Renesas offers monolithic CMOS voltage conversion ICs that perform supply voltage conversions from positive to negative for an input range of 1.5V to 12V, resulting in complementary output voltages of -1.5V to -12V.

Switched Capacitor Converters

Renesas switched capacitor DC-DC converter technology is at the forefront of optimizing next generation mobile devices, with power efficiency over 98%. These converters can be used in cascaded configuration with PMICs to make 2S battery system power regulation more efficient and reduce PCB board area and component height to less than < 50% and height to < 1 mm, compared to inductor based buck configuration.

This converter family allows system designers to transition from 1S to 2S system without any changes in their power tree. Switched capacitor DC-DC converters can be also used for direct charging of single cell Lithium batteries, reduce routing loss by 75% and enabling the usage of 3A USB cables to deliver up to 6A for charging.

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セレクションテーブル

    Processing table
    型名
    Input Voltage (Min) (V)
    Input Voltage (Max) (V)
    Output Voltage (Min) (V)
    Output Voltage (Max) (V)
    IOUT (Max) (mA)
    IS (Typical)
    IS (mA)
    Switching Frequency Range (Typical) (kHz)
    Qualification Level
    Lead Count (#)
    Pkg. Type
    DA9313
    High Current, Inductor-less Power Converter with Power Efficiency Above 98%    		 5 10.5 0 5.5 10000 500 Standard 43 43-WLCSP
    ICL7660
    CMOS Voltage Converters    		 1.5 10 -1.5 -10 20 170 µA 0.5 10 Standard 8 PDIP, SOICN
    ICL7660A
    CMOS Voltage Converters    		 1.5 12 1.5 22.8 45 80 µA 0.165 10 Standard 8 PDIP, SOICN
    ICL7660S
    Super Voltage Converter    		 1.5 12 1.5 22.8 45 80 µA 0.18 10 - 35 Standard 8 PDIP, SOICN
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    ドキュメント

    タイトル 分類 日付
    AN1681: Grounding Techniques
    PDF509 KB
    アプリケーションノート
    AN1684: Nonideality of Ground
    PDF397 KB
    アプリケーションノート
    AN051: Principles and Applications of the ICL7660 CMOS Voltage Converter
    PDF587 KB
    アプリケーションノート
    AN9601: Using the HI7190 with Single +5V Supply
    PDF262 KB
    アプリケーションノート