ルネサスは、FETを内蔵した高性能な降圧レギュレータの幅広いラインアップを提供しています。 降圧コンバータは、ステップダウンコンバータとも呼ばれ、電圧の降圧により電流の増加を行うDC/DC電力コンバータです。 Vinの電圧が、要求される負荷電圧より高いとき、コンバータにより電圧を下げます。 一般に、降圧コンバータは、最小の外付け部品で最も効率的なソリューションを提供します。
低消費電力のリニア・レギュレータと高効率のスイッチング・レギュレータのどちらがお客様の設計に適しているかお迷いですか。 リニア・レギュレータとスイッチング・レギュレータについての詳細をご覧ください。
型名 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Integrated FET 30V, 5A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | Buck | 1 | 4.5 | 30 | 0.8 | 27 | 5 | 200 - 800 | Peak Current Mode | 90 | 90 | いいえ | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 42V, 5A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | Buck | 1 | 4.5 | 42 | 0.8 | 36 | 5 | 200 - 800 | Peak Current Mode | 90 | 90 | いいえ | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 60V, 3A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | Buck | 1 | 4.5 | 60 | .8 | 55 | 3 | 200 - 800 | Peak Current Mode | 91 | 90 | いいえ | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 75V, 2A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | Buck | 1 | 4.5 | 75 | 0.8 | 65 | 2 | 200 - 800 | Peak Current Mode | 90 | 90 | いいえ | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 75V, 3A Asynchronous Buck Regulator with Internal Compensation and Programmable Frequency | Buck | 1 | 4.5 | 75 | 0.8 | 65 | 3 | 200 - 800 | Peak Current Mode | 87 | 90 | いいえ | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Hybrid Converter for 12V to 5V AND 2S/3S to 1S | いいえ | |||||||||||||||
| Monolithic 600mA Step-Down Regulator with Low Quiescent Current | Buck | 1 | 2.5 | 5.5 | 0.8 | 5.5 | 0.6 | 1500 | Voltage Mode | 94 | 120 | はい | Standard | 10 | MSOP | |
| Monolithic 1A Step-Down Regulator with Low Quiescent Current | Buck | 1 | 2.5 | 5.5 | 0.8 | 5.5 | 1 | 1400 | Voltage Mode | 94 | 120 | はい | Standard | 10 | MSOP | |
| Monolithic 1A Step-Down Regulator | Buck | 1 | 2.5 | 5.5 | 0.8 | 5.5 | 1 | 1400 | Voltage Mode | 94 | いいえ | Standard | 10 | MSOP | ||
| 6A Dual Synchronous Buck Regulator with Integrated MOSFETs | Buck | 2 | 3 | 5.5 | 1 | 5.5 | 6 | 1000 | Current Mode | 95 | いいえ | Standard | 50 | QFN | iSim | |
| Compact Synchronous Buck Converter | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 800 - 1200 | Current Mode | 95 | いいえ | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Converter | Buck | 1 | 2.7 | 5.5 | 0.6 | 4 | 1.5 | 1640 - 2360 | Current Mode | 95 | いいえ | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Regulators | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 850 - 1150 | Current Mode | 95 | 35 | いいえ | Standard | 8 | TDFN | |
| Compact Synchronous Buck Regulators | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 1700 - 2300 | Current Mode | 95 | 35 | いいえ | Standard | 8 | TDFN | iSim |
| Compact Synchronous Buck Regulators | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 2 | 850 - 1150 | Current Mode | 95 | 35 | いいえ | Standard | 8 | TDFN | iSim |
| Compact Synchronous Buck Converter | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 2 | 800 - 1200 | Current Mode | 95 | いいえ | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Converter | Buck | 1 | 2.7 | 5.5 | 0.6 | 4 | 2 | 1640 - 2360 | Current Mode | 95 | いいえ | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Regulators | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 2 | 1700 - 2300 | Current Mode | 95 | 35 | いいえ | Standard | 8 | TDFN | iSim |
| Compact Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 4 | 2 | 1700 - 2300 | Current Mode | 95 | 35 | いいえ | Standard | 8 | TDFN | iSim |
| 3A Synchronous Buck Converter in 2x2 DFN Package | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 1000 | Current Mode | 95 | いいえ | Standard | 8 | DFN | iSim | |
| 3A Synchronous Buck Converter in 2x2 DFN Package | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 2000 | Current Mode | 95 | いいえ | Standard | 8 | DFN | iSim | |
| 3A Synchronous Buck Converter in 2x2 DFN Package | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 1000 | Current Mode | 95 | いいえ | Standard | 8 | DFN | iSim | |
| 3A Synchronous Buck Converter in 2x2 DFN Package | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 2000 | Current Mode | 95 | いいえ | Standard | 8 | DFN | iSim | |
| 1.5A Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.8 | 5.5 | 1.5 | 1600 | Current Mode | 95 | 17 | いいえ | Standard | 8 | DFN | iSim |
| 2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.8 | 5.5 | 2 | 1000 | Current Mode | 95 | 40 | いいえ | Standard | 10 | DFN | |
| 3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.8 | 5.5 | 3 | 1000 | Current Mode | 97 | 35 | はい | Standard | 16 | QFN | iSim |
| 3A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | Buck | 1 | 2.8 | 5.5 | 0.8 | 5.5 | 3 | 1000 | Current Mode | 97 | 35 | はい | Standard | 16 | QFN | iSim |
| 4A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator | Buck | 1 | 2.8 | 5.5 | 0.8 | 5.5 | 4 | 1000 | Current Mode | 97 | 35 | はい | Standard | 16 | QFN | iSim |
| 6A Low Quiescent Current High Efficiency Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 6 | 500 - 4000 | Current Mode | 97 | 70 | はい | Standard | 20 | QFN | iSim |
| 8A Low Quiescent Current High Efficiency Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 8 | 500 - 4000 | Current Mode | 97 | 70 | はい | Standard | 20 | QFN | iSim |
| Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator | Buck | 2 | 2.8 | 5.5 | 0.6 | 5.5 | 2 | 2250 | Current Mode | 97 | 40 | はい | Standard | 12 | DFN | |
| Compact Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 500 - 4000 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 500 - 4000 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 4 | 500 - 4000 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 4 | 500 - 4000 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 5 | 500 - 4000 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 5 | 500 - 4000 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulators | Buck | 1 | 2.5 | 5.5 | 0.6 | 5.5 | 6 | 490 - 4200 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulators | Buck | 1 | 2.5 | 5.5 | 0.6 | 5.5 | 6 | 490 - 4200 | Current Mode | 95 | 50 | はい | Standard | 16 | TQFN | |
| Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 1000 | Current Mode | 95 | はい | Standard | 24 | QFN | iSim | |
| Dual 3A Low Quiescent Current High Efficiency Synchronous Buck Regulator | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 2500 | Current Mode | 95 | はい | Standard | 24 | QFN | iSim | |
| Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 1000 | Current Mode | 95 | はい | Standard | 24 | QFN | iSim | |
| Dual 3A 2.5MHz High Efficiency Synchronous Buck Regulator | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 2500 | Current Mode | 95 | はい | Standard | 24 | QFN | iSim | |
| Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator | Buck | 2 | 2.75 | 5.5 | 0.6 | 5.5 | 0.8 | 2250 | Current Mode | 96 | はい | Standard | 10 | DFN | ||
| Highly Efficient 3A Synchronous Buck Regulator | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 3 | 500 | Current Mode | 95 | はい | Standard | 12 | DFN | iSim | |
| Highly Efficient 3A Synchronous Buck Regulator | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 3 | 500 | Current Mode | 95 | はい | Standard | 12 | DFN | iSim | |
| 4.5V to 18V Input, 5A High Efficiency Synchronous Buck Regulator | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 5 | 500 | Current Mode | 95 | はい | Standard | 12 | DFN | iSim | |
| 4.5V to 18V Input, 5A High Efficiency Synchronous Buck Regulator | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 5 | 500 | Current Mode | 95 | はい | Standard | 12 | DFN | iSim | |
| 9A, 3.8V to 18V Input, Synchronous Buck Regulator | Buck | 1 | 3.8 | 18 | 0.6 | 5 | 9 | 300 - 600 | Current Mode | 97 | はい | Standard | 15 | QFN | iSim | |
| 12A, 3.8V to 18V Input, Synchronous Buck Regulator | Buck | 1 | 3.8 | 18 | 0.6 | 5 | 12 | 100 - 1000 | Current Mode | 97 | はい | Standard | 15 | QFN | iSim |
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.
