NCP1586 ,Low voltage Synchronous Buck ControllerELECTRICAL CHARACTERISTICS (0C < T < 70C; 4.5 V < V < 13.2 V, 4.5 V < BST < 26.5 V, C = C = 1.0 n ..
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NCP1586
Low voltage Synchronous Buck Controller
NCP1586
Low Voltage Synchronous
Buck ControllerThe NCP1586 is a low cost PWM controller designed to operate
from a 5 V or 12 V supply. This device is capable of producing an
output voltage as low as 0.8 V. This 8−pin device provides an optimal
level of integration to reduce size and cost of the power supply. The
NCP1586 provides a 1 A gate driver design and an internally set
275 kHz oscillator. In addition to the 1 A gate drive capability, other
efficiency enhancing features of the gate driver include adaptive
non−overlap circuitry. The NCP1586 also incorporates an externally
compensated error amplifier and a capacitor programmable soft−start
function. Protection features include programmable short circuit
protection and under voltage lockout (UVLO). The NCP1586 comes
in an 8−pin SOIC package.
Features Input V oltage Range from 4.5 to 13.2 V 275 kHz Internal Oscillator Boost Pin Operates to 26.5 V Voltage Mode PWM Control 0.8 V ±1.0 % Internal Reference V oltage Adjustable Output Voltage Capacitor Programmable Soft−Start Internal 1 A Gate Drivers 80% Max Duty Cycle Input Under Voltage Lockout Programmable Current Limit This is a Pb−Free Device
Applications Graphics Cards Desktop Computers Servers / Networking DSP & FPGA Power Supply DC−DC Regulator Modules
