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RT7253A Datasheet(PDF) 7 Page - Richtek Technology Corporation

Part # RT7253A
Description  3A, 17V, 340kHz Synchronous Step-Down Converter
PDF  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT7253A Datasheet(HTML) 7 Page - Richtek Technology Corporation

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RT7253A
7
DS7253A-02 March 2011
www.richtek.com
Power On from EN
Time (5ms/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 3A
IOUT
(2A/Div)
VOUT
(2V/Div)
VEN
(5V/Div)
Switching
Time (1
μs/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 3A
IL
(2A/Div)
VOUT
(10mV/Div)
VSW
(10V/Div)
Load Transient Response
Time (100
μs/Div)
VOUT
(200mV/Div)
IOUT
(2A/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 0A to 3A
Load Transient Response
Time (100
μs/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 1.5A to 3A
IOUT
(2A/Div)
VOUT
(200mV/Div)
Power Off from EN
Time (5ms/Div)
IOUT
(2A/Div)
VOUT
(2V/Div)
VEN
(5V/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 3A
Current Limit vs. Temperature
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-50
-25
0
25
50
75
100
125
Temperature (°C)
VIN = 12V, VOUT = 3.3V



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