參數(shù)資料
型號(hào)： LM20144MHE
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： 4A, PowerWise㈢ Adjustable Frequency Synchronous Buck Regulator
中文描述： 6.6 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PDSO16
封裝： TSSOP-16
文件頁(yè)數(shù)： 18/20頁(yè)
文件大小： 744K
代理商： LM20144MHE
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.
30030601
FIGURE 11.
Bill of Materials (V
IN
= 5V, V
OUT
= 3.3V, F
SW
= 750kHz, I
OUTMAX
= 4A)
Designator
U1
C
IN
C
OUT
L
Description
Part Number
LM20144
GRM32ER60J107ME20
Manufacturer
National Semiconductor
Murata
Qty
1
1
Synchronous Buck Regulator
100 μF, 1210, X5R, 6.3V
100 μF, 1210, X5R, 6.3V
1.5 μH, 8.1m
1, 0603
100 nF, 0603, X7R, 16V
GRM32ER60J107ME20
Murata
1
MSS1038-152NL
Coilcraft
1
R
F
C
F
C
VCC
R
C1
C
C1
C
SS
R
T
R
FB1
R
FB2
CRCW06031R0J-e3
Vishay-Dale
1
GRM188R71C104KA01
Murata
1
1 μF, 0603, X5R, 6.3V
4.99 k
, 0603
2.2 nF, 0603, X7R, 25V
GRM188R60J105KA01
Murata
1
CRCW06034991F-e3
Vishay-Dale
1
VJ0603Y222KXXA
Vishay-Vitramon
1
33 nF, 0603, X7R, 25V
150 k
, 0603
31.6 k
, 0603
10.2 k
, 0603
VJ0603Y333KXXA
Vishay-Vitramon
1
CRCW06031503F-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
= 750kHz, I
OUTMAX
= 4A)
Designator
U1
C
IN
C
OUT
L
Description
Part Number
LM20144
GRM32ER60J107ME20
Manufacturer
National Semiconductor
Murata
Qty
1
1
Synchronous Buck Regulator
100 μF, 1210, X5R, 6.3V
100 μF, 1210, X5R, 6.3V
1 μH, 6m
1, 0603
100 nF, 0603, X7R, 16V
GRM32ER60J107ME20
Murata
1
MSS1038-102NL
Coilcraft
1
R
F
C
F
C
VCC
R
C1
C
C1
C
SS
R
T
R
FB1
R
FB2
CRCW06031R0J-e3
Vishay-Dale
1
GRM188R71C104KA01
Murata
1
1 μF, 0603, X5R, 6.3V
3.24 k
, 0603
3.3 nF, 0603, X7R, 25V
GRM188R60J105KA01
Murata
1
CRCW06033241F-e3
Vishay-Dale
1
VJ0603Y332KXXA
Vishay-Vitramon
1
33 nF, 0603, X7R, 25V
150 k
, 0603
4.99 k
, 0603
10 k
, 0603
VJ0603Y333KXXA
Vishay-Vitramon
1
CRCW06031503F-e3
Vishay-Dale
1
CRCW06034991F-e3
Vishay-Dale
1
CRCW06031002F-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
LM20144MHE/NOPB 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM20144MHX 制造商:Texas Instruments 功能描述:Conv DC-DC Single Step Down 2.95V to 5.5V 16-Pin TSSOP EP T/R
LM20144MHX/NOPB 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM20144QMH/NOPB 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 4A,PwrWise Adj Freq Sync Buck Reg RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM20144QMHE/NOPB 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 4A,PwrWise Adj Freq Sync Buck Reg RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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