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LTC3312SAAVPBF Arkusz danych(PDF) 6 Page - Analog Devices

Numer części LTC3312SAAVPBF
Szczegółowy opis  5V, Dual 6A/Dual-Phase 12A Step-Down DC/DC Regulator
PDF  28 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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LTC3312SAAVPBF Arkusz danych(HTML) 6 Page - Analog Devices

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LTC3312SA
6
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Top Switch Current Limit
PVIN Shutdown Current
PVIN Quiescent Current,
Burst Mode Operation, Sleeping
PVIN Shutdown Quiescent Current,
All Modes, Not Sleeping
Switch Leakage
EN Threshold
PVIN UVLO Threshold
Switch Current Limits
Top Switch Current Limit vs VIN
VOUT/VIN = 0.2
TOP SWITCH IPEAKMAX
BOTTOM SWITCH IVALLEYMAX
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
Switch Current Limits
3312SA G10
VOUT/VIN = 0.2
150°
°
°
C
25 C
–40 C
INPUT VOLTAGE (V)
2
2.5
3
3.5
4
4.5
5
5.5
6
7
8
9
10
11
Top Switch Current Limit vs VIN
3312SA G11
VIN = 2.5V
VIN = 3.3V
VIN = 5V
DUTY CYCLE (%)
0 10 20 30 40 50 60 70 80 90 100
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
Top Switch Current Limit
3312SA G12
VIN = 2.25V
VIN = 3.3V
VIN = 5.5V
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
0
10.0
20.0
30.0
40.0
50.0
VIN Shutdown Current
3312SA G13
ONE BUCK ENABLED
BOTH BUCKS ENABLED
2.25V
3.3V
5.5V
TEMPERATURE(°C)
–50 –25
0
25
50
75 100 125 150
30
50
70
90
110
130
Burst Mode, Sleeping
VIN Quiescent Current,
3312SA G14
ONE BUCK ENABLED
BOTH BUCKS ENABLED
2.25V
3.3V
5.5V
TEMPERATURE(°C)
–50 –25
0
25
50
75 100 125 150
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
All Modes, Not Sleeping
VIN Shutdown Quiescent Current,
3312SA G15
TOP SWITCH
BOTTOM SWITCH
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
0
0.5
1.0
1.5
2.0
2.5
3.0
Switch Leakage
3312SA G16
EN RISING
EN FALLING
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
340
350
360
370
380
390
400
410
EN Threshold
3312SA G17
UVLO RISING
UVLO FALLING
TEMPERATURE (°C)
–50 –25
0
25
50
75 100 125 150
1.90
1.95
2.00
2.05
2.10
2.15
2.20
VIN UVLO Threshold
3312SA G18
TA = 25°C, unless otherwise noted.



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