The NR110E series is buck regulator ICs integrates High-side power MOSFETs. The feature increasing efficiency at light loads allows the device to be used in the energy-saving applications. 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 NR110E series is available in an 8-pin SOIC package with an exposed thermal pad on the back side.
Feature
- Up to 94% Efficiency
- Up to 68% efficiency at light load (VIN=12V, Vo=5V, IO=20mA)
- Current mode PWM control
- Adjustable overcurrent protection (OCP)
- Stable with low-ESR ceramic output capacitors
- Built-in protection circuit -Overcurrent protection (OCP): drooping type auto restart -thermal shutdown (TSD): auto restart -Undervoltage (UVLO) circuit
- Built-in phase compensation
- Adjustable soft-Start with an external capacitor
- ON/OFF function
Applications
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l LCD TV / Blu-Ray / Set top boxl Green Electronic productsl White goodsl Stand-by power supply for digital appliances
