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LTM4650 Datasheet(PDF) 6 Page - Analog Devices

No. de pieza LTM4650
Descripción Electrónicos  60V, 300W Hybrid Step-Down Module Bus Converter
PDF  28 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

LTM4650 Datasheet(HTML) 6 Page - Analog Devices

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LTM4660
6
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Output Current
VIN = 48V, VOUT = 12V
Efficiency vs Output Current
VIN = 54V, VOUT = 12V
Switching Frequency
vs FREQ
Oscillator Frequency
vs Temperature
Efficiency for
VOUT = 5V, fSW = 250kHz
fSW = 350kHz
CFLY, CMID = 10µF ×12
CFLY, CMID = 10µF ×10
CFLY, CMID = 10µF ×8
LOAD CURRENT (A)
0
5
10
15
20
25
94
95
96
97
98
4660 G01
fSW = 350kHz
CFLY, CMID = 10µF ×12
CFLY, CMID = 10µF ×10
CFLY, CMID = 10µF ×8
LOAD CURRENT (A)
0
5
10
15
20
25
94
95
96
97
98
4660 G02
Efficiency for
54VIN, CMID = CFLY = 10μF ×12
12VOUT, 350kHz
9VOUT, 450kHz
7.5VOUT, 400kHz
5VOUT, 250kHz
LOAD CURRENT (A)
0
5
10
15
20
25
92
93
94
95
96
97
98
4660 G03
VIN = 48V
VIN = 54V
LOAD CURRENT (A)
0
5
10
15
20
25
90
91
92
93
94
95
96
4660 G04
vs Voltage at FREQ Pin
FREQ PIN VOLTAGE (V)
0
0.5
1
1.5
2
2.5
0
200
400
600
800
1000
1200
1400
1600
1800
4660 G05
RFREQ = 61.9kΩ
TEMPERATURE (°C)
–40 –25
0
25
50
75
100 125
0
100
200
300
400
500
600
700
800
4660 G06



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