參數(shù)資料
型號： SP6122ACU-15
英文描述： Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
中文描述： 低電壓，微8，PFET的，降壓控制器適合第1A至5A，占地面積小，DC - DC電源轉(zhuǎn)換器
文件頁數(shù)： 11/19頁
文件大?。?/td> 174K
代理商： SP6122ACU-15
11
Date: 10/02/04
SP6122 Low Voltage, Micro 8, PFET, Buck Controller Copyright 2004 Sipex Corporation
Again, for that same 2.2
μ
H application, I
PEAK
= 4.6A. Therefore, a 2.2
μ
H inductor with at
least a 5A rating would be desired.
The type of core material to use must also
be determined. For low cost, powdered iron
cores can be used, and they have a gradual
saturation characteristic, but they can cause
ac core loss when the inductor value is low
and ripple current is high. Ferrite cores, on
the other hand, have an abrupt saturation
characteristic and the inductor value drops
sharply when the peak design current is
exceeded. But, ferrites are preferred for
high switching frequencies because they
have low core losses as long as the satura-
tion current is avoided.
Table 1 lists examples of both shielded and
unshielded ferrite core inductors for applica-
tions appropriate for SP6122 applications from
2A to 5A output current. The inductors listed
are both shielded and unshielded, the cus-
tomer can decide what is needed for their
application. For the SP6122 Evaluation Board,
the unshielded ferrite inductor 2.2
μ
H Coilcraft
DO3316P-222 was selected for its cost/per-
formance features.
Guidelines for Component Selection:
continued
INDUCTORS - SURFACE MOUNT
Note: Components highlighted in
bold
are those used on the SP6122 Evaluation Board.
INDUCTOR SPECIFICATION
Size LxWxH
(mm)
8.0
12.9x9.4x5.0
7.0
12.9x9.4x5.0
6.4
12.9x9.4x5.0
10.0
10x10x3.8
7.5
10x10x3.8
6.0
10x10x3.8
3.7
5.0x5.7x4.7
3.2
5.0x5.7x4.7
2.7
5.0x5.7x4.7
Inductance
(
μ
H)
1.5
2.2
3.3
1.5
2.5
3.8
1.5
2.2
3.3
Manufacturer/
Part No.
Series R
(
)
0.010
0.012
0.015
0.006
0.008
0.010
0.019
0.024
0.029
Isat
(A)
Manufacturer
Website
www.coilcraft.com
www.coilcraft.com
www.coilcraft.com
www.sumida.com
www.sumida.com
www.sumida.com
www.murata.com
www.murata.com
www.murata.com
Inductor Type
Coilcraft DO3316P-152
Coilcraft DO3316P-222
Coilcraft DO3316P-332
Sumida CDRH104R-1R5
Sumida CDRH104R-2R5
Sumida CDRH104R-3R8
Murata LQN6C1R5M04
Murata LQN6C2R2M04
Murata LQN6C3R3M04
Unshielded Ferrite Core
Unshielded Ferrite Core
Unshielded Ferrite Core
Shielded Ferrite Core
Shielded Ferrite Core
Shielded Ferrite Core
Unshielded Ferrite Core
Unshielded Ferrite Core
Unshielded Ferrite Core
CAPACITORS - SURFACE MOUNT & THROUGH HOLE
Note: Components highlighted in
bold
are those used on the SP6122 Evaluation Board.
CAPACITOR SPECIFICATION
Ripple Current
(A) @ 25
°
C
3.0
4.0
4.0
2.7
Capacitance
(
μ
F
)
470
47
4.7
100
Manufacturer/
Part No.
SANYO 6TPB470M
TDK C4532X5R0J476M
TDK C3216X5R1C475M
SANYO 16SA100M
ESR
(max)
0.035
0.005
0.020
0.030
Size LxWxH
(mm)
7343H
1812
1206
8Dx10L
Voltage
(V)
10.0
6.3 SMT X5R Cer.
10.0 SMT X5R Cer.
16.0Thru-hole OS-CON www.sanyovideo.com
Capacitor
Type
SMT Tant.
Manufacturer
Website
www.sanyovideo.com
www.tdk.com
www.tdk.com
PMOS SWITCH - SURFACE MOUNT
Note: Components highlighted in
bold
are those used on the SP6122 Evaluation Board.
PMOS SPECIFICATION
Crss
(pF)
300
800
400
R
DS(ON)
@ 3.3V
0.022
0.015
0.023
Gate Charge
nc @ 3.3V
15
34
17
Id (max)
(A)
8
10
8
Package
Type
SO-8
SO-8
SO-8
Manufacturer
Website
Manufacturer/Part No.
Fairchild PDS6375
Siliconix SI4463DY
Intersil ITF86172SK8T
www.fairchildsemi.com
www.siliconix.com
www.intersil.com
SCHOTTKY DIODE - SURFACE MOUNT
Note: Components highlighted in
bold
are those used on the SP6122 Evaluation Board.
DIODE SPECIFICATION
Size LxWxH
(mm)
5.5x3.9x2.5
9.4x6.7x2.3
V
F @ IF
(V)
0.50
0.50
I
F(AV)
(A)
4.0
8.0
Reverse V
(V)
25
35
Package
Type
SMB
DPAK
Manufacturer
Website
www.st.com
www.onsemi.com
Manufacturer/Part No.
STMicro STPS2L25U
On-Semi MBRD835L
Table 1: SP6122 Component Selection
相關(guān)PDF資料
PDF描述
SP6122CU Evaluation Board Manual
SP6122EB Evaluation Board Manual
SP6122UEB Evaluation Board Manual
SP6122ACU-1.5 Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
SP6122 Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP6122ACU-15/TR 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Voltage, Micro 8, PFET, Buck Controller Ideal for 1A to 5A, Small Footprint, DC-DC Power Converters
SP6122ACU-L 功能描述:DC/DC 開關(guān)控制器 Low Voltage, Micro 8 PFET Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
SP6122ACU-L/TR 功能描述:DC/DC 開關(guān)控制器 Low Voltage, Micro 8 PFET Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
SP6122ACU-L-1-5 制造商:Exar Corporation 功能描述:BUCK CONTROLLER LOW VOLT PFET 6122
SP6122CU 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Evaluation Board Manual
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