MP28115 Datasheet, PDF (6/11 Pages) Monolithic Power Systems – 4A, 1.5MHz Synchronous Step-Down Converter

MP28115 – 4A, 1.5MHz SYNCHRONOUS STEP-DOWN CONVERTER
FUNCTIONAL BLOCK DIAGRAM
POK
0.88V ₊
IN
--
EN
IN
+
0.72V --
BS
EN/SYNC
EN/SYNC EN
LOGIC
EXCLK
LOGIC
PWM
CURRENT
CLK
COMPARATOR
OSC
SW
SLOPE
SW
0.5pF
1.2 MEG 17pF
SLOPE
COMPENSATION
FB
--
0.8V
+
+
COMP
AND PEAK
CURRENT LIMIT
SOFT
-START
GND
GND
Figure 1—Functional Block Diagram
MP28115 Rev. 0.92
www.MonolithicPower.com
6
8/23/2010
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