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Buck Regulators (Integrated FETs)
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Renesas offers a wide portfolio of high-performance buck regulators with integrated FETs. A buck converter, also known as a step-down converter, is a DC/DC power converter that provides voltage step down and current step up. The converter reduces the voltage when the power source has a higher voltage than Vout of the regulator. A buck converter generally provides the most efficient solution with the smallest external components.
Unsure if a low powered linear regulator or highly efficient switching regulator is a better option for your design? Learn more about Linear vs. Switching Regulators.
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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 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Part Number | |||||||||||||||||
| Integrated FET 30V, 5A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 Dec | Buck | 1 | 4.5 | 30 | 0.8 | 27 | 5 | 200 - 800 | Peak Current Mode | 90 | 90 | No | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 42V, 5A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 Dec | Buck | 1 | 4.5 | 42 | 0.8 | 36 | 5 | 200 - 800 | Peak Current Mode | 90 | 90 | No | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 60V, 3A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 Dec | Buck | 1 | 4.5 | 60 | .8 | 55 | 3 | 200 - 800 | Peak Current Mode | 91 | 90 | No | Standard | 20, 16 | QFN, TSSOP-EP | iSim |
| Integrated FET 75V, 2A Synchronous Buck Regulator with Internal Compensation and Programmable Frequency | 2033 Dec | Buck | 1 | 4.5 | 75 | 0.8 | 65 | 2 | 200 - 800 | Peak Current Mode | 90 | 90 | No | 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 | No | 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 | Yes | 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 | No | 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 | No | Standard | 50 | QFN | iSim | |
| Compact Synchronous Buck Converter | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 800 - 1200 | Current Mode | 95 | No | 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 | No | 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 | No | Standard | 8 | TDFN | |
| Compact Synchronous Buck Regulators | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 1.5 | 1700 - 2300 | Current Mode | 95 | 35 | No | Standard | 8 | TDFN | iSim |
| Compact Synchronous Buck Regulators | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 2 | 850 - 1150 | Current Mode | 95 | 35 | No | 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 | No | Standard | 8 | TDFN | ||
| Compact Synchronous Buck Converter | N/A | Buck | 1 | 2.7 | 5.5 | 0.6 | 4 | 2 | 1640 - 2360 | Current Mode | 95 | No | 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 | No | 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 | No | 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 | No | Standard | 8 | DFN | iSim | |
| 3A Synchronous Buck Converter in 2x2 DFN Package | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 2000 | Current Mode | 95 | No | 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 | No | 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 | No | 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 | No | 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 | No | 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 | Yes | 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 | Yes | 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 | Yes | 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 | Yes | 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 | Yes | Standard | 20 | QFN | iSim |
| Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator | 2033 Dec | Buck | 2 | 2.8 | 5.5 | 0.6 | 5.5 | 2 | 2250 | Current Mode | 97 | 40 | Yes | Standard | 12 | DFN | |
| Compact Synchronous Buck Regulator | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 500 - 4000 | Current Mode | 95 | 50 | Yes | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 3 | 500 - 4000 | Current Mode | 95 | 50 | Yes | 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 | Yes | 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 | Yes | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulator | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 5 | 500 - 4000 | Current Mode | 95 | 50 | Yes | Standard | 16 | TQFN | iSim |
| Compact Synchronous Buck Regulator | 2033 Dec | Buck | 1 | 2.7 | 5.5 | 0.6 | 5.5 | 5 | 500 - 4000 | Current Mode | 95 | 50 | Yes | 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 | Yes | Standard | 16 | TQFN | |
| Compact Synchronous Buck Regulators | 2033 Dec | Buck | 1 | 2.5 | 5.5 | 0.6 | 5.5 | 6 | 490 - 4200 | Current Mode | 95 | 50 | Yes | 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 | Yes | 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 | Yes | Standard | 24 | QFN | iSim | |
| Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator | 2033 Dec | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 1000 | Current Mode | 95 | Yes | Standard | 24 | QFN | iSim | |
| Dual 3A 2.5MHz High Efficiency Synchronous Buck Regulator | 2033 Dec | Buck | 2 | 2.85 | 6 | 0.8 | 6 | 3 | 2500 | Current Mode | 95 | Yes | Standard | 24 | QFN | iSim | |
| Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator | 2033 Dec | Buck | 2 | 2.75 | 5.5 | 0.6 | 5.5 | 0.8 | 2250 | Current Mode | 96 | Yes | Standard | 10 | DFN | ||
| Highly Efficient 3A Synchronous Buck Regulator | N/A | Buck | 1 | 4.5 | 18 | 0.8 | 15 | 3 | 500 | Current Mode | 95 | Yes | 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 | Yes | 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 | Yes | 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 | Yes | 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 | Yes | 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 | Yes | 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 | Yes | Standard | 15 | QFN | iSim | |
| Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current | 2033 Dec | Buck | 2 | 4.5 | 28 | 0.8 | 28 | 3 | 300 - 2000 | Current Mode | 92 | Yes | Standard | 28 | TQFN | iSim |
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Documentation
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|
Date | |
|---|---|---|
| PDF 19.79 MB 日本語 | Brochure | |
| PDF 1.07 MB | White Paper | |
| PDF 468 KB | White Paper | |
| PDF 526 KB | White Paper | |
| PDF 378 KB | White Paper | |
| PDF 431 KB 简体中文 | White Paper | |
| PDF 279 KB | Application Note | |
7 items
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Videos & Training
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