SEE THE APPLICATIONS SECTION.
ORDER INFORMATION
LEAD FREE FINISH
LT1762EMS8#PBF
LT1762EMS8-2.5#PBF
LT1762EMS8-3#PBF
LT1762EMS8-3.3#PBF
LT1762EMS8-5#PBF
TAPE AND REEL
LT1762EMS8#TRPBF
LT1762EMS8-3#TRPBF
LT1762EMS8-5#TRPBF
PART MARKING*
LTHF
LTHH
LTHK
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
TEMPERATURE RANGE
−40°C to 125°C
−40°C to 125°C
−40°C to 125°C
−40°C to 125°C
−40°C to 125°C
LT1762EMS8-2.5#TRPBF LTHG
LT1762EMS8-3.3#TRPBF LTHJ
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
2
Rev B
For more information
www.analog.com
LT1762 Series
ELECTRICAL CHARACTERISTICS
PARAMETER
Minimum Operating Voltage
Regulated Output Voltage
(Note 4)
I
LOAD
= 150mA
LT1762-2.5
LT1762-3
LT1762-3.3
LT1762-5
ADJ Pin Voltage
(Notes 3, 4)
Line Regulation
LT1762
LT1762-2.5
LT1762-3
LT1762-3.3
LT1762-5
Load Regulation
V
IN
= 3V, I
LOAD
= 1mA
3.5V < V
IN
< 20V, 1mA < I
LOAD
< 150mA
V
IN
= 3.5V, I
LOAD
= 1mA
4V < V
IN
< 20V, 1mA < I
LOAD
< 150mA
V
IN
= 3.8V, I
LOAD
= 1mA
4.3V < V
IN
< 20V, 1mA < I
LOAD
< 150mA
V
IN
= 5.5V, I
LOAD
= 1mA
6V < V
IN
< 20V, 1mA < I
LOAD
< 150mA
V
IN
= 2V, I
LOAD
= 1mA
2.22V < V
IN
< 20V, 1mA < I
LOAD
< 150mA
∆V
IN
= 3V to 20V, I
LOAD
= 1mA
∆V
IN
= 3.5V to 20V, I
LOAD
= 1mA
∆V
IN
= 3.8V to 20V, I
LOAD
= 1mA
∆V
IN
= 5.5V to 20V, I
LOAD
= 1mA
l
l
l
l
l
l
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 2)
CONDITIONS
l
MIN
2.475
2.435
2.970
2.925
3.267
3.220
4.950
4.875
1.208
1.190
TYP
1.8
2.5
2.5
3
3
3.3
3.3
5
5
1.22
1.22
1
1
1
1
1
4
MAX
2.3
2.525
2.565
3.030
3.075
3.333
3.380
5.050
5.125
1.232
1.250
5
5
5
5
5
12
25
15
30
17
33
25
50
6
15
0.15
0.19
0.21
0.25
0.27
0.31
0.33
0.40
65
120
500
1.8
7
UNITS
V
V
V
V
V
V
V
V
V
V
V
mV
mV
mV
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
LT1762 (Note 3) ∆V
IN
= 2V to 20V, I
LOAD
= 1mA
LT1762-2.5
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 150mA
V
IN
= 3.5V, ∆I
LOAD
= 1mA to 150mA
LT1762-3
LT1762-3.3
LT1762-5
V
IN
= 4V, ∆I
LOAD
= 1mA to 150mA
V
IN
= 4V, ∆I
LOAD
= 1mA to 150mA
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 150mA
V
IN
= 4.3V, ∆I
LOAD
= 1mA to 150mA
V
IN
= 6V, ∆I
LOAD
= 1mA to 150mA
V
IN
= 6V, ∆I
LOAD
= 1mA to 150mA
LT1762 (Note 3) V
IN
= 2.22V, ∆I
LOAD
= 1mA to 150mA
V
IN
= 2.22V, ∆I
LOAD
= 1mA to 150mA
l
4
l
5
l
9
l
1
l
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 5, 6)
I
LOAD
= 1mA
I
LOAD
= 1mA
I
LOAD
= 10mA
I
LOAD
= 10mA
I
LOAD
= 50mA
I
LOAD
= 50mA
I
LOAD
= 150mA
I
LOAD
= 150mA
l
l
l
l
l
l
l
l
l
0.09
0.15
0.21
0.27
25
70
350
1.3
4
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
= 150mA
For more information
www.analog.com
3
Rev B
LT1762 Series
ELECTRICAL CHARACTERISTICS
PARAMETER
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
SHDN
Pin Current
(Note 9)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
Input Reverse Leakage Current
Reverse Output Current
(Note 10)
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 2)
CONDITIONS
C
OUT
= 10µF, C
BYP
= 0.01µF, I
LOAD
= 150mA,
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
= 1V (Avg), V
RIPPLE
= 0.5V
P-P
,
f
RIPPLE
= 120Hz, I
LOAD
= 150mA
V
IN
= 7V, V
OUT
= 0V
V
IN
= V
OUT(NOMINAL)
+ 1V, ∆V
OUT
= –0.1V
V
IN
= –20V, V
OUT
= 0V
LT1762-2.5
LT1762-3
LT1762-3.3
LT1762-5
V
OUT
= 2.5V, V
IN
< 2.5V
V
OUT
= 3V, V
IN
< 3V
V
OUT
= 3.3V, V
IN
< 3.3V
V
OUT
= 5V, V
IN
< 5V
l
l
l
l
MIN
TYP
20
30
0.8
MAX
UNITS
µV
RMS
100
2
nA
V
V
µA
µA
0.25
0.65
0.1
1
0.1
1
µA
dB
mA
mA
50
65
400
160
1
10
10
10
10
5
20
20
20
20
10
mA
µA
µA
µA
µA
µA
LT1762 (Note 3) V
OUT
= 1.22V, V
IN
< 1.22V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT1762 regulators are tested and specified under pulse
load conditions such that T
J
≈ T
A
. The LT1762 is 100% tested at 25°C.
Performance at –40°C and 125°C is assured by design, characterization
and correlation with statistical process controls.
Note 3:
The LT1762 (adjustable version) is tested and specified for these
conditions with the ADJ pin connected to the OUT pin.
Note 4:
Operating conditions are limited by maximum junction
temperature. The regulated output voltage specification will not apply
for all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.
Note 5:
To satisfy requirements for minimum input voltage, the LT1762
(adjustable version) is tested and specified for these conditions with an
external resistor divider (two 250k resistors) for an output voltage of
2.44V. The external resistor divider will add a 5µA DC load on the output.
Note 6:
Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout, the
output voltage will be equal to: V
IN
– V
DROPOUT
.
Note 7:
GND pin current is tested with V
IN
= V
OUT(NOMINAL)
and a current
source load. This means the device is tested while operating in its dropout
region. This is the worst-case GND pin current. The GND pin current will
decrease slightly at higher input voltages.
Note 8:
ADJ pin bias current flows into the ADJ pin.
Note 9:
SHDN
pin current flows into the
SHDN
pin.
Note 10:
Reverse output current is tested with the IN pin grounded and the
OUT pin forced to the rated output voltage. This current flows into the OUT
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Embedded System
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