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LTC3601IMSE Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3601IMSE
Description  1.5A, 15V Monolithic Synchronous Step-Down Regulator
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3601IMSE Datasheet(HTML) 4 Page - Linear Technology

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LTC3601
4
3601f
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current
Burst Mode Operation
Efficiency vs Load Current
Forced Continuous Mode
Efficiency vs Frequency
Forced Continuous Mode
Reference Voltage vs
Temperature
ELECTRICAL CHARACTERISTICS
Note 3: TJ is calculated from the ambient temperature, TA, and power
dissipation, PD, according to the following formula:
TJ = TA + (PD • θJA)
where θJA = 45°C/W for the QFN package and θJA = 38°C/W for the MSOP
package.
Efficiency vs Input Voltage
Burst Mode Operation
Note 4: Maximum allowed current draw when used as a regulated output
is 5mA. This supply is only intended to provide additional DC load current
as needed and not intended to regulate large transient or ac behavior as
these waveforms may impact LTC3601 operation.
Efficiency vs Load Current
TA = 25°C, VIN = 12V, fO = 1MHz, L = 2.2μH unless otherwise noted.
LOAD CURRENT (A)
30
90
100
20
10
80
50
70
60
40
0.001
0.1
1
10
3601 G01
0
0.01
VIN = 4V
VIN = 8V
VIN = 12V
VOUT = 1.8V
LOAD CURRENT (A)
30
90
100
20
10
80
50
70
60
40
0.001
0.1
1
10
3601 G02
0
0.01
VIN = 4V
VIN = 8V
VIN = 12V
VOUT = 1.8V
LOAD CURRENT (A)
30
90
100
20
10
80
50
70
60
40
0.001
0.1
1
10
3601 G03
0
0.01
VOUT = 3.3V
VOUT = 5V
BURST
FORCED
CONTINUOUS
INPUT VOLTAGE (V)
4
75
80
85
10
14
3601 G04
70
65
60
68
12
90
95
100
16
ILOAD = 500mA
ILOAD = 100mA
VOUT = 1.8V
FIGURE 7 CIRCUIT
ILOAD = 1.5A
ILOAD = 10mA
FREQUENCY (MHz)
0.5
80
82
84
86
88
90
92
1.0
1.5
2.0
2.5
3601 G05
3.0
L = 2.2μH
VOUT =1.8V
ILOAD = 500mA
L = 1μH
TEMPERATURE (°C)
–50
–25
0.595
0.599
0.605
0
50
75
3601 G06
0.597
0.603
0.601
25
100
125



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