参数资料
型号: LTC3634IFE#TRPBF
厂商: Linear Technology
文件页数: 5/28页
文件大小: 0K
描述: IC CONV DDR DDR2 DDR3 28TSSOP
标准包装: 2,500
应用: 转换器,DDR,DDR2,DDR3
输入电压: 1.4 V ~ 15 V
输出数: 2
输出电压: 0.6 V ~ 3 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 28-TSSOP 裸露焊盘
包装: 带卷 (TR)
LTC3634
TYPICAL PERFORMANCE CHARACTERISTICS
otherwise noted.
T A = 25°C, V IN = 12V, f SW = 1MHz, L = 1.5μH unless
Efficiency vs Load Current
(Burst Mode Operation)
Efficiency vs Load Current
(Forced Continuous)
Efficiency vs Load Current
(Forced Continuous)
100
90
V OUT = 1.8V
100
90
V OUT = 1.8V
100
90
V OUT = 1.5V
80
70
60
50
40
80
70
60
50
40
80
70
60
50
40
30
20
10
0
0.001
0.01
0.1
LOAD CURRENT (A)
1
V IN = 4V
V IN = 8V
V IN = 12V
V IN = 15V
10
30
20
10
0
0.001
0.01
0.1
LOAD CURRENT (A)
1
V IN = 4V
V IN = 8V
V IN = 12V
V IN = 15V
10
30
20
10
0
0.001
0.01
0.1
LOAD CURRENT (A)
1
V IN = 4V
V IN = 8V
V IN = 12V
V IN = 15V
10
3634 G01
V TT Power Loss vs Load Current,
Sourcing and Sinking
Efficiency vs Input Voltage
3634 G02
3634 G03
V TT Power Loss vs Load Current
1.2
1.0
0.8
V TT = 0.9V
L = 0.82μH
V IN = 12V
V IN = 8V
V IN = 4V
95
90
85
1.2
1.0
0.8
V TT = 0.75V
L = 0.82μH
V IN = 15V
V IN = 12V
V IN = 8V
V IN = 4V
80
0.6
75
0.6
0.4
0.2
0
–3
–2
–1 0 1
OUTPUT CURRENT (A)
2
3
70
65
60
4
I OUT = 10mA
I OUT = 100mA
I OUT = 1A
I OUT = 3A
6 8 10 12
INPUT VOLTAGE (V)
14
16
0.4
0.2
0
–3
–2
–1 0 1
OUTPUT CURRENT (A)
2
3
0.605
0.603
0.601
0.599
0.597
Reference Voltage
vs Temperature
3634 G04
10
8
6
4
2
0
–2
–4
–6
–8
Oscillator Frequency
vs Temperature
3634 G05
2.6
2.4
2.2
2.0
1.8
1.6
3634 G06
Oscillator Internal Set Frequency
vs Temperature
0.595
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
–10
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
1.4
–50 –25
0
25 50 75 100 125 150
TEMPERATURE (°C)
3634 G07
3634 G08
For more information www.linear.com/LTC3634
3634 G09
3634fb
5
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