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NJW4155 - Internal 1.8A MOSFET Switching Regulator

Description

The NJW4155 is a buck converter with 40V/1.8A MOSFET.

It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.5V to 40V.

Features

  • Current Mode Control External Clock Synchronization Wide Operating Voltage Range 4.5V to 40V Switching Current 2.7A min. PWM Control Built-in Compensation Circuit Correspond to Ceramic Capacitor (MLCC) Oscillating Frequency 450kHz typ. (A, C ver. ) 300kHz typ. (B ver. ) Soft Start Function 4ms typ. UVLO (Under Voltage Lockout) Over Current Protection (Hiccup type) Thermal Shutdown Protection Power Good Function (NJW4155GM1 only) Standby Function Package Outline NJW4155GM1 : HSO.

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NJW4155 Current Mode Control Internal 1.8A MOSFET Switching Regulator IC for Buck Converter GENERAL DESCRIPTION The NJW4155 is a buck converter with 40V/1.8A MOSFET. It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.5V to 40V. Therefore, the NJW4155 can realize downsizing of applications with a few external parts so that adopts current mode control. Also, it has a soft start function, external clock synchronization, over current protection and thermal shutdown circuit. It is suitable for supplying power to a Car Accessory, Office Automation Equipment, Industrial Instrument and so on. FEATURES Current Mode Control External Clock Synchronization Wide Operating Voltage Range 4.5V to 40V Switching Current 2.7A min.
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