Description
Ultra light load high efficiency,VIN=17V,Current mode Step-down Io=3A Buck Regulator IC NR131S Jul./09/2015 General .
The NR131S is buck regulator ICs integrates High-side power MOSFETs.
Features
* & Benefits
* Current mode PWM control
* Up to 94% efficiency at normal load condition
* Up to 85% efficiency at light load condition
* Stable with low ESR ceramic output capacitors
* Built-in protection function
Over Current Protection (OCP) Thermal Shutdown (TSD) Under Voltage L
Applications
* LCD TV / Blue-ray / Set top box
* Green electronic products
* Other power supply
Typical Application Circuit
NR131S
C1, C2: 10μF / 25V, C4, C5: 22μF / 16V, C7: 0.1μF, C9:1800pF, C11: 220pF(Option), R1: 510kΩ , R3: 10Ω, R4: 36 kΩ, R5: 27kΩ (VO=5.0V), R6: 12kΩ, R7:510kΩ(Option), D1: S