参数资料
型号: SC283WLTRT
厂商: Semtech
文件页数: 6/20页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 1.8A 18MLPQ
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: 0.8 V ~ 3.3 V
输入电压: 2.9 V ~ 5.5 V
频率 - 开关: 2.5MHz
电流 - 输出: 1.8A
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: 18-WFQFN 裸露焊盘
包装: 标准包装
供应商设备封装: 18-MLPQ-W(2x3)
其它名称: SC283WLDKR
SC283
Typical Characteristics (continued)
Circuit Conditions: C IN = 10uF/6.3V; C OUT = 22uF/6.3V, Unless otherwise noted, L= 2.2uH (TOKO: 1127AS-2R2M).
R DS(ON) Variation vs. Temperature
30%
RDSON (P & vs. Input over Line
R DS(ON) Variation N) Variation Voltage
20%
RDSON (P & N) Variation Over Temperature
25%
15%
V IN = 5.0V
I LX = ±100mA
20%
15%
P-Channel
10%
5%
10%
5%
0%
0%
-5%
-10%
N-Channel
-5%
I LX = ±100mA
T A = 25°C
N-Channel
-15%
P-Channel
-10%
-20%
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-40
-15
10
35
60
85
Input Voltage (V)
Switching vs. Line
Switching Frequency Variation over Input Voltage
5%
4%
Ambient Temperature (°C)
Switching Frequency
Switching Frequency Variation vs. Temperature
1.0%
0.8%
3%
2%
1%
0%
-1%
-2%
V OUT = 1.5V
V OUT = 3.3V
0.6%
0.4%
0.2%
0.0%
-0.2%
-0.4%
-3%
-4%
-5%
I OUT = 0A
T A = 25°C
-0.6%
-0.8%
-1.0%
V IN = 5.0V
I OUT = 0A
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-40
-15
10
35
60
85
1.0%
0.8%
0.6%
Input Voltage (V)
ove
Line Regulation Line
1.0%
0.8%
0.6%
Ambient Temperature (°C)
Line vs.
Line Regulation over Temperature
0.4%
0.2%
0.0%
-0.2%
-0.4%
V OUT = 1.5V
0.4%
0.2%
0.0%
-0.2%
-0.4%
-0.6%
-0.8%
I OUT = 0A
T A = 25°C
V OUT = 3.3V
-0.6%
-0.8%
V OUT = 1.5V
I OUT = 0A
-1.0%
-1.0%
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-40
-15
10
35
60
85
Input Voltage (V)
Ambient Temperature (°C)
? 2010 Semtech Corp.
6
www.semtech.com
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