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    DC DC Switching Controllers

    制造商 Series Package/Case Packaging Part Status Output Type Function Topology Number of Outputs Output Phases Qualification Voltage - Supply (Vcc/Vdd) Frequency - Switching Output Configuration Duty Cycle (Max) Synchronous Rectifier Grade Clock Sync Mounting Style Operating Temperature Serial Interfaces Control Features Supplier Device Package





















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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    Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Part Status Output Type Function Topology Number of Outputs Output Phases Qualification Voltage - Supply (Vcc/Vdd) Frequency - Switching Output Configuration Duty Cycle (Max) Synchronous Rectifier Grade Clock Sync Mounting Style Operating Temperature Serial Interfaces Control Features Supplier Device Package
    LM5035SQ/NOPB

    LM5035SQ/NOPB

    LM5035 PWM CONTROLLER WITH INTEG

    National Semiconductor

    40,899
    RFQ
    LM5035SQ/NOPB

    Datasheet

    - 24-WFQFN Exposed Pad Bulk Active Transistor Driver Step-Up/Step-Down Half-Bridge 1 1 - 13V ~ 105V 200kHz, 500kHz Positive, Isolation Capable - Yes - Yes Surface Mount -40°C ~ 125°C (TJ) - Frequency Control, Ramp, Soft Start 24-WQFN (4x5)
    LM3153MHE-3.3/NOPB

    LM3153MHE-3.3/NOPB

    LM3153 SIMPLE SWITCHER CONTROLL

    National Semiconductor

    1,109
    RFQ
    LM3153MHE-3.3/NOPB

    Datasheet

    SIMPLE SWITCHER® 14-PowerTSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Down Buck 1 1 - 8V ~ 18V 750kHz Positive - Yes - No Surface Mount -40°C ~ 125°C (TJ) - Enable, Soft Start 14-HTSSOP
    LM3151MHE-3.3/NOPB

    LM3151MHE-3.3/NOPB

    LM3151 42V SYNCHRONOUS STEP-DOWN

    National Semiconductor

    220
    RFQ
    LM3151MHE-3.3/NOPB

    Datasheet

    SIMPLE SWITCHER® 14-PowerTSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Down Buck 1 1 - 6V ~ 42V 250kHz Positive - Yes - No Surface Mount -40°C ~ 125°C (TJ) - Enable, Soft Start 14-HTSSOP
    LM3495MTC/NOPB

    LM3495MTC/NOPB

    LM3495 EMULATED PEAK CURRENT MOD

    National Semiconductor

    397
    RFQ
    LM3495MTC/NOPB

    Datasheet

    - 16-TSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Down Buck 1 1 - 2.9V ~ 18V 200kHz ~ 1.5MHz Positive 96% Yes - Yes Surface Mount -40°C ~ 125°C (TJ) - Current Limit, Frequency Control, Tracking 16-TSSOP
    LM5041AMTC/NOPB

    LM5041AMTC/NOPB

    LM5041A CASCADED PWM CONTROLLER

    National Semiconductor

    196
    RFQ
    LM5041AMTC/NOPB

    Datasheet

    - 16-TSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Up/Step-Down Half-Bridge, Push-Pull 1 1 - 15V ~ 90V 200kHz, 600kHz Positive - Yes - Yes Surface Mount -40°C ~ 125°C (TJ) - Dead Time Control, Frequency Control, Soft Start 16-TSSOP
    LM3478MM

    LM3478MM

    LM3478 2.97~40V WIDE INPUT RANGE

    National Semiconductor

    6,512
    RFQ
    LM3478MM

    Datasheet

    - 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Bulk Active Transistor Driver Step-Up, Step-Up/Step-Down Boost, Flyback, SEPIC 1 1 - 2.97V ~ 40V 100kHz ~ 1MHz Positive 1 No - No Surface Mount -40°C ~ 125°C (TJ) - Enable, Frequency Control 8-VSSOP
    LM5642XMTX/NOPB

    LM5642XMTX/NOPB

    LM5642X HIGH VOLTAGE, DUAL SYNCH

    National Semiconductor

    3,646
    RFQ
    LM5642XMTX/NOPB

    Datasheet

    - 28-TSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Down Buck 2 2 - 4.5V ~ 36V 375kHz Positive 98.9% Yes - Yes Surface Mount -40°C ~ 125°C (TJ) - Current Limit, Enable, Soft Start 28-TSSOP
    LM5642MTCX/NOPB

    LM5642MTCX/NOPB

    LM5642 4.5-36V, CURRENT MODE DUA

    National Semiconductor

    1,293
    RFQ
    LM5642MTCX/NOPB

    Datasheet

    - 28-TSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Down Buck 2 2 - 4.5V ~ 36V 200kHz Positive 98.9% Yes - Yes Surface Mount -40°C ~ 125°C (TJ) - Current Limit, Enable, Soft Start 28-TSSOP
    LM2647LQ/NOPB

    LM2647LQ/NOPB

    LM2647 DUAL SYNCHRONOUS BUCK REG

    National Semiconductor

    817
    RFQ
    LM2647LQ/NOPB

    Datasheet

    - 28-FQFN Exposed Pad Bulk Active Transistor Driver Step-Down Buck 2 2 - 5.5V ~ 28V 200kHz ~ 500kHz Positive 75% Yes - No Surface Mount -5°C ~ 125°C (TJ) - Current Limit, Enable, Frequency Control, Power Good, Soft Start 28-WQFN (5x5)
    LM2647MTC/NOPB

    LM2647MTC/NOPB

    LM2647 DUAL SYNCHRONOUS BUCK REG

    National Semiconductor

    2,622
    RFQ
    LM2647MTC/NOPB

    Datasheet

    - 28-TSSOP (0.173", 4.40mm Width) Bulk Active Transistor Driver Step-Down Buck 2 2 - 5.5V ~ 28V 200kHz ~ 500kHz Positive 75% Yes - No Surface Mount -5°C ~ 125°C (TJ) - Current Limit, Enable, Frequency Control, Power Good, Soft Start 28-TSSOP
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