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LT8618高输入电压降压稳压器参数介绍及中文PDF下载

来源:ADI  作者:ADI官网   2020-04-27 阅读:834

LT8618
LT8618-3.3相关信息来自ADI官网,具体参数以官网公布为准,LT8618
LT8618-3.3供应信息可在查IC网搜索相关供应商。

产品详情

The LT8618 is a compact, high speed synchronousmonolithIC step-down switching regulator that deliversup to 100mA with high efficiency at constant switchingfrequency, even up to 2.2MHz. It accepts a wide input voltage range up to 65V (transients only, 60V for continuousoperation), and consumes only 2.5µA of quiescent current. Top and bottom power switches are included withall necessary circuitry to minimize the need for externalcomponents. Low ripple Burst Mode operation enableshigh efficiency down to very low output currents whilekeeping the output ripple below 10mVP-P. Additional features provide for flexible and robust operation. Internalcompensation with peak current mode topology allowsthe use of small inductors and results in fast transientresponse and good loop stability. The EN/UV pin has anaccurate 1V threshold and can be used to program VINunder voltage lockout or to shut down the LT8618 reducing the input supply current to 1µA. If there are no faultconditions, a PG flag signals when VOUT is within ±7.5%of the programmed output voltage. Thermal shutdownprovides additional protection. The LT8618 is available ina small 10-Lead 3mm × 2mm DFN package with exposedpad for low thermal resistance.

Applications

  • Industrial Sensors
  • Industrial Internet of Things
  • 4mA to 20mA Current Loops
  • Flow Meters
  • Automotive Housekeeping Supplies

优势和特点

  • High Efficiency Synchronous Operation
    • > 90% Efficiency at 30mA, 12VIN to 3.3VOUT
  • Ultralow Quiescent Current Burst Mode® Operation
    • < 2.5µA IQ Regulating 48VIN to 3.3VOUT
    • Output Ripple < 10mVP-P
  • 3.4V to 60V Input Operation Range (65V Max)
  • Fast Minimum Switch-On Time: 35ns
  • Adjustable Switching Frequency: 200kHz to 2.2MHz

LT8618
LT8618-3.3电路图

LT8618<br>LT8618-3.3

LT8618
LT8618-3.3中文PDF下载地址

LT8618
LT8618-3.3下载链接地址:https://www.analog.com/media/en/technical-documentation/data-sheets/lt8618-8618-3-3.pdf

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