直流轉直流轉換器

直流轉直流轉換器是用於將直流電從某一電壓以高效率轉換至另一電壓的電子裝置。直流轉直流轉換器廣泛用於系統與儀器中以轉換及分配直流電。直流電通常以系統電源供應器或電池的型態來提供。對於直流轉直流轉換器的輸入是非穩壓式直流電壓 Vg。轉換器產生電子元件 IC 需要的穩壓式輸出電壓 (5V 或 3.3V),具有的強度 (也可能是極性) 和 Vg 不同。


理想的直流轉直流轉換器應具備 100% 效率,但事實務上通常是 70% 至 95%。這一點透過開關模式,或元件消耗電力非常小的斬波器電路來達成。脈衝寬度調制 (PWM) 能控制與穩定總輸出電壓。


直流轉直流電源轉換器適用於眾多應用,涵蓋個人電腦的電源供應器、辦公室設備、太空船的電源系統、筆記型電腦、通訊設備與直流馬達驅動。


回到電源管理主頁面

影片

Introduction to Power Electronics - Overview

Dual Step-Down DC-DC Converter Evaluation Board - NCP1532GEVB

Engineer It: Leverage TI’s online toolbox to tackle thermals before touching a soldering iron

精選產品

Traco Power

TSR2 series 2 Watt SMD DC/DC converter

立即選購
Bel Power

500/1000 W DC-DC Converters

立即選購
Renesas

30A/30A Dual-Channel Digital PMBus Step-Down Power Module

立即選購
Wurth

Wurth Electronics WE-LAN Transformers

立即選購

目前無法顯示合約定價。所列價格為標準零售價格,處理下單時將會套用合約定價。

  製造商零件編號 訂購代碼 製造商 / 描述
可用性 項目價格
價格
數量
BD7682FJ-LBE2
BD7682FJ-LBE2 - DC/DC Controller-Converter, Quasi-Resonant, 15 V to 27.5 V, 1 Output, 120 kHz, SOP-8

2546775

ROHM - DC/DC Controller-Converter, Quasi-Resonant, 15 V to 27.5 V, 1 Output, 120 kHz, SOP-8

QUASI-RESONANT DC/DC CTRL, 120KHZ, SOP-8; Supply Voltage Min:15V; Supply Voltage Max:27.5V; No. of Outputs:1 Output; Duty Cycle (%):-; Controller IC Case Style:SOP; No. of Pins:8Pins; Switching Frequency:120kHz; Topology:-; Operating Temperature Min:-40°

  • 68 件可在 3 - 4 個工作日內出貨
+ 查看存貨和交貨期

  • 68 件可在 3 - 4 個工作日內出貨: 下午 4 點前訂購 (週一至週五,國定假日除外)

2019/8/19 當週起有更多存貨可供選購

每個

條帶式包裝

1+ NT$83.49 10+ NT$67.52 100+ NT$54.10 500+ NT$47.19 1000+ NT$39.21 2500+ NT$38.12 5000+ NT$35.11 10000+ NT$33.40 其他價格...

新增
最小訂貨量: 1 訂購倍數: 1
TPSM84A21MOJT
TPSM84A21MOJT - DC/DC POL Converter, Adjustable, Buck, 4 MHz, 8 V to 14 V in, 550 mV to 1.35 V/10 A out, QFM-20

2707281

TEXAS INSTRUMENTS - DC/DC POL Converter, Adjustable, Buck, 4 MHz, 8 V to 14 V in, 550 mV to 1.35 V/10 A out, QFM-20

DC/DC CONV, SYNC BUCK, 4MHZ, QFM-20; DC / DC Converter Type:Module; Input Voltage Min:8V; Input Voltage Max:14V; No. of Outputs:1 Output; DC / DC Converter IC Case:QFM; No. of Pins:20Pins; Output Current:10A; Output Voltage Min:550mV; Output Voltage Max:

  • 220 件可在 3 - 4 個工作日內出貨
+ 查看存貨和交貨期

  • 220 件可在 3 - 4 個工作日內出貨: 下午 4 點前訂購 (週一至週五,國定假日除外)

2020/6/22 當週起有更多存貨可供選購

每卷

條帶式包裝

1+ NT$578.21 10+ NT$531.75 25+ NT$503.80 100+ NT$449.00 250+ NT$426.85 500+ NT$399.26 1000+ NT$366.24 其他價格...

新增
最小訂貨量: 1 訂購倍數: 1
ISL8203MIRZ-T7A
ISL8203MIRZ-T7A - DC/DC POL Converter, Adjustable, Buck, 1.1 MHz, 2.85 V to 6 V in, 0.8 V to 5 V out, 3 A, QFN-23

2630548

RENESAS - DC/DC POL Converter, Adjustable, Buck, 1.1 MHz, 2.85 V to 6 V in, 0.8 V to 5 V out, 3 A, QFN-23

DC/DC CONV, BUCK, 1.1MHZ, QFN-23; DC / DC Converter Type:Module; Input Voltage Min:2.85V; Input Voltage Max:6V; No. of Outputs:2 Output; DC / DC Converter IC Case:QFN; No. of Pins:23Pins; Output Current:3A; Output Voltage Min:800mV; Output Voltage Max:5V

  • 368 件可在 3 - 4 個工作日內出貨
+ 查看存貨和交貨期

  • 368 件可在 3 - 4 個工作日內出貨: 下午 4 點前訂購 (週一至週五,國定假日除外)

2019/9/23 當週起有更多存貨可供選購

每卷

複捲式包裝

1+ NT$452.06 10+ NT$408.42 25+ NT$389.42 100+ NT$338.13

新增
最小訂貨量: 1 訂購倍數: 1
NCP81174MNTXG
NCP81174MNTXG - DC/DC Controller, Synchronous Buck, Step Down, 4 Out, 7 V to 20 V Supply, 1 MHz, QFN-32

2724288

ON SEMICONDUCTOR - DC/DC Controller, Synchronous Buck, Step Down, 4 Out, 7 V to 20 V Supply, 1 MHz, QFN-32

DC/DC CTRL, SYNC BUCK, 1MHZ, QFN-32; Supply Voltage Min:7V; Supply Voltage Max:20V; No. of Outputs:4 Output; Duty Cycle (%):-; Controller IC Case Style:QFN; No. of Pins:32Pins; Switching Frequency:1MHz; Topology:Synchronous Buck (Step Down); Operating Te

  • 2,460 件可在 3 - 4 個工作日內出貨
+ 查看存貨和交貨期

  • 2,460 件可在 3 - 4 個工作日內出貨: 下午 4 點前訂購 (週一至週五,國定假日除外)

2019/8/5 當週起有更多存貨可供選購

每卷

複捲式包裝

1+ NT$83.12 10+ NT$70.43 100+ NT$56.27 500+ NT$49.37 1000+ NT$41.03 2500+ NT$38.12 5000+ NT$36.67 其他價格...

新增
最小訂貨量: 1 訂購倍數: 1
MIC2128YML-T5
MIC2128YML-T5 - DC/DC Controller, Synchronous Buck, Step Down, 4.5V to 75V Supply, 85 % Duty Cycle, 800 kHz, QFN-16

2678436

MICROCHIP - DC/DC Controller, Synchronous Buck, Step Down, 4.5V to 75V Supply, 85 % Duty Cycle, 800 kHz, QFN-16

DC/DC CTRL, SYNC BUCK, 800KHZ, QFN-16; Supply Voltage Min:4.5V; Supply Voltage Max:75V; No. of Outputs:1 Output; Duty Cycle (%):85%; Controller IC Case Style:QFN; No. of Pins:16Pins; Switching Frequency:800kHz; Topology:Synchronous Buck (Step Down); Oper

  • 3 件可在 3 - 4 個工作日內出貨
+ 查看存貨和交貨期

  • 3 件可在 3 - 4 個工作日內出貨: 下午 4 點前訂購 (週一至週五,國定假日除外)

2019/8/5 當週起有更多存貨可供選購

每卷

條帶式包裝

1+ NT$72.60 10+ NT$71.52 25+ NT$60.62 100+ NT$55.18 250+ NT$51.55 500+ NT$46.83 1000+ NT$41.39 5000+ NT$35.33 10000+ NT$32.17 其他價格...

新增
最小訂貨量: 1 訂購倍數: 1
171020302
171020302 - DC/DC POL Converter, Adjustable, Synchronous Buck, 2 MHz, 800 mV to 3.6 V out, 2 A, BQFN-39

2577475

WURTH ELEKTRONIK - DC/DC POL Converter, Adjustable, Synchronous Buck, 2 MHz, 800 mV to 3.6 V out, 2 A, BQFN-39

DC/DC CONV, SYNC BUCK, 2MHZ, BQFN-39; DC / DC Converter Type:Module; Input Voltage Min:2.95V; Input Voltage Max:6V; No. of Outputs:1 Output; DC / DC Converter IC Case:BQFN; No. of Pins:39Pins; Output Current:2A; Output Voltage Min:800mV; Output Voltage M

  • 7 件可在 3 - 4 個工作日內出貨
+ 查看存貨和交貨期

  • 7 件可在 3 - 4 個工作日內出貨: 下午 4 點前訂購 (週一至週五,國定假日除外)

2019/8/19 當週起有更多存貨可供選購

每個

1+ NT$325.59 50+ NT$239.93 100+ NT$215.61 250+ NT$211.31

新增
最小訂貨量: 1 訂購倍數: 1
TLE63892GV50XUMA1
TLE63892GV50XUMA1 - DC/DC Controller, Buck, Step Down, 5 V to 60 V Supply, 100 % Duty Cycle, 360 kHz, SOIC-14

2710079

INFINEON - DC/DC Controller, Buck, Step Down, 5 V to 60 V Supply, 100 % Duty Cycle, 360 kHz, SOIC-14

DC/DC CTRL, BUCK, 360KHZ, SOIC-14; Supply Voltage Min:5V; Supply Voltage Max:60V; No. of Outputs:1 Output; Duty Cycle (%):100%; Controller IC Case Style:SOIC; No. of Pins:14Pins; Switching Frequency:360kHz; Topology:Buck (Step Down); Operating Temperatur

  • 1,201 件可在 3 - 4 個工作日內出貨
+ 查看存貨和交貨期

  • 1,201 件可在 3 - 4 個工作日內出貨: 下午 4 點前訂購 (週一至週五,國定假日除外)

2020/6/22 當週起有更多存貨可供選購

每卷

複捲式包裝

1+ NT$65.58 10+ NT$61.41 100+ NT$54.47 250+ NT$50.64 500+ NT$48.12 1000+ NT$45.11 其他價格...

新增
最小訂貨量: 1 訂購倍數: 1
STEVAL-ISA198V1
STEVAL-ISA198V1 - Switching Regulator, 500 kHz Switching Frequency, Step Down DC - DC, 2A, 4.5V - 60V Vin, 5V Vout

2707744

STMICROELECTRONICS - Switching Regulator, 500 kHz Switching Frequency, Step Down DC - DC, 2A, 4.5V - 60V Vin, 5V Vout

EVAL BRD, STEP DOWN SWITCHING REGULATOR; Silicon Manufacturer:STMicroelectronics; Silicon Core Number:L7987L; Kit Application Type:Power Management - Voltage Regulator; Application Sub Type:Step Down Regulator; Kit Contents:Eval Board L7987L; Product Ran

等待發貨 (可延期交貨,將於顯示的交貨期出貨)

+ 查看存貨和交貨期
2019/7/22 當週起有更多存貨可供選購 有貨時聯繫我

每個

1+ NT$1,154.83

新增
最小訂貨量: 1 訂購倍數: 1
LTM4644EY-1#PBF
LTM4644EY-1#PBF - DC/DC POL Converter, Adjustable, Buck, 1 MHz, 4 V to 14 V in, 0.6 V to 5.5 V/4 A out, BGA-77

2723104

LINEAR TECHNOLOGY - DC/DC POL Converter, Adjustable, Buck, 1 MHz, 4 V to 14 V in, 0.6 V to 5.5 V/4 A out, BGA-77

DC/DC CONV, POL, 4A, BUCK, 1MHZ, BGA-77; DC / DC Converter Type:Module; Input Voltage Min:4V; Input Voltage Max:14V; No. of Outputs:4 Output; DC / DC Converter IC Case:BGA; No. of Pins:77Pins; Output Current:4A; Output Voltage Min:600mV; Output Voltage M

无库存

MAX20730EPL+
MAX20730EPL+ - DC/DC POL Converter, Adjustable, Buck, 900 kHz, 4.5 V to 16 V in, 0.6 V to 5.5 V/25 A out, FCQFN-15

2709236

MAXIM INTEGRATED PRODUCTS - DC/DC POL Converter, Adjustable, Buck, 900 kHz, 4.5 V to 16 V in, 0.6 V to 5.5 V/25 A out, FCQFN-15

DC/DC CONV, BUCK, 900KHZ, FCQFN-15; DC / DC Converter Type:Module; Input Voltage Min:4.5V; Input Voltage Max:16V; No. of Outputs:1 Output; DC / DC Converter IC Case:FCQFN; No. of Pins:15Pins; Output Current:25A; Output Voltage Min:600mV; Output Voltage M

无库存