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LTC3577 Datasheet(PDF) 8 Page - Linear Technology

Part # LTC3577
Description  7-Channel Confi gurable High Power PMIC
PDF  38 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3577 Datasheet(HTML) 8 Page - Linear Technology

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LTC3675
8
3675fa
TYPICAL PERFORMANCE CHARACTERISTICS
Enable Threshold vs Temperature
Enable Pin Precision Threshold
vs Temperature
1A Buck Regulators,
Efficiency vs Load
1A Buck Regulators,
Efficiency vs Load
1A Buck Regulators,
Load Regulation
1A Buck Regulators,
Line Regulation
Undervoltage Threshold
vs Temperature
Input Supply Current
vs Temperature
Oscillator Frequency
vs Temperature
TEMPERATURE (°C)
2.70
2.60
2.65
2.45
2.40
2.55
2.50
2.35
2.30
–15
–35
3675 G01
5
25
65
85 105 125
–55
45
VIN_FALLING
VIN_RISING
TEMPERATURE (°C)
50
40
45
30
35
15
10
25
20
5
0
–15
–35
3675 G02
5
25
65
85 105 125
–55
45
VIN = 2.7V
VIN = 3.6V
VIN = 5.5V
ALL REGULATORS AND LED
DRIVER IN SHUTDOWN
TEMPERATURE (°C)
2.50
2.40
2.45
2.30
2.35
2.15
2.10
2.25
2.20
2.05
2.00
–15
–35
3675 G03
5
25
65
85 105 125
–55
45
VIN = 2.7V
VIN = 3.6V
VIN = 5.5V
TEMPERATURE (°C)
900
800
850
700
750
550
650
600
450
500
400
–15
–35
3675 G04
5
25
65
85 105 125
–55
45
EN RISING
EN FALLING
ALL REGULATORS AND LED
DRIVER DISABLED, VIN = 3.6V
TEMPERATURE (°C)
420
410
415
400
405
385
395
390
380
–15
–35
3675 G05
5
25
65
85 105 125
–55
45
EN RISING
THRESHOLD MEASURED WITH A
REGULATOR ENABLED, VIN = 3.6V
EN FALLING
LOAD CURRENT (mA)
100
60
70
80
90
40
50
10
30
20
0
3675 G06
10
100
1000
1
VIN = 2.7V Burst Mode OPERATION
VIN = 3.6V Burst Mode OPERATION
VIN = 5.5V Burst Mode OPERATION
VIN = 2.7V PULSE SKIPPING-MODE
VIN = 3.6V PULSE SKIPPING-MODE
VIN = 5.5V PULSE SKIPPING-MODE
VOUT = 1.2V
LOAD CURRENT (mA)
100
60
70
80
90
40
50
10
30
20
0
3675 G06
10
100
1000
1
VIN = 2.7V Burst Mode OPERATION
VIN = 3.6V Burst Mode OPERATION
VIN = 5.5V Burst Mode OPERATION
VIN = 2.7V PULSE SKIPPING-MODE
VIN = 3.6V PULSE SKIPPING-MODE
VIN = 5.5V PULSE SKIPPING-MODE
VOUT = 2.5V
LOAD CURRENT (mA)
1.220
1.204
1.208
1.212
1.216
1.196
1.200
1.184
1.192
1.188
1.180
3675 G08
10
100
1000
1
VIN = 2.7V
PULSE-SKIPPING MODE
VIN = 3.6V
VIN = 5.5V
VIN (V)
1.220
1.212
1.196
1.188
1.204
1.180
1.216
1.200
1.192
1.208
1.184
3675 G09
3.1
5.1
4.7
5.5
3.9
3.5
4.3
2.7
PULSE-SKIPPING MODE
LOAD = 100mA
LOAD = 500mA
TA = 25°C, unless otherwise noted.



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