3A, 18V, Buck Regulator
NR120E series
eneral Descriptions
The NR120E series is buck regulator ICs integrates High-side ...
3A, 18V, Buck
Regulator
NR120E series
eneral Descriptions
The NR120E series is buck
regulator ICs integrates High-side power MOSFET. With the current mode control, ultra low ESR capacitors such as ceramic capacitors can be used. The ICs have protection functions such as Over-Current Protection (OCP), Under-Voltage Lockout (UVLO) and Thermal Shutdown (TSD). An adjustable Soft-Start by an external capacitor prevents the excessive inrush current at turn-on. The ICs integrate phase compensation circuit which reduces the number of external components and simplifies the design of customer application. The ON/OFF pin (EN Pin) turns the
regulator on or off and helps to achieve low power consumption requirements. The NR120E series is available in an 8-pin SOIC package with an exposed thermal pad on the back side.
May/16/2012
Package
Exposed SOIC 8 Thermally enhanced 8-Pin package
Features & Benefits
Current mode PWM control Up to 94% efficiency Stable with low ESR ceramic output capacitors Built-in protection function Over Current Protection (OCP) Thermal Shutdown (TSD) Under Voltage Lockout (UVLO) Built-in phase compensation Adjustable Soft-Start with an external capacitor Turn ON/OF the
regulator function
Electrical Characteristics
3A output current Operating input range VIN = 4.5V~18V Output adjustable VO = 0.8V~14V Fixed 350kHz frequency
Applications
LCD TV / Blu-Ray / Set top box Green Electronic products Other power supply
Typical Application...