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MIC28510 5V EV 其他数据使用手册 - Micrel（迈瑞）
制造商:
Micrel（迈瑞）
分类:
开发板
描述:
Evaluation Board for MIC28510 5V 75V/4A Hyper Speed Control™ DC/DC RegulatorThe Micrel MIC28510 is an adjustable frequency, synchronous buck regulator featuring unique adaptive on–time control architecture.Hyper Speed Control™ architecture enables High delta V operation (Vin = 75V and Vout = 0.8V) Small output capacitance 4.5V to 75V voltage input 4A output current capability, up to 95% efficiency Output voltage set at 5V ≤1% feedback accuracy Any Capacitor™ stable Zero-ESR to high-ESR output capacitors 100kHz to 500kHz switching frequency Internal compensation Foldback current-limit and hiccup mode short-circuit protection Thermal shutdown Supports safe startup into a pre–biased load ### 开关电压调节器，Microchip展开
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MIC28510 5V EV数据手册
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Micrel, Inc. MIC28510 4A Evaluation Board
March 2012
3
M9999-030712
hbwhelp@micrel.com
or (408) 955-1690
MIC28510 0.8V to 5V/4A Evaluation Board Typical Characteristics
Efficiency (V
IN
= 48V)
vs. Output Current
10
20
30
40
50
60
70
80
90
100
012345
OUTPUT CURRENT (A)
EFFICIENCY (%)
6
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
0.8V
f
SW
= 250kHz
Thermal Derating
0
1
2
3
4
25 40 55 70 85 100
MAXIMUM AMBIENT TEMPERATURE
(°C)
LOAD CURRENT (A)
V
OUT
= 3.3V
fsw = 250kHz
L = 10µH
T
j_MAX
=125°C
V
IN
= 5V
V
IN
= 75V
V
IN
= 48V
Thermal Derating
0
1
2
3
4
25 40 55 70 85 100
MAXIMUM AMBIENT TEMPERATURE
(°C)
LOAD CURRENT (A)
V
OUT
= 5V
f
SW
= 250kHz
L = 10µH
T
j_MAX
= 125°C
V
IN
= 8V
V
IN
= 75V
V
IN
= 48V
Thermal Derating
Thermal Derating
0
1
2
3
4
25 40 55 70 85 100
MAXIMUM AMBIENT TEMPERATURE
(°C)
LOAD CURRENT (A)
V
OUT
= 3.3V
f
SW
= 250kHz
L = 10µH
T
j_MAX
= 125°C
V
IN
=18V
V
IN
= 12V
V
IN
= 24V
Thermal Derating
0
1
2
3
4
25 40 55 70 85 100
MAXIMUM AMBIENT TEMPERATURE
(°C)
LOAD CURRENT (A)
V
OUT
= 2.5V
f
SW
= 250kHz
L = 10µH
T
j_MAX
= 125°C
V
IN
=18V
V
IN
= 12V
V
IN
= 24V
0
L
1
2
3
4
25 40 55 70 85 100
MAXIMUM AMBIENT TEMPERATURE
(°C)
OAD CURRENT (A)
V
OUT
= 5V
f
SW
= 250kHz
L = 10µH
T
j_MAX
= 125°C
V
IN
=18V
V
IN
= 24V
V
IN
= 12V
Die Temperature* : The temperature measurement was taken at the hottest point on the MIC28510 case mounted on a 5 square inch 4 layer, 0.62”,
FR-4 PCB with 2oz. finish copper weight per layer, see Thermal Measurement section. Actual results will depend upon the size of the PCB, ambient
temperature and proximity to other heat emitting components.
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