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NJW4131

New Japan Radio
Part Number NJW4131
Manufacturer New Japan Radio
Description Switching Regulator IC
Published May 26, 2016
Detailed Description NJW4131 Switching Regulator IC for Boost Converter w/ 40V/1.4A or 40V/1A MOSFET GENERAL DESCRIPTION The NJW4131 is a b...
Datasheet PDF File NJW4131 PDF File

NJW4131
NJW4131


Overview
NJW4131 Switching Regulator IC for Boost Converter w/ 40V/1.
4A or 40V/1A MOSFET GENERAL DESCRIPTION The NJW4131 is a boost converter with 40V/1.
4A or 40V/1A MOSFET.
It corresponds to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within wide input range from 4.
0V to 35V.
Therefore, the NJW4131 can realize downsizing of an application with a few external parts.
Also, it has a soft start function, an over current protection and a thermal shutdown circuit.
It is suitable for power supply to a Car Accessory, Office Automation equipment, Industrial Instrument, LED and so on.
■ PACKAGE OUTLINE NJW4131GM1-A (HSOP8) FEATURES Output Switch Voltage 40V max.
Wide Operating Voltage Range 4V to 35V Switching Current 1.
4A (min.
) @ A version 1.
0A (min.
) @ B version PWM Control Wide Oscillation Frequency 300kHz to 1MHz Soft-Start Function 4ms typ.
UVLO (Under Voltage Lockout) Over Current Protection / Thermal Shutdown Protection Standby Function Package Outline NJW4131GM1: HSOP8 NJW4131R: MSOP8(VSP8)* *MEET JEDEC MO-187-DA NJW4131R-B (MSOP8 (VSP8)) PRODUCT CLASSFICATION PART NUMBER VERSION NJW4131GM1-A NJW4131R-B A B SWITCHING CURRENT LIMIT (MIN.
) 1.
4A 1.
0A PACKAGE HSOP8 MSOP8(VSP8) OPERATING TEMPERATURE RANGE -40°C to +85°C -40°C to +85°C Ver.
2012-08-03 -1- NJW4131 ■ PIN CONFIGURATION 18 27 36 45 Exposed PAD on backside connect to GND NJW4131GM1-A 18 27 36 45 NJW4131R-B BLOCK DIAGRAM V+ PIN FUNCTION 1.
SW 2.
ON/OFF 3.
V+ 4.
RT 5.
IN6.
FB 7.
AGND 8.
PGND ON/OFF High: ON Low : OFF (Standby) 400kΩ FB IN- Regulator Standby ON/OFF ER⋅AMP UVLO TSD Low Frequency Control OSC PWM Buffer Vref 1.
0V Soft Start OCP Pulse by Pulse SW RT AGND PGND -2- Ver.
2012-08-03 NJW4131 ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Supply Voltage SW pin Voltage IN- pin Voltage ON/OFF pin Voltage Power Dissipation SYMBOL V+ VSW VIN- VON/OFF PD MAXIMUM RATINGS +40 +40 -0.
3 to +6 +40 HSOP8 790 (*1) 2,500 (*2) MSOP8(VSP8) 595...


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