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LT3685EDD Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT3685EDD
36V, 2A, 2.4MHz Step-Down Switching Regulator
Linear Technology
LT3685EDD Datasheet PDF : 24 Pages
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LT3685
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C unless otherwise noted.
Minimum Input Voltage
5.0
4.5
4.0
3.5
3.0
2.5
V
OUT
= 3.3V
L = 4.7μH
2.0
f = 800kHz
1
10
100
1000
LOAD CURRENT (A)
10000
3685 G17
Power Good Threshold
95
90
Minimum Input Voltage
6.5
V
C
Voltages
2.50
6.0
2.00
CURRENT LIMIT CLAMP
1.50
5.5
5.0
4.5
V
OUT
= 5V
L = 4.7μH
4.0
f = 800kHz
1
10
100
1000
LOAD CURRENT (A)
10000
3685 G18
Switching Waveforms;
Discontinuous Operation
1.00
SWITCHING THRESHOLD
0.50
0
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3685 G19
Switching Waveforms;
Continuous Operation
V
SW
5V/DIV
V
SW
5V/DIV
85
I
L
I
L
0.5A/DIV
1A/DIV
80
V
OUT
V
OUT
10mV/DIV
10mV/DIV
75
–50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
3685 G20
1μs/DIV
V
IN
= 12V; FRONT PAGE APPLICATION
I
LOAD
= 110mA
3685 G21
1μs/DIV
V
IN
= 12V; FRONT PAGE APPLICATION
I
LOAD
= 1A
3685 G22
3685fb
6
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