参数资料
型号: SC121ULTRT
厂商: Semtech
文件页数: 9/23页
文件大小: 0K
描述: IC REG BOOST SYNC 3.3V/ADJ 6MLPD
标准包装: 1
类型: 升压(升压)
输出类型: 两者兼有
输出数: 1
输出电压: 3.3V,1.8 V ~ 5 V
输入电压: 0.7 V ~ 4.5 V
频率 - 开关: 1.2MHz
电流 - 输出: 500mA
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: 6-MLPD-UT
包装: 标准包装
供应商设备封装: 6-MLPD-UT(1.5x2.0)
其它名称: SC121ULTRTDKR
SC121
Typical Characteristics — V OUT = 4.0V
R 1 = 976k Ω , R 2 = 412k Ω , L = 4.7 μ H, C FB = 22pF, T A = 25 C
Efficiency vs. I OUT (V OUT = 4.0V)
ο
Effi ciency vs. I OUT (V OUT = 4.0V)
R 1 = 976k Ω , R 2 = 412k Ω , L = 4.7 μ H, C FB = 22pF, V IN = 2.4V
100
90
80
70
60
50
40
30
20
10
V IN = 3.6V
V IN = 1.2V
V IN = 2.4V
100
90
80
70
60
50
40
30
20
10
T A = –40°C
T A = 85°C
T A = 25°C
0
0.1 0.2
0.5
1
2
5
10
20
50
100 200
500
0
0.1 0.2
0.5
1
2
5
10
20
50
100 200
500
R 1 = 976k Ω , R 2 = 412k Ω , L = 4.7 μ H, C FB = 22pF, T A = 25 C
4.1
4.05
I OUT (mA)
Load Regulation (V OUT = 4.0V)
ο
4.1
4.05
I OUT (mA)
Load Regulation (V OUT = 4.0V)
R 1 = 976k Ω , R 2 = 412k Ω , L = 4.7 μ H, C FB = 22pF, V IN = 2.4V
4
V IN = 3.6V
4
3.95
V IN = 1.2V
3.95
T A = 25°C
3.9
V IN = 2.4V
3.9
T A = 85°C
T A = –40°C
3.85
0
50
100
150
200
250
300
350
400
450
500
550
3.85
0
50
100
150
200
250
300
350
400
450
500
550
I OUT (mA)
Line Regulation — Low Load (V OUT = 4.0V)
I OUT (mA)
Line Regulation — High Load (V OUT = 4.0V)
4.1
4.05
R 1 = 976k Ω , R 2 = 412k Ω , L = 4.7 μ H, C FB = 22pF, I OUT = 1mA
4.1
4.05
R 1 = 976k Ω , R 2 = 412k Ω , L = 4.7 μ H, C FB = 22pF, I OUT = 110mA
4
3.95
T A = 85°C
T A = –40°C
4
3.95
T A = –40°C
T A = 85°C
3.9
T A = 25°C
3.9
T A = 25°C
3.85
0.8
1.2
1.6
2
2.4
2.8
3.2
3.6
3.85
0.8
1.2
1.6
2
2.4
2.8
3.2
3.6
V IN (V)
V IN (V)
9
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