New Japan Wireless launch built-in MOSFET step-down type switch Regulator NJW1933

Japan Wireless Co., Ltd. (headquarters: Tokyo Central District representative of the abolition of the President: Small Cangliang) developed a 600mA, 500kHz small package step-down switch regulator NJW1933, the regulator is most suitable for inverter, program control and other industrial equipment power supply and automotive electronic accessories. This product has begun to enter the production phase.

The NJW1933 step-down switch regulator has a built-in MOSFET with a wide range of input voltages ranging from 4.5V to 40V. Because of the built-in current control mode of the phase compensation circuit, so the minimum number of external components can be used to achieve step-down. Moreover, the optimization of the compensating circuit can use the external ceramic capacitor, the working frequency is very high and the small inductance can be used.

NJW1933 uses a small sot-23-6 package, and the ability to use small inductors and ceramic capacitors, these features are conducive to saving the actual area, so that a variety of power supply miniaturization.

Appearance Map-sot-23-6

Characteristics】

1. Minimum external components to achieve step-down applications

Because of the built-in current control mode of phase compensation circuit, so only the use of a minimum number of external components can be used to achieve step-down.

2. The most advantageous to each kind of power supply miniaturization

The input voltage range is very wide from 4.5V to 40V, and the optimization of the compensation circuit can use the external ceramic capacitor, the working frequency is very high can use small inductance, is advantageous to each kind of power supply miniaturization.

"Product Performance"

Input rated Voltage: 45V

Wide operating voltage range: 4.5V to 40V

Switch current: 0.75A min.

? Oscillation frequency: 500kHz fixed

? Low turn-off current: 1uA below

? built-in phase compensation circuit

? built-in overcurrent, overheat shutdown protection function

? Soft start function

The use of small ceramic capacitors (MLCC) and small inductors

? output can be adjusted to 1.25V

? Encapsulation: sot-23-6 (2.9mmx2.8mmx1.1mm)

Application】

Industrial equipment: Inverter, program controller, etc.

? Automotive Electronic Equipment: electronic components, ECU, etc.

For stable output of various power supplies

"Product Status"

Sample shipments have begun

? production planning starting from April 2013

"Technical Information/Business consulting"

For more information on this product, please refer to the New Japan Wireless website

Shanghai Branch http://www.cn.njr.com/

Hong Kong Branch Company http://www.hk.njr.com/

Welcome letter calls to negotiate.