NJW4132U2-B-TE2 Nisshinbo

NJW4132 Switching Regulator IC for Boost Converter Current Mode Control w/ 45V/1.75A MOSFET GENERAL DESCRIPTION PACKAGE OUTLINE The NJW4132 is a boost converter with 45V/1.75A MOSFET. It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.5V to 40V. Therefore, the NJW4132 can realize downsizing of applications with a few external parts so that adopts current mode control. NJW4132U2 Also, it has a soft start function, external clock synchronization, over current protection and thermal shutdown circuit. It is suitable for boost application 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 1.75A min. PWM Control Built-in Compensation Circuit Correspond to Ceramic Capacitor (MLCC) Oscillating Frequency 300kHz typ. (A ver.) 700kHz typ. (B ver.) 2.0MHz typ. (C ver.) Soft Start Function 10ms typ. UVLO (Under Voltage Lockout) Over Current Protection (Hiccup type) Thermal Shutdown Protection Standby Function Package Outline NJW4132U2 : SOT-89-5-2 PRODUCT CLASSIFICATION Operating Oscillation Part Number Version Package Temperature Frequency Range General Spec. NJW4132U2-A A 300kHz typ. SOT-89-5-2 -40 C to +85 C General Spec. NJW4132U2-B B 700kHz typ. SOT-89-5-2 -40 C to +85 C General Spec. NJW4132U2-C C 2.0MHz typ. SOT-89-5-2 -40 C to +85 C Ver.2017-01-25 - 1 - NJW4132 PIN CONFIGURATION 5 (2) 4 PIN FUNCTION 1. SW 2. GND 3. IN- 4. EN/SYNC + 5. V 1 2 3 NJW4132U2 BLOCK DIAGRAM + V SW UVLO TSD EN/SYNC Enable High: ON (Standby) Low : OFF(Standby) 100k SYNC OSC S Q Buffer R Low Frequency Control PWM OCP IN- CURRENT ER AMP SENSE Soft Start Vref 1V SLOPE COMP. GND Ver.2017-01-25 - 2 -