NJW4153

NJW4153 Switching Regulator IC for Buck Converter Current Mode Control w/ 40V/1A MOSFET GENERAL DESCRIPTION The NJW4153 is a buck converter with 40V/1A MOSFET. It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.6V to 40V. Therefore, the NJW4153 can realize downsizing of applications with a few external parts so that adopts current mode control. Also, it has a soft start function, an over current protection and a thermal shutdown circuit. It is suitable for power supply circuit of Micro Processor, DSP and so on that need fast transient response. FEATURES Current mode Control Maximum Rating Input Voltage 45V Wide Operating Voltage Range 4.6V to 40V Switching Current 1.4A min. PWM Control Built-in Compensation Circuit Correspond to Ceramic Capacitor (MLCC) Oscillating Frequency 1MHz typ. (A ver.) Soft Start Function 4ms typ. UVLO (Under Voltage Lockout) Over Current Protection (Hiccup type) Thermal Shutdown Protection Standby Function Package Outline NJW4153U2 : SOT-89-5 NJW4153KV1 : ESON8-V1 ■ PACKAGE OUTLINE NJW4153U2 NJW4153KV1 PRODUCT CLASSIFICATION Part Number Version NJW4153U2-A NJW4153KV1-A A A Oscillation Frequency 1MHz typ. 1MHz typ. Package SOT-89-5 ESON8-V1 Operating Temperature Range General Spec. -40°C to +85°C General Spec. -40°C to +85°C Ver.2013-03-21 -1- NJW4153 PIN CONFIGURATION 5 (2) 4 123 NJW4153U2 PIN FUNCTION 1. ON/OFF 2. GND 3. IN4. SW 5. V+ 1 2 3 4 (Top Vie...