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MIC2182 Scheda tecnica(PDF) 21 Page - Micrel Semiconductor

Il numero della parte MIC2182
Spiegazioni elettronici  High-Efficiency Synchronous Buck Controller Final Information
PDF  28 Pages
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Produttore elettronici  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC2182 Scheda tecnica(HTML) 21 Page - Micrel Semiconductor

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June 2000
21
MIC2182
MIC2182
Micrel
VDD
BST
C6
0.1
µF
R1
2k
R7
100k
VIN
VOUT
GND
C2
2.2nF
C4
1nF
C3
0.1
µF
C5
0.1
µF
C1
0.1
µF
50V
C9
4.7
µF
16V
C11
(table)
D2
SD103BWS
Q2
(table)
D1
(table)
C7
(table)
C12
0.1
µF
50V
L1
(table)
R2
(table)
Q1
(table)
HSD
VSW
LSD
PGND
CSH
VOUT
VREF
SGND
GND
MIC2182
VIN
EN/UVLO
SS
PWM
COMP
SYNC
C13, 1nF
Figure 14. Basic Circuit Diagram for Use with Tables 3 through 6
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Table 1. Specifications for Figure 14 and Tables 3 through 6
Manufacturer
Telephone Number (USA)
Web Address
AVX
(803) 946-0690
www.avxcorp.com
Central Semiconductor
(516) 435-1110
www.centralsemi.com
Coiltronics
(561) 241-7876
www.coiltronics.com
IRC
(704) 264-8861
IR
(310) 322-3331
www.irf.com
Micrel
(408) 944-0800
www.micrel.com
Vishay/Lite On
(805) 446-4800
www.vishay-liteon.com
(diodes)
Vishay/Siliconix
(800) 554-5665
www.siliconix.com
(MOSFETs)
Vishay/Dale
(800) 487-9437
www.vishaytechno.com
(inductors and resistors)
Sumida
(847) 956-0666
www.japanlink.com/sumida
Table 2. Component Suppliers
Predesigned Circuits
A single schematic diagram, shown in Figure 14, can be used
to build power supplies ranging from 3A to 10A at the common
output voltages of 1.8V, 2.5V, 3.3V, and 5V. Components that
vary, depending upon output current and voltage, are listed
in the accompanying Tables 3 through 6.
Power supplies larger than 10A can also be constructed
using the MIC2182 using larger power-handling compo-
nents.
The “Power Supply Operating Characteristics” graphs follow-
ing the component and vendor tables provide useful informa-
tion about the actual performance of some of these circuits.



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