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LTC3312SAAVPBF Arkusz danych(PDF) 9 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) 9 Page - Analog Devices

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LTC3312SA
9
Rev. 0
For more information www.analog.com
Start-Up Waveforms
Forced Continuous Mode
Start-Up Waveforms
Pulse-Skipping Mode
TYPICAL PERFORMANCE CHARACTERISTICS
Start-Up Waveforms
Burst Mode Operation
Load Transient Response,
Forced Continuous Mode
Load Transient Response,
Pulse-Skipping Mode
Load Transient Response,
Burst Mode Operation
2-Phase Configuration
Load Transient Response,
Forced Continuous Mode
2-Phase Configuration
Load Transient Response,
Pulse-Skipping Mode
2-Phase Configuration
Load Transient Response,
Burst Mode Operation
Force Continuous Mode
Start–Up Waveforms
3.3V TO 1.2V, 2MHz TYPICAL APPLICATION
RLOAD = 120Ω
250µs/DIV
EN
1V/DIV
VOUT
1V/DIV
PGOOD
1.5V/DIV
IL
1A/DIV
3312SA G37
Pulse Skip Mode
Start–Up Waveforms
3.3V TO 1.2V, 2MHz TYPICAL APPLICATION
RLOAD = 120Ω
250µs/DIV
EN
1V/DIV
VOUT
1V/DIV
PGOOD
1.5V/DIV
IL
500mA/DIV
3312SA G38
Burst Mode Operation
Start–Up Waveforms
3.3V TO 1.2V, 2MHz TYPICAL APPLICATION
RLOAD = 120Ω
250µs/DIV
EN
1V/DIV
VOUT
1V/DIV
PGOOD
1.5V/DIV
IL
1A/DIV
3312SA G39
Force Continuous Mode
Load Transient Response,
3.3V TO 1.2V, 2MHz TYPICAL APPLICATION
COUT = 66µF, L = 220nH
LOAD STEP: 0.1A TO 4.5A IN 1µs
10µs/DIV
VOUT
50mV/DIV
ILOAD
2.5A/DIV
IL
2A/DIV
3312SA G40
3.3V TO 1.2V, 2MHz TYPICAL APPLICATION
COUT = 66µF, L = 220nH
LOAD STEP: 0.1A TO 4.5A IN 1µs
10µs/DIV
VOUT
50mV/DIV
ILOAD
2.5A/DIV
IL
2A/DIV
3312AS G41
Burst Mode
Load Transient Response,
3.3V TO 1.2V, 2MHz TYPICAL APPLICATION
COUT = 66µF, L = 220nH
LOAD STEP: 0.1A TO 4.5A IN 1µs
10µs/DIV
VOUT
50mV/DIV
ILOAD
2.5A/DIV
IL
2A/DIV
3312SA G42
Force Continuous Mode
Load Transient Response,
2–Phase Configuration
3.3V TO 1.0V, 2MHz 2-PHASE APPLICATION
COUT = 47µF ×6, L = 150nH
LOAD STEP: 0.1A TO 9A IN 1µs
10µs/DIV
VOUT
50mV/DIV
ILOAD
10A/DIV
IL1
5A/DIV
IL2
5A/DIV
3312SA G43
Pulse Skip Mode
Load Transient Response,
2–Phase Configuration
3.3V TO 1.0V, 2MHz 2-PHASE APPLICATION
COUT = 47µF ×6, L = 150nH
LOAD STEP: 0.1A TO 9A IN 1µs
10µs/DIV
VOUT
50mV/DIV
ILOAD
10A/DIV
IL1
5A/DIV
IL2
5A/DIV
3312SA G44
Burst Mode
Load Transient Response,
2–Phase Configuration
3.3V TO 1.0V, 2MHz 2-PHASE APPLICATION
COUT = 47µF ×6, L = 150nH
LOAD STEP: 0.1A TO 9A IN 1µs
10µs/DIV
VOUT
50mV/DIV
ILOAD
10A/DIV
IL1
5A/DIV
IL2
5A/DIV
3312SA G45
TA = 25°C, unless otherwise noted.



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