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瑞萨电子提供丰富并集成 FET 的高性能降压稳压器产品组合。 降压转换器是一种 DC/DC 电源转换器，提供降低电压和提升电流的功能。 当电源电压高于负载电压时，就需要用这种转换器降低电压。通常降压转换器只需最小尺寸外部元件就能实现最高效率的解决方案。
对您的设计而言，如果不确定是低功率线性稳压器好，还是高效率开关稳压器更好？请点击线性稳压器和开关稳压器了解更多。
降压稳压器（集成开关）
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Processing table
PLP |
Topology [Rail 1] |
Outputs (#) |
Input Voltage (Min) [Rail 1] (V) |
Input Voltage (Max) [Rail 1] (V) |
Output Voltage (Min) [Rail 1] (V) |
Output Voltage (Max) [Rail 1] (V) |
Output Current (Max) [Rail 1] (A) |
Switching Frequency Range (Typical) (kHz) |
Control Type |
Peak Efficiency (%) |
IQ [Rail 1] (µA) |
SYNCH Capability |
Qualification Level |
Lead Count (#) |
Pkg. Type |
Simulation Model Available |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 器件号 | |||||||||||||||||
| Integrated FET 30V, 5A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 12月 | Buck | 1 | 4.5 | 30 | 0.8 | 27 | 5 | 200 - 800 | Peak Current Mode | 90 | 90 | 否 | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 42V, 5A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 12月 | Buck | 1 | 4.5 | 42 | 0.8 | 36 | 5 | 200 - 800 | Peak Current Mode | 90 | 90 | 否 | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 60V, 3A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 12月 | Buck | 1 | 4.5 | 60 | .8 | 55 | 3 | 200 - 800 | Peak Current Mode | 91 | 90 | 否 | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 75V, 2A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 12月 | Buck | 1 | 4.5 | 75 | 0.8 | 65 | 2 | 200 - 800 | Peak Current Mode | 90 | 90 | 否 | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 75V, 3A Asynchronous Buck Regulator with Internal Compensation and Programmable Frequency | N/A | Buck | 1 | 4.5 | 75 | 0.8 | 65 | 3 | 200 - 800 | Peak Current Mode | 87 | 90 | 否 | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Monolithic 1A Step-Down Regulator with Low Quiescent Current | N/A | Buck | 1 | 2.5 | 5.5 | 0.8 | 5.5 | 1 | 1400 | Voltage Mode | 94 | 120 | 是的 | Standard | 10 | MSOP | |
| Monolithic 1A Step-Down Regulator | N/A | Buck | 1 | 2.5 | 5.5 | 0.8 | 5.5 | 1 | 1400 | Voltage Mode | 94 | 否 | Standard | 10 | MSOP | ||
| 6A Dual Synchronous Buck Regulator with Integrated MOSFETs | N/A | Buck | 2 | 3 | 5.5 | 1 | 5.5 | 6 | 1000 | Current Mode | 95 | 否 | Standard | 50 | QFN | iSim | |
| Compact Synchronous Buck Converter | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 800 - 1200 | Current Mode | 95 | 否 | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Converter | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 4 | 1.5 | 1640 - 2360 | Current Mode | 95 | 否 | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Regulators | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 850 - 1150 | Current Mode | 95 | 35 | 否 | Standard | 8 | TDFN | |
| Compact Synchronous Buck Regulators | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 1700 - 2300 | Current Mode | 95 | 35 | 否 | Standard | 8 | TDFN | iSim |
| Compact Synchronous Buck Regulators | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 2 | 850 - 1150 | Current Mode | 95 | 35 | 否 | Standard | 8 | TDFN | iSim |
| Compact Synchronous Buck Converter | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 2 | 800 - 1200 | Current Mode | 95 | 否 | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Converter | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 4 | 2 | 1640 - 2360 | Current Mode | 95 | 否 | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Regulators | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 2 | 1700 - 2300 | Current Mode | 95 | 35 | 否 | Standard | 8 | TDFN | iSim |
| Compact Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 4 | 2 | 1700 - 2300 | Current Mode | 95 | 35 | 否 | Standard | 8 | TDFN | iSim |
| 3A Synchronous Buck Converter in 2x2 DFN Package | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 1000 | Current Mode | 95 | 否 | Standard | 8 | DFN | iSim | |
| 3A Synchronous Buck Converter in 2x2 DFN Package | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 2000 | Current Mode | 95 | 否 | Standard | 8 | DFN | iSim | |
| 3A Synchronous Buck Converter in 2x2 DFN Package | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 1000 | Current Mode | 95 | 否 | Standard | 8 | DFN | iSim | |
| 3A Synchronous Buck Converter in 2x2 DFN Package | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 2000 | Current Mode | 95 | 否 | Standard | 8 | DFN | iSim | |
| 1.5A Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.8 | 5.5 | 1.5 | 1600 | Current Mode | 95 | 17 | 否 | Standard | 8 | DFN | iSim |
| 2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.8 | 5.5 | 2 | 1000 | Current Mode | 95 | 40 | 否 | Standard | 10 | DFN | |
| 3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.8 | 5.5 | 3 | 1000 | Current Mode | 97 | 35 | 是的 | Standard | 16 | QFN | iSim |
| 3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 2.8 | 5.5 | 0.8 | 5.5 | 3 | 1000 | Current Mode | 97 | 35 | 是的 | Standard | 16 | QFN | iSim |
| 4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 2.8 | 5.5 | 0.8 | 5.5 | 4 | 1000 | Current Mode | 97 | 35 | 是的 | Standard | 16 | QFN | iSim |
| 6A Low Quiescent Current High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 6 | 500 - 4000 | Current Mode | 97 | 70 | 是的 | Standard | 20 | QFN | iSim |
| 8A Low Quiescent Current High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 8 | 500 - 4000 | Current Mode | 97 | 70 | 是的 | Standard | 20 | QFN | iSim |
| Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator | 2033 12月 | Buck | 2 | 2.8 | 5.5 | 0.6 | 5.5 | 2 | 2250 | Current Mode | 97 | 40 | 否 | Standard | 12 | DFN | |
| Compact Synchronous Buck Regulator | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 500 - 4000 | Current Mode | 95 | 50 | 否 | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 500 - 4000 | Current Mode | 95 | 50 | 否 | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 4 | 500 - 4000 | Current Mode | 95 | 50 | 是的 | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 4 | 500 - 4000 | Current Mode | 95 | 50 | 是的 | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulator | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 5 | 500 - 4000 | Current Mode | 95 | 50 | 否 | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | 2033 12月 | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 5 | 500 - 4000 | Current Mode | 95 | 50 | 否 | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulators | N/A | Buck | 1 | 2.5 | 5.5 | 0.6 | 5.5 | 6 | 490 - 4200 | Current Mode | 95 | 50 | 是的 | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulators | 2033 12月 | Buck | 1 | 2.5 | 5.5 | 0.6 | 5.5 | 6 | 490 - 4200 | Current Mode | 95 | 50 | 否 | Standard | 16 | TQFN | |
| Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator | N/A | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 1000 | Current Mode | 95 | 是的 | Standard | 24 | QFN | iSim | |
| Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator | N/A | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 2500 | Current Mode | 95 | 是的 | Standard | 24 | QFN | iSim | |
| Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator | 2033 12月 | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 1000 | Current Mode | 95 | 否 | Standard | 24 | QFN | iSim | |
| Dual 3A 2.5MHz High Efficiency Synchronous Buck Regulator | 2033 12月 | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 2500 | Current Mode | 95 | 否 | Standard | 24 | QFN | iSim | |
| Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator | 2033 12月 | Buck | 2 | 2.75 | 5.5 | 0.6 | 5.5 | 0.8 | 2250 | Current Mode | 96 | 否 | Standard | 10 | DFN | ||
| Highly Efficient 3A Synchronous Buck Regulator | N/A | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 3 | 500 | Current Mode | 95 | 是的 | Standard | 12 | DFN | iSim | |
| Highly Efficient 3A Synchronous Buck Regulator | N/A | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 3 | 500 | Current Mode | 95 | 是的 | Standard | 12 | DFN | iSim | |
| 4.5V to 18V Input, 5A High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 5 | 500 | Current Mode | 95 | 是的 | Standard | 12 | DFN | iSim | |
| 4.5V to 18V Input, 5A High Efficiency Synchronous Buck Regulator | N/A | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 5 | 500 | Current Mode | 95 | 是的 | Standard | 12 | DFN | iSim | |
| 9A, 3.8V to 18V Input, Synchronous Buck Regulator | N/A | Buck | 1 | 3.8 | 18 | 0.6 | 5 | 9 | 300 - 600 | Current Mode | 97 | 是的 | Standard | 15 | QFN | iSim | |
| 12A, 3.8V to 18V Input, Synchronous Buck Regulator | N/A | Buck | 1 | 3.8 | 18 | 0.6 | 5 | 12 | 100 - 1000 | Current Mode | 97 | 是的 | Standard | 15 | QFN | iSim | |
| 14A, 3.8V to 18V Input, Synchronous Buck Regulator | N/A | Buck | 1 | 3.8 | 18 | 0.6 | 5 | 14 | 300 - 600 | Current Mode | 98 | 是的 | Standard | 15 | QFN | iSim | |
| Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current | 2033 12月 | Buck | 2 | 4.5 | 28 | 0.8 | 28 | 3 | 300 - 2000 | Current Mode | 92 | 否 | Standard | 28 | TQFN | iSim |
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文档
| Document title | Document type
|
日期 日期 | |
|---|---|---|---|
| PDF 279 KB | 应用文档 | ||
| PDF 19.79 MB 日文 | 手册 | ||
| PDF 1.07 MB | 白皮书 | ||
| PDF 468 KB | 白皮书 | ||
| PDF 526 KB | 白皮书 | ||
| PDF 378 KB | 白皮书 | ||
| PDF 637 KB English(英语) | 白皮书 | ||
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play_circle_filled视频和培训
Portfolio of 30V-75V Bucks Power the Highest-Precision Loads with Excellent Accuracy
The RAA211x family of bucks are highly scalable due to its unique pin-compatible wide Vin buck variants with integrated FETs that support up to 5A of continuous output current with premium load and line regulation performance. The RAA211835 supports 75V async buck operation of 3A loadings, while RAA211250/450/630/820 support sync buck operation of 30V 5A, 40V 5A, 60V 3A, 75V 2A respectively.
Video List