NR117K - SANKEN

NR117K Buck Converter

The NR117K is buck converter ICs that integrate the 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 the overcurrent protection, undervoltage lockout, and thermal shutdown. An adjustable Soft-Start by an external capacitor prevents the excessive inrush curr.

Features

● Up to 87% Efficiency (VIN = 12 V, VOUT = 5 V, IOUT = 0.3 A) Up to 68% Efficiency at Maximum at Ligh Load (VIN = 12 V, VOUT = 5 V, IOUT = 10 mA)
● Current mode PWM control
● Stable with Low ESR Ceramic Output Capacitors
● No External Components Required by Incorporating Phase Compensation
● Soft-Start Function Adjustable Soft-Start time with an External Capacitor
● External ON/OFF Function
● Frequency: 30 kHz (EMI considered)
● Protection Functions:
● Overcurrent Protection (OCP): Drooping, auto-restart Thermal Shutdown (TSD): Auto-restart Under Voltage Lockout (UVLO) Typical Application Pac.