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MCP16331 データシート(PDF) 20 Page - Microchip Technology

部品番号 MCP16331
部品情報  High-Voltage Input Integrated Switch Step-Down Regulator
PDF  40 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP16331 データシート(HTML) 20 Page - Microchip Technology

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MCP16331
DS20005308B-page 20
 2014 Microchip Technology Inc.
5.7
Freewheeling Diode
The freewheeling diode creates a path for inductor cur-
rent flow after the internal switch is turned off. The aver-
age diode current is dependent upon output load
current at duty cycle (D). The efficiency of the converter
is a function of the forward drop and speed of the free-
wheeling diode. A low forward drop Schottky diode is
recommended. The current rating and voltage rating of
the diode is application dependent. The diode voltage
rating should be a minimum of VIN, plus margin. The
average diode current can be calculated using
Equation 5-6.
EQUATION 5-6:
DIODE AVERAGE
CURRENT
TABLE 5-3:
MCP16331 RECOMMENDED
3.3V INDUCTORS
Part Number
Size
WxLxH
(mm)
Coilcraft®
ME3220-153
15
0.52
0.90
3.2x2.5x2.0
LPS4414-153
15
0.440 0.92
4.4x4.4x1.4
LPS6235-153
15
0.125 2.00
6.2x6.2x3.5
MSS6132-153
15
0.106 1.56
6.1x6.1x3.2
MSS7341-153
15
0.055 1.78
6.6x6.6x4.1
LPS3015-153
15
0.700 0.62
3.0x3.0x1.5
Wurth Elektronik®
744025150
15
0.400 0.900 2.8x2.8x2.8
744042150
15
0.22
0.75
4.8x4.8x1.8
7447779115
15
0.081
2.2
7.3x7.3x4.5
Coiltronics®
SD12-150R
15
0.408 0.692 5.2x5.2x1.2
SD3118-150-R
15
0.44
0.75
3.2x3.2x1.8
SD52-150-R
15
0.161 0.88
5.2x5.5.2.0
Sumida®
CDPH4D19FNP
-150MC
15
0.075 0.66
5.2x5.2x2.0
CDRH3D16/
HPNP-150MC
15
0.410 0.65
4.0x4.0x1.8
TDK - EPCOS®
B82462G4153M
15
0.097 1.05
6.3x6.3x3
TABLE 5-4:
MCP16331 RECOMMENDED
5V INDUCTORS
Part Number
Size
WxLxH
(mm)
Coilcraft®
ME3220-223
22
0.787 0.71
3.2x2.5x2.0
LPS4414-223
22
0.59
0.74
4.4x4.4x1.4
LPS6235-223
22
0.145
1.7
6.2x6.2x3.5
MSS6132-223
22
0.158 1.22
6.1x6.1x3.2
MSS7341-223
22
0.082 1.42
6.6x6.6x4.1
LPS3015-223
22
0.825
0.5
3.0x3.0x1.5
Wurth Elektronik®
744025220
22
0.575 0.75
2.8x2.8x2.8
744042220
22
0.3
0.6
4.8x4.8x1.8
7447779122
22
0.11
1.7
7.3x7.3x4.5
Cooper Bussman®
SD12-220-R
22
0.633 0.574 5.2x5.2x1.2
SD3118-220-R
22
0.676 0.61
3.2x3.2x1.8
SD52-220-R
22
0.204 0.73
5.2x5.2x2
Sumida®
CDPH4D19FNP
-220MC
22
0.135 0.54
5.2x5.2x2
CDRH3D16/
HPNP-220MC
22
0.61
0.55
4.0x4.0x1.8
TDK - EPCOS®
82462G4223M
22
0.15
0.85
6.3x6.3x3
I
DAVG
1D
–
 I
OUT
=



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