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MP24943DS-LF-Z Datasheet, PDF (11/13 Pages) MPS Industries, Inc. – 3A, 55V, 100kHz Step-Down Converter with Programmable Output OVP Threshold
MP24943 –3A, 55V, 100kHz STEP-DOWN CONVERTER
This diode is also recommended for high-duty–
cycle operation (when VOUT >65%) and high
VIN
output voltage (VOUT>12V) applications.
Figure 2—External Bootstrap Diode
D1
NS
R1
0Ω
Vcc
VIN
C7
100μF
EN
C2
2.2μF
U1
VIN
C1
0.1μF
BST
SW
C3
R3
0.1μF NS
MP24943
EN
VO
GND
C9
0.1μF
SS
FB
GND
Example Design
Below is an example design that follows the
application guidelines for the specifications:
VIN
VOUT
FSW
VOVP
8 to 55V
5V
100kHz
6V
Figure 3 shows the detailed application
schematic. For more possible applications of
this device, please refer to related Evaluation
Board Data Sheets.
L1
33μH
D2
B560C
R4
301kΩ
R5
0Ω
R8
57.6kΩ
C8
C5 C6
100μF 22μF 0.1μF
C4
150pF
R6
680kΩ
+
R2
237kΩ
R7
42.2kΩ
VOUT
GND
Figure 3—Detailed Application Schematic
MP24943 Rev. 1.0
www.MonolithicPower.com
11
9/13/2011
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© 2011 MPS. All Rights Reserved.