NCP1586
Low Voltage Synchronous Buck Controller
The NCP1586 is a low cost PWM controller designed to operate from a 5 V...
NCP1586
Low
Voltage Synchronous Buck Controller
The 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
Voltage 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
Voltage 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
http://onsemi.com
MARKING DIAGRAM
8 1
8
SOIC−8 D SUFFIX CASE 751
1586 ALYW
G
1
1586 = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week
G = Pb−Free Dev...