參數(shù)資料
型號(hào)： LM20145
廠商： National Semiconductor Corporation
英文描述： 5A, PowerWise㈢ Adjustable Frequency Synchronous Buck Regulator
中文描述： 第5A，頻率可調(diào)的PowerWise㈢同步降壓穩(wěn)壓器
文件頁(yè)數(shù)： 18/22頁(yè)
文件大小： 601K
代理商： LM20145
Typical Application Circuits
This section provides several application solutions with a bill
of materials. All bill of materials reference the below figure.
The compensation for these solutions were optimized to work
over a wide range of input and output voltages; if a faster
transient response is needed reduce the value of C
and
calculate the new value for R
C1
as outline in the design guide.
30030760
FIGURE 11.
Bill of Materials (V
IN
= 5V, V
OUT
= 3.3V, F
SW
= 300kHz, I
OUTMAX
= 5A)
Designator
U1
C
IN
C
OUT
L
Description
Part Number
LM20145
GRM32ER60J107ME20
Manufacturer
National Semiconductor
Murata
Qty
1
1
Synchronous Buck Regulator
100 μF, 1210, X5R, 6.3V
330 μF, 6.3V
2.2 μH, 8.2 m
1, 0603
100 nF, 0603, X7R, 16V
6TPE330ML
Sanyo
1
IHLP4040DZER2R2M01
Vishay
1
R
F
C
F
C
VCC
R
C1
C
C1
C
C2
C
SS
R
T
R
FB1
R
FB2
CRCW06031R0J-e3
Vishay-Dale
1
GRM188R71C104KA01
Murata
1
1 μF, 0603, X5R, 6.3V
49.9 k
, 0603
2.2 nF, 0603, X7R, 25V
GRM188R60J105KA01
Murata
1
CRCW06034992F-e3
Vishay-Dale
1
VJ0603Y222KXXA
Vishay-Vitramon
1
100 pF, 0603, COG, 50V
VJ0603A101KXAA
Vishay-Dale
1
33 nF, 0603, X7R, 25V
205 k
, 0603
31.6 k
, 0603
10.2 k
, 0603
VJ0603Y333KXXA
Vishay-Vitramon
1
CRCW06032053F-e3
Vishay-Dale
1
CRCW06033162F-e3
Vishay-Dale
1
CRCW06031022F-e3
Vishay-Dale
1
Bill of Materials (V
IN
= 3.3V to 5V, V
OUT
= 1.2V, F
SW
= 300kHz, I
OUTMAX
= 5A)
Designator
U1
C
IN
C
OUT
L
Description
Part Number
LM20145
GRM32ER60J107ME20
Manufacturer
National Semiconductor
Murata
Qty
1
1
Synchronous Buck Regulator
100 μF, 1210, X5R, 6.3V
330 μF, 6.3V
2.2 μH, 8.2 m
1, 0603
100 nF, 0603, X7R, 16V
6TPE330ML
Sanyo
1
IHLP4040DZER2R2M01
Vishay
1
R
F
C
F
C
VCC
R
C1
C
C1
C
C2
C
SS
R
T
CRCW06031R0J-e3
Vishay-Dale
1
GRM188R71C104KA01
Murata
1
1 μF, 0603, X5R, 6.3V
20 k
, 0603
3.3 nF, 0603, X7R, 25V
GRM188R60J105KA01
Murata
1
CRCW06032002F-e3
Vishay-Dale
1
VJ0603Y332KXXA
Vishay-Vitramon
1
330 pF, 0603, COG, 50V
VJ0603A331AKXAA
Vishay-Dale
1
33 nF, 0603, X7R, 25V
205 k
, 0603
VJ0603Y333KXXA
Vishay-Vitramon
1
CRCW06032053F-e3
Vishay-Dale
1
www.national.com
18
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM20145_08 制造商:NSC 制造商全稱:National Semiconductor 功能描述:5A, PowerWise㈢ Adjustable Frequency Synchronous Buck Regulator
LM20145CS-A 制造商:CEC Industries 功能描述:LED, RPL, BULB, AMBER, T-6, E12, Lamp Base Type:Candelabra Screw, LED Color:Ambe
LM20145CS-B 制造商:CEC Industries 功能描述:LED, RPL, BULB, BLUE, T-6, E12; Lamp Base Type:Candelabra Screw; LED Color:Blue; Wavelength Typ:470nm; Power Rating:720mW; Bulb Size:T-6; Supply Voltage:145V; Current Rating:30mA; Average Bulb Life:100000h; Beam Divergence:360 ;RoHS Compliant: No
LM20145CS-G 制造商:CEC Industries 功能描述:LED, RPL, BULB, GREEN, T-6, E12; Lamp Base Type:Candelabra Screw; LED Color:Green; Wavelength Typ:525nm; Power Rating:720mW; Bulb Size:T-6; Supply Voltage:145V; Current Rating:30mA; Average Bulb Life:100000h; Beam Divergence:360 ;RoHS Compliant: No
LM20145CS-R 制造商:CEC Industries 功能描述:LED, RPL, BULB, RED, T-6, E12; Lamp Base Type:Candelabra Screw; LED Color:Red; Wavelength Typ:629nm; Power Rating:720mW; Bulb Size:T-6; Supply Voltage:145V; Current Rating:30mA; Average Bulb Life:100000h; Beam Divergence:360 ;RoHS Compliant: No
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