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LTC3546 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3546
Description  Dual Synchronous, 3A/1A or 2A/2A Confi gurable Step-Down DC/DC Regulator
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3546 Datasheet(HTML) 6 Page - Linear Technology

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LTC3546
6
3546fb
OUT2 Burst Mode Operation
OUT2 Pulse-Skipping Mode
Operation
OUT2 Forced Continuous Mode
Operation
OUT1 Efficiency vs Load Current
OUT1 Efficiency vs Load Current
OUT2 Efficiency vs Load Current
OUT2 Efficiency vs Load Current
OUT1 Efficiency vs VIN
OUT1 Efficiency vs VIN
1μs/DIV
VOUT
20mV/DIV
ILOAD
500mA/DIV
3546 G11
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 2.5V
ILOAD = 300mA
1μs/DIV
VOUT
20mV/DIV
ILOAD
250mA/DIV
3546 G12
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 1.8V
ILOAD = 200mA
1μs/DIV
VOUT
20mV/DIV
ILOAD
250mA/DIV
3546 G13
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 1.8V
ILOAD = 100mA
ILOAD (A)
0.001
95
90
85
80
75
70
65
60
0.1
3546 G14
10
0.01
1
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 1.8V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
ILOAD (A)
0.001
95
90
85
80
75
70
60
65
0.1
3546 G15
1
0.01
SW1D CONNECTED TO SW2
VIN = 3.6V
VOUT = 1.8V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
ILOAD (A)
0.001
100
95
90
85
80
75
70
65
60
0.1
3546 G16
10
0.01
1
SW1D CONNECTED TO SW2
VIN = 3.6V
VOUT = 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
ILOAD (A)
0.001
100
95
90
85
80
75
70
65
60
0.1
3546 G17
10
0.01
1
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
VIN (V)
100
82
98
94
90
86
96
92
88
84
80
4.25
4.75
3.75
3546 G18
5.25
3.25
2.75
2.25
400mA
2A
SW1D CONNECTED TO SW1
VOUT = 1.8V
3546 G19
200mA
1A
100
82
98
94
90
86
96
92
88
84
80
4.25
4.75
3.75
5.25
3.25
2.75
2.25
SW1D CONNECTED TO SW2
VOUT = 1.8V
VIN (V)
TYPICAL PERFORMANCE CHARACTERISTICS



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