供应KF9227 PWM 异步DC-DC升压IC

The KF9227 regulator is a wide input range, current mode, DC/DC converter which is capable of generating either positive or negative output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter. The KF9227 built in N-channel power MOSFET and fixed frequency oscill-ator , current-mode architecture results in st-able operation over a wide range of supply and output voltages.

The KF9227 regulator is special design for portable electronic equipment.

  Features

Wide 3.6V to 24V Input Voltage Range

Positive or Negative Output Voltage Programming with a Single Feedback Pin

Current Mode Control Provides Excellent Transient Response

1.25V reference adjustable version

Fixed 400KHz Switching Frequency

Maximum 2A Switching Current

SW PIN Built in Over Voltage Protection

Excellent line and load regulation

EN PIN TTL shutdown capability

Internal Optimize Power MOSFET

High efficiency up to 90%

Built in Frequency Compensation

Built in Soft-Start Function

Built in Thermal Shutdown Function

Built in Current Limit Function

Available in SOP-8 package

  Application

Automotive and Industrial Boost /Buck-Boost / Inverting Converters

Portable Electronic Equipment

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  异步DC-DC升压IC

 异步DC-DC升压IC

 异步DC-DC升压IC  异步DC-DC升压IC