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NJW4138 - Internal 45V MOSFET Switching Regulator

General Description

The NJW4138 is a step up switching regulator with 45V, 1.75A power MOSFET.

The NJW4138 has a current mode control, a high frequency oscillating over a wide operating voltage range and an internal phase compensation circuit, so that it provides boost applications with a few external parts.

Key Features

  • Current Mode Control.
  • External Clock Synchronization.
  • Operating Voltage Range 4.5V to 40V.
  • Switching Current 1.75A min.
  • PWM Control.
  • Built-in Compensation Circuit.
  • Correspond to Ceramic Capacitor (MLCC).
  • Oscillating Frequency 2MHz typ. (C ver. ).
  • Soft Start Function 10ms typ.
  • UVLO (Under Voltage Lockout).
  • Over Current Protection (Pulse-by-Pulse type).
  • Thermal Shutdown Protection.
  • Standby Function.
  • Package Outline SOT-8.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NJW4138 Internal 45V MOSFET Switching Regulator IC for Capacitor Charge Boost Converter ■FEATURES ●Current Mode Control ●External Clock Synchronization ●Operating Voltage Range 4.5V to 40V ●Switching Current 1.75A min. ●PWM Control ●Built-in Compensation Circuit ●Correspond to Ceramic Capacitor (MLCC) ●Oscillating Frequency 2MHz typ. (C ver.) ●Soft Start Function 10ms typ. ●UVLO (Under Voltage Lockout) ●Over Current Protection (Pulse-by-Pulse type) ●Thermal Shutdown Protection ●Standby Function ●Package Outline SOT-89-5-2 ■GENERAL DESCRIPTION The NJW4138 is a step up switching regulator with 45V, 1.75A power MOSFET.