LT8410 Ver la hoja de datos (PDF) - Linear Technology
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LT8410 Datasheet PDF : 16 Pages
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LT8410/LT8410-1
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN =3.0V, VSHDN =VIN unless otherwise noted. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Switch VCESAT
Switch Leakage Current
Schottky Forward Voltage
Schottky Reverse Leakage
PMOS Disconnect Current Limit
LT8410, ISW = 10mA
LT8410-1, ISW = 4mA
VSW = 5V
IDIODE = 10mA
VCAP – VSW = 5
VCAP – VSW = 40
LT8410
LT8410-1
150
mV
100
mV
0
1
μA
650
850
mV
0
0.5
μA
0
1
μA
14
19
25
mA
2.5
4
5
mA
PMOS Disconnect VCAP – VOUT
VOUT Resistor Divider Ratio
FBP Pin Bias Current
SHDN Minimum Input Voltage High
SHDN Input Voltage High Hysteresis
SHDN Hysteresis Current
SHDN Input Voltage Low
SHDN Pin Bias Current
IOUT = 1mA
VFBP = 0.5V, Current Flows Out of Pin
SHDN Rising
(Note 3)
VSHDN = 3V
VSHDN = 16V
50
mV
l 31.6
31.85
32.2
l
1.3
30
nA
l 1.20
1.30
1.45
V
60
mV
0.08
0.1
0.14
μA
0.3
V
0
1
μA
2
3
μA
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 LT8410/LT8410-1 are guaranteed to meet performance
specifications from 0°C to 125°C junction temperature. Specifications over
the –40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
Note 3: See applications section for more information.
Note 4: Start-up mode occurs when VOUT is less than VFBP • 64/3.
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Switching Frequency
vs Load Current
1000
800
VCC = 3.6V
VOUT = 16V
FIGURE 4 CIRCUIT
600
400
200
0
0
1
2
3
LOAD CURRENT (mA)
8410-1 G01
Load Regulation
0.6
0.4
VCC = 3.6V
VOUT = 16V
FIGURE 4 CIRCUIT
0.2
0
– 0.2
– 0.4
– 0.6
0
1
2
LOAD CURRENT (mA)
3
8410-1 G02
VOUT vs FBP Voltage
50
40
30
20
10
0
0
0.5
1
1.5
2
FBP VOLTAGE (V)
8410-1 G03
84101f
3
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