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LTC3780 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3780
Description  High Efficiency, Synchronous, 4-Switch Buck-Boost Controller
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3780 Datasheet(HTML) 6 Page - Linear Technology

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LTC3780
3780f
Discontinuous Current Mode
(DCM, VIN = 6V, VOUT = 12V)
Continuous Current Mode
(CCM, VIN = 12V, VOUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
VOUT
100mV/DIV
5µs/DIV
VIN = 6V
VOUT = 12V
3780 G10
IL
2A/DIV
SW2
10V/DIV
SW1
10V/DIV
VOUT
100mV/DIV
5µs/DIV
VIN = 12V
VOUT = 12V
3780 G11
IL
2A/DIV
SW2
10V/DIV
SW1
10V/DIV
VOUT
100mV/DIV
5µs/DIV
VIN = 18V
VOUT = 12V
3780 G12
IL
2A/DIV
Continuous Current Mode
(CCM, VIN = 18V, VOUT = 12V)
Burst Mode Operation
(VIN = 6V, VOUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
VOUT
500mV/DIV
25µs/DIV
VIN = 6V
VOUT = 12V
3780 G13
IL
2A/DIV
Burst Mode Operation
(VIN = 12V, VOUT = 12V)
Skip Cycle Mode
(VIN = 18V, VOUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
VOUT
200mV/DIV
10µs/DIV
VIN = 12V
VOUT = 12V
3780 G14
IL
2A/DIV
SW2
10V/DIV
SW1
10V/DIV
VOUT
100mV/DIV
2.5µs/DIV
VIN = 18V
VOUT = 12V
3780 G15
IL
1A/DIV
Discontinuous Current Mode
(DCM, VIN = 6V, VOUT = 12V)
Discontinuous Current Mode
(DCM, VIN = 12V, VOUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
VOUT
100mV/DIV
5µs/DIV
VIN = 6V
VOUT = 12V
3780 G16
IL
1A/DIV
SW2
10V/DIV
SW1
10V/DIV
VOUT
100mV/DIV
5µs/DIV
VIN = 12V
VOUT = 12V
3780 G17
IL
2A/DIV
Discontinuous Current Mode
(DCM, VIN = 18V, VOUT = 12V)
SW2
10V/DIV
SW1
10V/DIV
VOUT
100mV/DIV
2.5µs/DIV
VIN = 18V
VOUT = 12V
3780 G18
IL
1A/DIV
TYPICAL PERFOR A CE CHARACTERISTICS T
A = 25°C unless otherwise noted.



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