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MP28313CS Scheda tecnica(PDF) 10 Page - Monolithic Power Systems

Il numero della parte MP28313CS
Spiegazioni elettronici  2A, 16V, 340KHz Synchronous Rectified Step-Down Converter
PDF  11 Pages
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Produttore elettronici  MPS [Monolithic Power Systems]
Homepage  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP28313CS Scheda tecnica(HTML) 10 Page - Monolithic Power Systems

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MP28313 – 2A, 16V, 340KHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER
MP28313 Rev. 1.5
www.MonolithicPower.com
10
9/27/2010
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
External Bootstrap Diode
An external bootstrap diode may enhance the
efficiency of the regulator, the applicable
conditions of external BST diode are:
VOUT=5V or 3.3V; and
Duty cycle is high: D=
IN
OUT
V
V
>65%
In these cases, an external BST diode is
recommended from the output of the voltage
regulator to BST pin, as shown in Figure3
MP28313
SW
BST
C
L
BST
C
5V or 3.3V
OUT
External BST Diode
IN4148
+
Figure 3—Add Optional External Bootstrap
Diode to Enhance Efficiency
The recommended external BST diode is
IN4148, and the BST cap is 0.1~1µF.



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