ACE150112FM+H ACE [ACE Technology Co., LTD.], ACE150112FM+H Datasheet - Page 5

• Manufacturer Part Number: ACE150112FM+H
• Description: 150KHz,2A, PWM Step-Down DC/DC Converter
• Manufacturer: ACE [ACE Technology Co., LTD.]

Notes:
Thermal Considerations:
voltage, the load current and ambient temperature. The ACE150X junction temperature rises above ambient
temperature for a 2A load and different input and output voltages. The data for these curves was taken with the
ACE150X(SOP-8 package) operating as a buck-switching regulator in an ambient temperature of 25℃ (still air).
These temperature increments are all approximate and are affected by many factors.
generous amounts of printed circuit board copper should be used in the board layout. ( One exception is the
output(switch) pin, which should not have large areas of copper.) Large areas of copper provide the best transfer of
heat (lower thermal resistance) to the surrounding air, and moving air lowers the thermal resistance even further.
factors include board size, shape, thickness, position, location, and even board temperature. Other factors are, trace
width, total printed circuit copper area, copper thickness, single or double-sided, multi-layer board and the amount of
solder on the board. The effectiveness of the PC board to dissipate heat also depends on the size, Furthermore,
some of these components such as the catch diode will add heat to the PC board and the heat can vary as the
input voltage changes. For the inductor, depending on the physical size, type or core material and the DC resistance,
it could either act as a heat sink taking heat away from the board, or it could add heat to the board.
Application Data
The SOP-8 package needs a heat sink under most conditions. The size of the heat sink depends on the input
Higher ambient temperatures require more heat sinker. For the best thermal performance, wide copper traces and
Package thermal resistance and junction temperature increments are affected by a lot of factors. Some of these
VR(V)
20
30
40
50
Surface Mount Through Hole Surface Mount Through Hole
MBRS340
MBRS360
Scgittky
SK32
SK33
SK34
SK35
3A Diode
Technology
Schottky
MUR320
MBR320
MBR330
MBR340
MBR350
31DQ03
31DQ04
31DQ05
1N5820
1N5821
1N5822
SR302
SR304
SR305
50WQ03
50WQ04
50WQ05
Scgittky
50WF10
150KHz,2A ,PWM Step-Down DC/DC Converter
3A Diode
Schottky
50SQ080
MBR520
MUR620
HER601
1N5823
1N5824
1N5825
SR502
SR503
SB530
SR504
SB540
SB550
ACE150X
VER 1.2
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