MAX618

28V、PWM、升压型DC-DC转换器

高压、大电流升压转换器,QSOP封装,还可提供SEPIC、反激拓扑


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说明

The MAX618 CMOS, PWM, step-up DC-DC converter generates output voltages up to 28V and accepts inputs from +3V to +28V. An internal 2A, 0.3Ω switch eliminates the need for external power MOSFETs while supplying output currents up to 500mA or more. A PWM control scheme combined with Idle Mode™ operation at light loads minimizes noise and ripple while maximizing efficiency over a wide load range. No-load operating current is 500µA, which allows efficiency up to 93%.

A fast 250kHz switching frequency allows the use of small surface-mount inductors and capacitors. A shutdown mode extends battery life when the device is not in use. Adaptive slope compensation allows the MAX618 to accommodate a wide range of input and output voltages with a simple, single compensation capacitor.

The MAX618 is available in a thermally enhanced 16-pin QSOP package that is the same size as an industry-standard 8-pin SO but dissipates up to 1W. An evaluation kit (MAX618EVKIT) is available to help speed designs.
MAX618:典型工作电路 MAX618:典型工作电路 放大+

关键特性

  • Adjustable Output Voltage Up to +28V
  • Up to 93% Efficiency
  • Wide Input Voltage Range (+3V to +28V)
  • Up to 500mA Output Current at +12V
  • 500µA Quiescent Supply Current
  • 3µA Shutdown Current
  • 250kHz Switching Frequency
  • Small 1W, 16-Pin QSOP Package

应用

  • 工业+24V和+28V系统
  • LCD显示器
  • 掌上电脑
Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
Preset VOUT
(V)
IOUT1
(A)
Output Adjust. MethodSwitch TypeICC
(mA)
Shutdown Mode Supply Current
(µA)
Shutdown Mode Supply Current
(µA)
DC-DC OutputsOper. Freq.
(kHz)
Package/PinsBudgetary
Price
minmaxminmaxmaxtyptypmaxSee Notes
MAX618 328328120.5ResistorInternal0.5381250
QSOP/16
$4.02 @1k
查看所有Step-Up Switching Regulators (101)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX618EVKIT: MAX618评估板
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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    类型 编号 标题
    评估板2041MAX618EVKIT MAX618评估板