LTC3636IUFD-1-PBF 查看數據表（PDF） - Linear Technology
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LTC3636IUFD-1-PBF Datasheet PDF : 28 Pages
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LTC3636/LTC3636-1
Typical Performance Characteristics
unless otherwise noted.
Efficiency vs Load Current
Efficiency vs Load Current
Forced Continuous Mode
Burst Mode Operation
Operation
100
90 VOUT = 1.8V
100
97 VOUT = 1.8V
TJ = 25°C, VIN1 = VIN2 = 12V, fSW = 1MHz, L = 0.55µH
Efficiency vs Load Current
100
Burst Mode OPERATION
90
80
94
80
70
91
70
FORCED
60
88
60
CONTINUOUS
50
85
MODE
50
40
30
20
10
0
0.001
VIN = 4V
VIN = 8V
VIN = 12V
VIN = 20V
0.01
0.1
1
LOAD CURRENT (A)
10
3636 G01
82
79
76
VIN = 4V
VIN = 8V
73
VIN = 12V
VIN = 20V
70
0 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6.0
LOAD CURRENT (A)
3636 G02
40
30
20
10
0
0.001
L = 1µH
VOUT = 5V
VOUT = 3.3V
VOUT = 5V
VOUT = 3.3V
0.01
0.1
1
LOAD CURRENT (A)
10
3636 G03
Efficiency vs Load Current
Burst Mode Operation
100
90 VOUT = 1.2V
80
70
60
50
40
30
20
10
0
0.001
VIN = 4V
VIN= 8V
VIN = 12V
VIN = 15V
VIN = 20V
0.01
0.1
1
LOAD CURRENT (A)
10
3636 G04
Efficiency vs Input Voltage
Burst Mode Operation
100
95 VOUT = 1.8V
90
85
80
75
70
65
60
ILOAD = 10mA
ILOAD = 100mA
55
ILOAD = 1A
ILOAD = 6A
50
4 6 8 10 12 14 16
INPUT VOLTAGE (V)
18 20
3636 G05
Reference Voltage
vs Temperature
0.606
0.604
0.602
0.600
0.598
0.596
0.594
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3636 G06
Load Regulation
1.6
VOUT = 1.8V
1.2
0.8
0.4
0
Burst Mode OPERATION
FORCED CONTINUOUS
–0.4
0
1
2
3
4
5
6
ILOAD (A)
237820 G07
Oscillator Frequency
vs Temperature
10
8 RT = 324k
6
4
2
0
–2
–4
–6
–8
–10
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3636 G08
Oscillator Internal Set Frequency
vs Temperature
2.4
RT = INTVCC
2.2
2.0
1.8
1.6
1.4
1.2
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3636 G09
For more information www.linear.com/LTC3636
3636fa
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