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GM2576HV Fiches technique(PDF) 6 Page - Gamma Microelectronics Inc.

No de pièce GM2576HV
Description  Standard ESOP8 package is available
Download  8 Pages
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Fabricant  GAMMA [Gamma Microelectronics Inc.]
Site Internet  http://www.gammamicro.com.tw/
Logo GAMMA - Gamma Microelectronics Inc.

GM2576HV Fiches technique(HTML) 6 Page - Gamma Microelectronics Inc.

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GM2576HV
60V/3A STEP DOWN VOLTAGE
SWITCHING REGULATORS
Test Circuit and Layout Guidelines
Careful layout is important with any switching regulators. Rapidly switching currents associated with
wiring inductance generate voltage transients which can cause problems. To minimize inductance
and ground loops, the lengths of the leads indicated by heavy lines in Figure 1&2 below should be
kept as short as possible. Single point grounding (as indicated or ground plane construction should
be used for best results. W hen using the Adjustable version, place the programming resistors as
close as possible to GM2576HV, to keep the sensitive feedback wiring short.
Figure 1 Fixed Ouput Votlage Versions
CIN = 100μF, 75V Aluminum Electrolytic
COUT = 680μF, 25V, Aluminum Electrolytic
D1 = Schottky
L1 = 100
μH
Figure 2 Adjustable Ouput Votlage Versions
CIN = 100μF, 75V Aluminum Electrolytic
COUT = 680μF, 25V, Aluminum Electrolytic
D1 = Schottky
L1 = 100
μH
VOUT = VREF (1 + R2/R1)
where VREF = 1.23V and R1 is between 1K to 5K
VIN
Unregulatedd
DC Input
CIN
100μF
COUT
68
0μF
L1
10
0μH
D1
MBR360
VOUT
L
O
A
D
FB
VOUT
SD
GND
VIN
GM2576HV-x.x
VIN
Unregulatedd
DC Input
CIN
100μF
COUT
68
0μF
L1
10
0μH
D1
MBR360
VOUT
L
O
A
D
FB
VOUT
SD
GND
VIN
GM2576HV-A
R2
R1


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