NJW4150

NJW4150 Internal 34V MOSFET Switching Regulator IC for Buck Converter GENERAL DESCRIPTION The NJW4150 is a switching regulator IC for buck converter with 34V, 450mA MOSFET. It corresponds to high frequency oscillating, wide input voltage and Low ESR Output Capacitor (MLCC). Therefore, the NJW4150 can realize downsizing of applications with a few external parts. Also, it has a soft start function, over current protection and thermal shutdown circuit. It is suitable for power supply circuit of Car Accessory, Office Automation Equipment, Industrial Instrument and so on. ■ PACKAGE OUTLINE NJW4150RB1 FEATURES Absolute Maximum Rating 42V Operating Voltage Range 6V to 34V Switching Current 450mA min. PWM switching control Applicable for Ceramic Capacitor (MLCC) Oscillation Frequency 1MHz typ. (A ver.) Soft Start Function 4ms typ. Over Current and Thermal Shutdown Protection Standby Function Package Outline NJW4150RB1 : TVSP8 http://www.DataSheet4U.net/ ■PIN CONFIGURATION 1 2 3 4 8 7 6 5 NJW4150RB1 PIN FUNCTION 1. SW 2. N.C. 3. V+ 4. ON/OFF 5. FB 6. IN7. N.C. 8. GND Ver.2011-02-25 -1datasheet pdf - http://www.DataSheet4U.net/ NJW4150 ■BLOCK DIAGRAM V+ ON/OFF High: ON Low : OFF (Standby) Standby ON/OFF UVLO OCP Pulse by Pulse Low Frequency Control PWM ER⋅AMP OSC Buffer FB IN- SW Vref 1.0V Soft Start TSD GND PRODUCT VERSION PART NUMBER NJW4150RB1-A Oscillation Frequency 1,000kHz http://www.DataSheet4U.net/ ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL Supply V...