High-Efficiency, PWM, Step-Down
DC-DC Controllers in 16-Pin QSOP
Table 1. Component Selection for Standard Applications
COMPONENT
Input Range
Frequency
3.3V at 1A
4.75V to 28V
300kHz
3.3V at 2A
4.75V to 28V
300kHz
International Rectifier
1/2 IRF7303 or
Fairchild
Semiconductor
1/2 NDS8936
International Rectifier
1/2 IRF7303 or
Fairchild
Semiconductor
1/2 NDS8936
22µF, 35V
AVX
TPSE226M035R0300
220µF, 10V
AVX
TPSE227M010R0100
or Sprague
594D227X001002T
1N5819 or Motorola
MBRS130LT3
MAX1652–MAX1655
5V/3.3V at 3A
4.75V to 28V
300kHz
International Rectifier
IRF7403 or
Fairchild
Semiconductor
NDS 8410A
International Rectifier
IRF7403 or
Fairchild
Semiconductor
NDS 8410A
(2) 22µF, 35V
AVX
TPSE226M035R0300
470µF, 6V (for 3.3V)
Kemet
T510X477M006AS
or
(2) 220µF, 10V (for 5V)
AVX
TPSE227M010R011
1N5819 or Motorola
MBRS130LT3
3.3V at 5A
4.75V to 28V
300kHz
Fairchild
Semiconductor
FDS6680
1.8V at 2.5A
4.75V to 22V
150kHz
Q1 High-Side International Rectifier
MOSFET
1/2 IRF7101
International
Rectifier
1/2 IRF7303 or
Fairchild
Semiconductor
1/2 NDS8936
International Rectifier
1/2 IRF7303 or
Fairchild
Semiconductor
1/2 NDS8936
10µF, 25V ceramic
Taiyo Yuden
TMK325F106Z
470µF, 4V
Sprague
594D477X0004R2T
or
470µF, 6V
Kemet
T510X477M006AS
1N5817 or Motorola
MBRS130LT3
30mΩ
Dale WSL-2010-R030F
or IRC LR2010-01-R030
Q2 Low-Side
MOSFET
International Rectifier
1/2 IRF7101
Fairchild
Semiconductor
FDS6680
(3) 22µF, 35V
AVX
TPSE226M035R0300
(3) 330µF, 10V
Sprague
594D337X0010R2T
or
(2) 470µF, 6V
Kemet
T510X477M006AS
1N5821 or Motorola
MBRS340T3
C1 Input
Capacitor
10µF, 35V
AVX
TPSD106M035R0300
C2 Output
Capacitor
100µF, 6.3V
AVX TPSC107M006R
D1 Rectifier
R1 Sense
Resistor
1N5819 or Motorola
MBR0520L
70mΩ
33mΩ
25mΩ
12mΩ
Dale WSL-1206-R070F Dale WSL-2010-R033F Dale WSL-2010-R025F
Dale WSL-2512-R012F
or IRC LR2010-01-R070 or IRC LR2010-01-R033 or IRC LR2010-01-R025
33µH
Sumida CDR74B-330
15µH
10µH
Sumida CDR105B-150 Sumida CDRH125-100
L1 Inductor
4.7µH
15µH
Sumida CDRH127-4R7 Sumida CDRH125-150
Table 2. Component Suppliers
MANUFACTURER
AVX
Central Semiconductor
Coilcraft
Coiltronics
Dale
Fairchild
International Rectifier
IRC
Kemet
Matsuo
Motorola
USA PHONE
803-946-0690
516-435-1110
847-639-6400
561-241-7876
605-668-4131
408-822-2181
310-322-3331
512-992-7900
408-986-0424
714-969-2491
602-303-5454
FACTORY FAX
[Country Code]
[1] 803-626-3123
[1] 516-435-1824
[1] 847-639-1469
[1] 561-241-9339
[1] 605-665-1627
[1] 408-721-1635
[1] 310-322-3332
[1] 512-992-3377
[1] 408-986-1442
[1] 714-960-6492
[1] 602-994-6430
MANUFACTURER
Murata
NIEC
Sanyo
Siliconix
Sprague
Sumida
Taiyo Yuden
TDK
Transpower Technologies
*
Distributor
______________________________________________________________________________________
11
USA PHONE
814-237-1431
800-831-9172
805-867-2555*
619-661-6835
408-988-8000
800-554-5565
603-224-1961
847-956-0666
408-573-4150
847-390-4461
702-831-0140
FACTORY FAX
[Country Code]
[1] 814-238-0490
[81] 3-3494-7414
[81] 7-2070-1174
[1] 408-970-3950
[1] 603-224-1430
[81] 3-3607-5144
[1] 408-573-4159
[1] 847-390-4405
[1] 702-831-3521
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
