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RT7253A 参数 Datasheet PDF下载

RT7253A图片预览
型号: RT7253A
PDF下载: 下载PDF文件 查看货源
内容描述: 3A , 17V , 340kHz同步降压型转换器 [3A, 17V, 340kHz Synchronous Step-Down Converter]
分类和应用: 转换器TI的电源Demo板
文件页数/大小: 14 页 / 192 K
品牌: RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
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RT7253A
Current Limit vs. Temperature
6.0
5.5
Load Transient Response
Current Limit (A)
V
OUT
(200mV/Div)
5.0
4.5
4.0
3.5
I
OUT
(2A/Div)
V
IN
= 12V, V
OUT
= 3.3V
3.0
-50
-25
0
25
50
75
100
125
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 0A to 3A
Time (100μs/Div)
Temperature (°C)
Load Transient Response
V
OUT
(10mV/Div)
V
OUT
(200mV/Div)
V
SW
(10V/Div)
Switching
I
OUT
(2A/Div)
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 1.5A to 3A
I
L
(2A/Div)
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 3A
Time (100μs/Div)
Time (1μs/Div)
Power On from EN
Power Off from EN
V
EN
(5V/Div)
V
OUT
(2V/Div)
I
OUT
(2A/Div)
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 3A
V
EN
(5V/Div)
V
OUT
(2V/Div)
I
OUT
(2A/Div)
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 3A
Time (5ms/Div)
Time (5ms/Div)
DS7253A-02 March 2011
www.richtek.com
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