参数资料
型号: EL7531IY-T13
厂商: Intersil
文件页数: 4/11页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 1A 10MSOP
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 5.5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电压模式
频率 - 开关: 1.4MHz
电流 - 输出: 1A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: 10-MSOP
EL7531
Performance Curves and Waveforms
All waveforms are taken at V IN = 3.3V, V O = 1.8V, I O = 1A with component values shown on page 1 at room ambient temperature, unless otherwise
noted.
100
100
95
90
85
80
V O = 3.3V
V O = 2.5V
90
80
70
V O = 3.3V
V O = 2.5V
V O = 1.8V
75
70
65
60
55
50
45
V O = 1.8V
V O = 1.5V
V O = 0.8V
V O = 1.2V
V O = 1.0V
V IN = 5V
60
50
40
30
20
10
V O = 1.5V
V O = 1.2V
V O = 1.0V
V O = 0.8V
V IN = 5V
40
0.001
0.010
0.100
1.000
0
0.001
0.010
0.100
1.000
I O (A)
FIGURE 1. EFFICIENCY vs I O (PFM/PWM MODE)
100
I O (A)
FIGURE 2. EFFICIENCY vs I O (PWM MODE)
100
95
90
85
80
75
70
65
60
V O = 2.5V
V O = 1.8V
V O = 1.5V
V O = 1.2V
V O = 1.0V
V O = 0.8V
90
80
70
60
50
40
30
V O = 2.5V
V O = 1.8V
V O = 1.5V
V O = 1.2V
V O = 1.0V
55
50
45
40
0.001
0.010
0.100
V IN = 3.3V
1.000
20
10
0
0.001
0.010
V O = 0.8V
0.100
V IN = 3.3V
1.000
I O (A)
FIGURE 3. EFFICIENCY vs I O (PFM/PWM MODE)
I O (A)
FIGURE 4. EFFICIENCY vs I O (PWM MODE)
1.44
1.42
V IN = 5V I O = 1A
V IN = 3.3V I O = 1A
V IN = 5V I O = 0A
0.1%
0.0%
1.4
1.38
1.36
1.34
1.32
V IN = 3.3V I O = 0A
-0.1%
-0.2%
-0.3%
-0.4%
-0.5%
V IN = 5V
V IN = 3.3V
-50
0
50
100
150
0
0.2
0.4
0.6
0.8
1
T A (°C)
FIGURE 5. F S vs JUNCTION TEMPERATURE (PWM MODE)
4
I O (A)
FIGURE 6. LOAD REGULATIONS (PWM MODE)
FN7428.9
July 13, 2006
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