MP1567 데이터 시트보기 (PDF) - Monolithic Power Systems
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MP1567 Datasheet PDF : 11 Pages
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MP1567 – 1.2A SYNCHRONOUS RECTIFIED STEP-DOWN CONVERTER
External Boost Diode
For 5V input or output applications, it is
recommended that an external boost diode be
added. This will help improve the regulator
efficiency. The diode can be a low cost diode
such as an IN4148 or BAT54.
5V
BS 1
MP1567
SW 3
BOOST
DIODE
10nF
MP1567_F02
Figure 2—External Boost Diode
This diode is also recommended for high duty
cycle operation (when VOUT >65%) and high
VIN
output voltage (VOUT>12V) applications.
TYPICAL APPLICATION CIRCUITS
INPUT
6V
C7
10nF
2
1
OFF ON
OPEN IF
NOT USED
IN
BS
10
EN
SW 3
MP1567
7
FB
6
SS
BP 9
SGND PGND COMP
C5
10nF
5
4
8
C6
C3
10nF
1nF
C4
OPEN
VOUT
1.8V/1.2A
Figure 3—6V Input Application Circuit
MP1567_F03
MP1567 Rev. 2.3
www.MonolithicPower.com
9
1/3/2006
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2006 MPS. All Rights Reserved.
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