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MP28255 датащи(PDF) 7 Page - Monolithic Power Systems

номер детали MP28255
подробное описание детали  21V, 4A, 500kHz Synchronous Step-down Converter
PDF  14 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP28255 датащи(HTML) 7 Page - Monolithic Power Systems

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MP28255 – 4A, 21V, SYNCHRONOUS STEP-DOWN CONVERTER WITH INTERNAL MOSFETS
MP28255 Rev. 1.01
www.MonolithicPower.com
7
3/11/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 12V, VOUT = 1.2V, L=1.8uH, TA = +25ºC, unless otherwise noted.
Enable Startup
with 4A Load
Enable Startup
without Load
Power Up without Load
Power Up with 4A Load
VOUT
1V/div
VSW
5V/div
IINDUCTOR
5A/div
VOUT
1V/div
VEN
5V/div
VSW
5V/div
IINDUCTOR
5A/div
IINDUCTOR
5A/div
VOUT
1V/div
VEN
5V/div
VSW
5V/div
IINDUCTOR
5A/div
VOUT
1V/div
VIN
10V/div
VSW
5V/div
IINDUCTOR
5A/div
1ms/div
2ms/div
2ms/div
2ms/div
2ms/div
Short Entry
Short Recovery
Output Ripple Voltage
IOUT=4A
Input Ripple Voltage
IOUT=4A
VOUT
1V/div
VIN
10V/div
VSW
5V/div
IINDUCTOR
5A/div
VOUT
1V/div
VSW
5V/div
IINDUCTOR
5A/div
2ms/div
VSW
5V/div
VSW
5V/div
VOUT/AC
10mV/div
VIN/AC
100mV/div
Load Transient Response
IOUT=2A-4A
VOUT/AC
50mV/div
IOUT
2A/div



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