参数资料
型号: SC198MLTRT
厂商: Semtech
文件页数: 12/16页
文件大小: 0K
描述: IC REG BUCK SYNC PROG .6A 20MLPQ
标准包装: 1
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 可编程
输入电压: 2.7 V ~ 5.5 V
频率 - 开关: 1MHz
电流 - 输出: 600mA
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: 20-MLPQ
包装: 标准包装
供应商设备封装: 20-MLPQ(4x4)
产品目录页面: 1358 (CN2011-ZH PDF)
其它名称: SC198MLDKR
POWER MANAGEMENT
Typical Characteristics
NOT RECOMMENDED FOR NEW DESIGN
SC198
100
90
80
70
Ef ? ciency vs. Load @ 2.7V IN
100
90
80
70
Ef ? ciency vs. Load @ 3.6V IN
60
50
40
30
V OUT = 1V PSAVE
V OUT = 1.8V PSAVE
V OUT = 1.8V PWM
60
50
40
30
V OUT = 1V PSAVE
V OUT = 1.8V PSAVE
V OUT = 1.8V PWM
20
V OUT = 1V PWM
20
10
10
V OUT = 1V PWM
0
ENA=ENB=VIN
0
ENA=ENB=VIN
0.001
0.01
0.1
1
0.001
0.01
0.1
1
100
90
Load (A)
Ef ? ciency vs. Load @ 5.5V IN
Load (A)
Oscillator Frequency vs. Input Voltage
4.0
80
70
60
V OUT = 1.8V PSAVE
2.0
0.0
85°C
50
40
V OUT = 1V PSAVE
-2.0
25°C
-40°C
30
20
10
V OUT = 1.8V PWM
V OUT = 1V PWM
ENA=ENB=VIN
-4.0
-6.0
0
0.001
0.01
0.1
1
-8.0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
0.2
Load (A)
Line Regulation at 300mA OUT
1
Input (V)
Load Regulation at 3.6V IN (PWM)
0.15
V OUT = 1V
0.8
0.6
0.1
0.05
0
0.4
0.2
0
V OUT = 1.8V
-0.05
-0.1
-0.15
V OUT = 1.8V
-0.2
-0.4
-0.6
-0.8
V OUT = 1V
-0.2
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
-1
0.001
0.01
0.1
1
? 2007 Semtech Corp.
Input (V)
12
Load (A)
www.semtech.com
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