參數(shù)資料
型號(hào)： HWD20011EUA
廠商： Electronic Theatre Controls, Inc.
元件分類： DC/DC變換器
英文描述： High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters
中文描述： 高效率，低電源電流，結(jié)構(gòu)緊湊，升壓型DC - DC轉(zhuǎn)換器
文件頁數(shù)： 11/13頁
文件大小： 787K
代理商： HWD20011EUA
Capac itor S elec tion
A 47μF, 10V surface-mount tantalum (SMT) output filter
capacitor provides 80mV output ripple when stepping
up from 2V to 5V. Smaller capacitors (down to 10μF
with higher ESRs) are acceptable for light loads or in
applications that can tolerate higher output ripple.
Values in the 10μF to 100μF range are recommended.
The equivalent series resistance (ESR) of both bypass
and filter capacitors affects efficiency and output rip-
ple. Output voltage ripple is the product of the peak
inductor current and the output capacitor ESR. Use
low-ESR capacitors for best performance, or connect
two or more filter capacitors in parallel. Low-ESR, SMT
tantalum capacitors are currently available from
Sprague (595D series) AVX (TPS series) and other
sources. Ceramic surface-mount and Sanyo OS-CON
organic-semiconductor through-hole capacitors also
exhibit very low ESR, and are especially useful for oper-
ation at cold temperatures. See
Table 3
for a list of sug-
gested component suppliers.
H
High-Effic ienc y, Low-S upply-Current,
Compac t, S tep-Up DC-DC Converters
11
PRODUCTION
METHOD
INDUCTORS
CAPACITORS
RECTIFIERS
(OPTIONAL)
Surface Mount
Sumida CD43 series
Sumida CD54 series
Coilcraft DT1608C
Coilcraft DO1608C
Coiltronics Uni-PAC
Murata LQH4 series
Sprague 593D series
Sprague 595D series
AVX TPS series
ceramic
Motorola MBR0530
Nihon EC 15QS02L
Miniature Through-Hole
Sumida RCH654-220
Sanyo OS-CON series
—
Table 1. Suggested Components
Table 2. Surface-Mount Inductor
Specifications
MANUFACTURER
PART NUMBER
μH
(max) I
PEAK
(A)
HEIGHT
(mm)
Coilcraft DT1608C-103
Coilcraft DO1608C-153
Coilcraft DO1608C-223
Coiltronics UP1B-100
Coiltronics UP1B-150
Coiltronics UP1B-220
Murata LQH4N100
Murata LQH4N220
Sumida CD43-8R2
Sumida CD43-100
Sumida CD54-100
Sumida CD54-180
Sumida CD54-220
10
15
22
10
15
22
10
22
8.2
10
10
18
22
0.095
0.200
0.320
0.111
0.175
0.254
0.560
0.560
0.132
0.182
0.100
0.150
0.180
0.7
0.9
0.7
1.9
1.5
1.2
0.4
0.4
1.26
1.15
1.44
1.23
1.11
2.92
2.92
2.92
5.0
5.0
5.0
2.6
2.6
3.2
3.2
4.5
4.5
4.5
Table 3. Component Suppliers
COMPANY
PHONE
FAX
AVX
Coilcraft
Coiltronics
USA (803) 946-0690
USA (847) 639-6400
USA (561) 241-7876
USA (803) 626-3123
USA (847) 639-1469
USA (561) 241-9339
Murata
USA (814) 237-1431
(800) 831-9172
USA (814) 238-0490
Nihon
USA (805) 867-2555
J apan 81-3-3494-7411
USA (805) 867-2556
J apan 81-3-3494-7414
Motorola
USA (303) 675-2140
(800) 521-6274
USA (303) 675-2150
Sanyo
USA (619) 661-6835
J apan 81-7-2070-6306
USA (619) 661-1055
J apan 81-7-2070-1174
Sumida
USA (647) 956-0666
J apan 81-3-3607-5111
USA (647) 956-0702
J apan 81-3-3607-5144
Taiyo Yuden
USA (408) 573-4150
USA (408) 573-4159
Sprague
USA (603) 224-1961
USA (603) 224-1430
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