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Renesas' single, dual, triple, and quad-output controllers provide step-down efficiency for a wide variety of load currents.

产品选型表

    Processing table
    PLP
    Outputs (#)
    Input Voltage (Min) (V)
    Input Voltage (Max) (V)
    Output Voltage (Min) (V)
    Output Voltage 1 (Max) (V)
    Output Current 1 (Max) (A)
    Bias Voltage Range (V)
    DDR Capable
    Linear Output
    Switching Frequency Range (Typical) (kHz)
    Output Voltage 2 (Max)
    Output Voltage 3 (Max)
    Output Voltage 4 (Max)
    Output Voltage 5 (Max)
    IS (Typical)
    Output Voltage (Max) (V)
    VBIAS (Min) (V)
    VBIAS (Max) (V)
    VID
    Input Voltage Range (V)
    Parametric Applications
    Qualification Level
    Lead Count (#)
    Pkg. Type
    Simulation Model Available
    器件号
    ISL6227
    Dual Mobile-Friendly PWM Controller with DDR Option    		 N/A 2 3.3 24 0.9 5.5 16 5 是的 否 300 Standard 28 QFN, QSOP
    ISL6228
    High-Performance Dual-Output Buck Controller for Notebook Applications    		 N/A 2 3.3 25 0.6 5 20 5 否 否 200 - 600 3.3 - 25 Standard 28 TQFN iSim
    ISL6236
    High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers    		 N/A 4 5.5 25 0.7 5.5 20 是的 是的 200 - 500 3.3 (Adj. 0.5 to 2.5) 3.3 or 5 (Adj. 0.7 to 4.5) 3.3 Standard 32 QFN
    ISL6236A
    High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers    		 N/A 4 4.5 25 0.7 5.5 20 是的 是的 200 - 500 3.5 (Adj. 0.5 to 2.5) 3.3 or 5 (Adj. 0.7 to 4.5) 3.3 Standard 32 QFN
    ISL62383
    High-Efficiency, Quad or Triple-Output System Power Supply Controller for Notebook Computers    		 N/A 4 5.5 25 0.6 5.5 20 否 是的 5.5 Adj. 5 Standard 28 TQFN
    ISL62386
    High-Efficiency, Quad Output System Power Supply Controller for Notebook Computers    		 N/A 4 5.5 25 0.6 5.5 20 否 是的 5.5 3.3 5 Standard 32 TQFN
    ISL62392
    High-Efficiency, Triple-Output System Power Supply Controller for Notebook Computers    		 N/A 3 5.5 25 0.6 5.5 20 否 是的 200 - 600 5.5 3.3 Standard 28 TQFN
    ISL62392C
    High-Efficiency, Triple-Output System Power Supply Controller for Notebook Computers    		 N/A 3 5.5 25 0.6 5.5 20 否 是的 200 - 600 5.5 3.3 Standard 28 TQFN
    ISL6269A
    High-Performance Notebook PWM Controller    		 N/A 1 5 25 0.6 3.3 25 5 否 否 3.3 5 5 5 - 25 Standard 16 QFN iSim
    ISL6269B
    High-Performance Notebook PWM Controller with Audio-Frequency Clamp    		 N/A 1 7 25 0.6 3.3 25 5 否 否 3.3 5 5 7 - 25 Standard 16 QFN
    ISL6271A
    Integrated XScale Regulator    		 N/A 3 2.76 5.5 0.85 1.6 0.8 3.7 否 是的 1200 1.1 1.3 Standard 20 QFN
    ISL62870
    PWM DC/DC Voltage Regulator Controller    		 N/A 1 3.3 25 0.5 5 否 否 3.3 4.75 5.25 Yes GPU core power, I/O Controller Hub, Memory Controller Hub Standard 16 uTQFN
    ISL62871
    PWM DC/DC Controller With VID Inputs for Portable GPU Core-Voltage Regulator    		 N/A 1 3.3 25 0.5 5 否 否 3.3 4.75 5.25 Yes GPU core power, I/O Controller Hub, Memory Controller Hub Standard 16 uTQFN
    ISL6341
    5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller    		 N/A 1 1.5 12 0.8 4.5 - 14.4 否 否 7 mA 12 4.5 14.4 Standard 10 TDFN
    ISL6341A
    5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller    		 N/A 1 1.5 12 0.8 4.5 - 14.4 否 否 7 mA 12 4.5 14.4 Standard 10 TDFN iSim
    ISL6520A
    Single Synchronous Buck Pulse-Width Modulation (PWM) controller    		 N/A 1 2.5 5 0.8 5 否 否 3.2 mA 5 5 5 Standard 8 SOICN
    ISL6522B
    Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller    		 N/A 1 2.5 12 0.8 12 否 否 5 mA 12 12 12 Standard 16 QFN
    ISL6537
    ACPI Regulator/Controller for Dual Channel DDR Memory Systems    		 N/A 4 4.5 5.5 0.8 5.5 25 5 是的 是的 250 2.75 Adj. Adj. Standard 28 QFN
    ISL6537A
    ACPI Regulator/Controller for Dual Channel DDR Memory Systems    		 N/A 5 4.5 5.5 0.8 5.5 25 5 是的 是的 250 2.75 Adj. Adj. Adj. Standard 28 QFN
    ISL6545
    5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller    		 N/A 1 1 12 0.6 5 - 12 否 否 3.2 mA 5 4.5 14.4 Standard 8 SOICN iSim
    ISL6545A
    5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller    		 N/A 1 1 12 0.6 5 - 12 否 否 3.2 mA 5 4.5 14.4 Standard 8 SOICN iSim
    ISL78210
    Automotive PWM DC/DC Voltage Controller    		 N/A 1 3.3 25 0.5 3.3 4.75 - 5.25 否 否 3.3 4.75 5.25 Automotive 16 uTQFN
    ISL78268
    55V Synchronous Buck Controller with Integrated 3A Driver    		 N/A 1 5 55 1.6 4.75 - 5.5 否 否 5 mA 4.75 5.5 No Automotive Power Automotive 24 QFN
    ISL8105
    +5V or +12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers    		 N/A 1 1 12 0.6 5 - 12 否 否 3.2 mA 5 4.9 14.4 Standard 8, 10 DFN, SOICN iSim
    ISL8105A
    +5V or +12V Single-Phase Synchronous Buck Converter PWM Controller with Integrated MOSFET Gate Drivers    		 N/A 1 1 12 0.6 5 - 12 否 否 3.2 mA 5 4.9 14.4 Standard 10, 8 DFN, SOICN iSim
    ISL8112
    High Light-Load Efficiency, Dual-Output, Main Power Supply Controllers    		 N/A 2 5.5 25 0.7 5.5 30 是的 是的 200 - 500 2.5 Standard 32 QFN
    ISL8117
    Synchronous Step-Down PWM Controllers    		 2033 12月 1 4.5 60 0.6 4.5 - 5.5 否 否 2.5 mA 54 Industrial POL and general purpose segments Standard 16 QFN, TSSOP-EP iSim
    ISL8117A
    Synchronous Step-Down PWM Controllers    		 2033 12月 1 4.5 60 0.6 4.5 - 5.5 否 否 2.5 mA 54 Industrial POL and general purpose segments Standard 16 QFN iSim
    ISL8126
    Dual/n-Phase Buck PWM Controller with Integrated Drivers    		 N/A 2 3 26.5 0.6 2.97 - 5.6 否 否 23.85 No VID Power Supply for Datacom/Telecom and POL | Paralleling Power Module | Wide and Narrow Input Voltage Range Buck Regulators Standard 32 QFN
    ISL8130
    Advanced Single Universal Pulse-Width Modulation (PWM) Controller    		 N/A 1 4.5 28 .6 否 否 32 No Standard 20 QFN, QSOP
    ISL81802
    80V Dual Synchronous Buck Controller    		 2033 12月 2 4.5 80 0.8 76 20 否 否 100 - 1000 76 Standard 38, 32 TQFN, TSSOP-EP
    ISL81806
    80V Dual Synchronous Buck Controller Optimized to Drive E-mode GaN FET    		 N/A 2 4.5 80 0.8 76 20 40 否 否 100 - 2000 76 Standard 32 TQFN
    ISL88550A
    Synchronous Step Down Controller with Sourcing and Sinking LDO Regulator    		 N/A 3 2 25 0.7 3.5 15 5 是的 是的 200 - 600 Standard 28 TQFN
    ISL9440A
    Triple, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller    		 N/A 4 4.5 24 0.8 24 20 5 否 是的 600 Adj. Adj. Standard 32 QFN
    ISL9440B
    Triple Step-Down PWM and Single Linear Controller with Programmable Soft-Start    		 N/A 4 4.5 24 0.8 24 0.8 5 否 是的 300 Adj. Adj. Standard 32 QFN
    ISL95870
    PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator    		 N/A 1 3.3 25 0.5 5 否 否 5 4.75 5.25 Yes GMCH, GPU, ICH Standard 16 uTQFN iSim
    ISL95870A
    PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator    		 N/A 1 3.3 25 0.5 5 否 否 1.2 mA 5 4.75 5.25 Yes GMCH, GPU, ICH Standard 20 uTQFN iSim
    ISL95870B
    PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator    		 N/A 1 3.3 25 0.5 5 否 否 1.2 mA 5 4.75 5.25 Yes GMCH, GPU, ICH Standard 20 QFN iSim
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    文档

    文档标题
    		类型 日期
    AN1663: Designing a Buck Converter
    PDF 279 KB     		应用文档
    How to Charge Supercapacitor Banks for Energy Storage
    PDF 637 KB English(英语)     		白皮书
    为窄导通时间步降转换应用选择合适的PWM控制器
    PDF 448 KB English(英语)     		白皮书
    3 items
    ISL78268 55V Buck Controller and Eval Board

    Learn how to set up and use the ISL78268 55V synchronous buck controller and evaluation board.

    Transcript

    Hi, I'm Ed Kohler, Marketing Manager for Intersil's Automotive Power Management Products. Today I'd like to introduce you to the ISL78268, a 55V synchronized buck controller. Then I'd like to demonstrate how easy it is to order and use the evaluation board.

    The ISL78268 is a fully synchronous buck controller. What stands out about the ISL78268 is its versatility. It integrates a unique set of features I think you'll find very valuable. Some of those features are: a 5V to 55V input range, integrated 3A drivers with adaptive dead-time control, optional constant current regulation, a selection for light load operation between forced PWM mode for low noise or diode emulation mode for improved efficiency. And it also has a comprehensive set of protection features that includes the ability to select between latch-off or hiccup fault response.

    The ISL78268's evaluation board is a great way to try out any of these features. It’s easy to order and to use. To get one, you just need to visit the ISL78268's page on our website. Just click over to the order tab and then scroll down to find the evaluation board's part number. That's ISL78268EVAL1Z.

    When the board arrives, this is what you should get. Inside, you'll find the ISL78268 evaluation board along with documentation. There will be a user guide for the evaluation board and a datasheet for the ISL78268. To get started, all we need is a power supply, a load and some cables. So, I'm using a dual 30V supply that I've set to operate in series mode so I can deliver up to 60V to the input because I want to check out the ISL78268's wide input voltage range. And I've preset my load to 5A so that should do it. Let's get started.

    Okay, let me show you what I've done here. First, I installed jumpers at J28 and J10. This allows the part to automatically be enabled when the input supply comes up. Then I connected my upper meter to the input voltage monitoring test point and I connected my lower meter to the output voltage monitoring test point. Then I connected my supply to the input voltage and my load to the VOUT terminals. Now, if I enable the supply...you can see I've set it up for 48V so I'm regulating 48V at the input to 12V at the output. Now, if I enable the load, we see that we maintain the 12V regulation, as you'd expect.

    Now, I also have put an oscilloscope probe on the phase node so that we can see the switching action. If we look at the oscilloscope, we see that we're switching at 300kHz which is default and the phase node is going between ground and being at 48V, as we'd expect. Here I can demonstrate the overvoltage response at the input.

    So if I increase the input voltage to over 55V, at typically around 58V the overvoltage protection will kick in and stop the part from switching. And there we have it, stop switching. Now, if we allow the voltage to come back down below the overvoltage threshold, we see that the switching starts again and we're regulating again at 12V. The evaluation board lets you check out all the features of the ISL78268, and don't worry, the documentation will walk you through how to do all of that.

    Video List
    ISL78268 55V Buck Controller and Eval Board
    ISL8117 Synchronous Step-down PWM Controller
    ISL8117/A 60V Synchronous Buck Controller Webinar