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 Vin. 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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セレクションテーブル

    Processing table
    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
    D2852
    Hybrid Converter for 12V to 5V AND 2S/3S to 1S    		 いいえ
    EL7530
    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
    EL7531
    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
    EL7536
    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
    ISL65426
    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
    ISL80015
    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
    ISL80015A
    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
    ISL80019
    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
    ISL80019A
    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
    ISL8002
    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
    ISL80020
    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
    ISL80020A
    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
    ISL8002A
    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
    ISL8002B
    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
    ISL80030
    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
    ISL80030A
    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
    ISL80031
    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
    ISL80031A
    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
    ISL8009A
    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
    ISL8012
    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
    ISL8013
    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
    ISL8013A
    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
    ISL8014A
    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
    ISL8016
    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
    ISL8018
    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
    ISL8022
    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
    ISL8023
    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
    ISL8023A
    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
    ISL8024
    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
    ISL8024A
    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
    ISL8025
    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
    ISL8025A
    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
    ISL8026
    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
    ISL8026A
    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
    ISL8033
    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
    ISL8033A
    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
    ISL8036
    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
    ISL8036A
    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
    ISL8088
    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
    ISL85003
    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
    ISL85003A
    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
    ISL85005
    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
    ISL85005A
    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
    ISL85009
    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
    ISL85012
    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
    ISL85014
    14A, 3.8V to 18V Input, Synchronous Buck Regulator    		 Buck 1 3.8 18 0.6 5 14 300 - 600 Current Mode 98 はい Standard 15 QFN iSim
    ISL85033
    Wide VIN Dual Standard Buck Regulator With 3A/3A Continuous Output Current    		 Buck 2 4.5 28 0.8 28 3 300 - 2000 Current Mode 92 はい Standard 28 TQFN iSim
    ISL85403
    2.5A Regulator with Integrated High-Side MOSFET for Synchronous Buck or Boost Buck Converter    		 Buck or Boost 1 3 40 0.8 36 2.5 200 - 2200 Current Mode 96 300 はい Standard 20 QFN iSim
    ISL85410
    Wide VIN 1A Synchronous Buck Regulator    		 Buck 1 3 40 0.6 34 1 300 - 2000 Current Mode 94 80 はい Standard 12 DFN iSim
    ISL854102
    Wide VIN 1.2A Synchronous Buck Regulator    		 Buck 1 3 40 0.6 34 1.2 300 - 2000 Current Mode 93 80 はい Standard 12 DFN
    Parametric Table tips

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    ドキュメント

    タイトル 分類 日付
    AN1663: Designing a Buck Converter
    PDF279 KB
    アプリケーションノート
    ビルディング・オートメーション　カタログ
    PDF10.65 MBEnglish
    カタログ
    Doing More with Buck Regulator ICs
    PDF1.07 MB
    ホワイトペーパー
    How to Reconfigure a Buck Converter for Multiple Outputs
    PDF468 KB
    ホワイトペーパー
    How to Configure the Tracking and Power Sequencing of FPGAs
    PDF526 KB
    ホワイトペーパー
    How to Protect Buck Regulators from Overcurrent Damage
    PDF378 KB
    ホワイトペーパー
    How to Charge Supercapacitor Banks for Energy Storage
    PDF431 KB
    ホワイトペーパー

    ビデオ&トレーニング

    12V Sync Buck Regulator Family Delivers Up to 14A

    Find out how Intersil's high efficient, compact 12V synchronous buck regulator family can meet your power requirements for 12V rails in industrial and infrastructure applications.

    Transcript

    12V Synchronous Buck Regulator Family

    Today I would like to introduce one of the most efficient and compact synchronous buck regulator families in the marketplace today.

    There are many 12V rails in industrial applications today that need a buck converter to step the voltage down to a lower voltage and deliver up to 14A. Some of these applications often require a very efficient and compact solution. The highly integrated buck regulators listed here allow the users to meet all these requirements.

    The ISL85009, ISL85012 and ISL85014 are pin compatible, very efficient and are able to deliver up to 14A. In applications that need less than 5A, Renesas offers ISL85003 and ISL85005 that are pin compatible. The ISL85009, ISL85012 and ISL85014 can operate from 3.8V to 18V input voltage, and the output voltage can be set as low as 0.6V. This family is highly integrated. The high-side and low-side FETs, with a bootstrap diode and compensation circuits are all integrated which helps to reduce the size, cost and bill of material.

    This family is also highly reliable. It has high-side and low-side overcurrent protection, input and output overvoltage protection, over-temperature protection and negative current protection all integrated in the IC. This family also provides full feature sets and design flexibility to customers.

    For instance, the selectable OCP scheme feature gives flexibility to the power supply designer to choose between hiccup and latch-off OCP mode, depending on their application requirements. Finally, the ISL85009, ISL85012 and ISL85014 are pin compatible, highly efficient and capable of delivering up to 14A in a very small 3.5mm x 3.5mm TQFN package.

    As you see in the efficiency curve here, the ISL85009 provides one of the most efficient solution in the marketplace today. To support our customers with this family, we have developed several evaluation and demo boards.

    Supporting tools such as iSim model, PowerCompass, schematic and Gerber files are all available online for this family on our website. 

    Video List