NJW4158

NJW4158 Switching Regulator IC for Buck Converter Current Mode Control w/ 40V/8A MOSFET GENERAL DESCRIPTION The NJW4158 is a current mode controlled buck converter with 40V/8A MOSFET that operates wide input range from 6V to 35V. The NJW4158 can realize a buck converter with minimal external components that it includes compensation circuit. The NJW4158 is able to stable startup by soft start function. Also, it has over current protection and thermal shutdown circuit. It is suitable for supplying power to an Office Automation Equipment, Industrial Instrument, Amusement, Wireless Base Station Applications and so on. ■ PACKAGE OUTLINE 1234 FEATURES Current Mode Control Wide Input Range: Switching Current PWM Control Built-in Compensation Circuit Oscillating Frequency: Soft Start Function UVLO (Under Voltage Lockout) Over Current Protection Thermal Shutdown Function Package Outline BLOCK DIAGRAM V+ SLOPE COMP. TSD CURRENT SENSE OCP NJW4158F 6V to 40V 10.5A min. NJW4158FL PIN CONFIGURATION 1. V+ 2. SW 3. GND 4. IN- 150kHz typ. 10ms typ. http://www.DataSheet4U.net/ TO-220F-4pin UVLO Low Frequency Control Source OSC S Q R Buffer Drain INER⋅AMP Soft Start Vref 0.8V PWM SW GND Ver.2012-08-06 -1datasheet pdf - http://www.DataSheet4U.net/ NJW4158 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Supply Voltage V+ Drain – Source pin Voltage VDSS IN- pin Voltage VINPower Dissipation PD Junction Temperature Range Tj Operating Temperature Range Topr Storage Temperature Range Tstg (T...