參數(shù)資料
型號(hào)： LM20123
廠商： National Semiconductor Corporation
英文描述： 3A, 1.5MHz PowerWise㈢ Synchronous Buck Regulator
中文描述： 第3A，1.5MHz的半導(dǎo)體PowerWise㈢同步降壓穩(wěn)壓器
文件頁數(shù)： 17/20頁
文件大小： 494K
代理商： LM20123
Typical Application Circuit
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.
30030101
FIGURE 11.
Bill of Materials (V
IN
= 5V, V
OUT
= 3.3V, I
OUTMAX
= 3A)
Designator
U1
C
IN
C
OUT
L
Description
Part Number
LM20123
GRM32ER60J476ME20
Manufacturer
National Semiconductor
Murata
Qty
1
1
Synchronous Buck Regulator
47 μF, 1210, X5R, 6.3V
47 μF, 1210, X5R, 6.3V
1.2 μH, 17 m
1, 0603
100 nF, 0603, X7R, 16V
GRM32ER60J476ME20
Murata
1
DO1813H-122ML
Coilcraft
1
R
F
C
F
C
VCC
R
C1
C
C1
C
SS
R
FB1
R
FB2
CRCW06031R0J-e3
Vishay-Dale
1
GRM188R71C104KA01
Murata
1
1 μF, 0603, X5R, 6.3V
8.45 k
, 0603
1.5 nF, 0603, X7R, 25V
GRM188R60J105KA01
Murata
1
CRCW06038451F-e3
Vishay-Dale
1
VJ0603Y152KXXA
Vishay-Vitramon
1
33 nF, 0603, X7R, 25V
31.6 k
, 0603
10.2 k
, 0603
VJ0603Y333KXXA
Vishay-Vitramon
1
CRCW06033162F-e3
Vishay-Dale
1
CRCW06031022F-e3
Vishay-Dale
1
Bill of Materials (V
IN
= 3.3V to 5V, V
OUT
= 1.2V, I
OUTMAX
= 3A)
Designator
U1
C
IN
C
OUT
L
Description
Part Number
LM20123
GRM32ER60J476ME20
Manufacturer
National Semiconductor
Murata
Qty
1
1
Synchronous Buck Regulator
47 μF, 1210, X5R, 6.3V
47 μF, 1210, X5R, 6.3V
0.68 μH, 5 m
1, 0603
100 nF, 0603, X7R, 16V
GRM32ER60J476ME20
Murata
1
IHLP2525CZER0R68M01
Vishay
1
R
F
C
F
C
VCC
R
C1
C
C1
C
SS
R
FB1
R
FB2
CRCW06031R0J-e3
Vishay-Dale
1
GRM188R71C104KA01
Murata
1
1 μF, 0603, X5R, 6.3V
5.76 k
, 0603
2.2 nF, 0603, X7R, 25V
GRM188R60J105KA01
Murata
1
CRCW06035761F-e3
Vishay-Dale
1
VJ0603Y222KXXA
Vishay-Vitramon
1
33 nF, 0603, X7R, 25V
4.99 k
, 0603
10 k
, 0603
VJ0603Y333KXXA
Vishay-Vitramon
1
CRCW06034991F-e3
Vishay-Dale
1
CRCW06031002F-e3
Vishay-Dale
1
17
www.national.com
L
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM20123_08 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3A, 1.5MHz PowerWise㈢ Synchronous Buck Regulator
LM20123EVAL 功能描述:電源管理IC開發(fā)工具 LM20123 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM20123MH 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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
LM20123MH/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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
LM20123MHE 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
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