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NCP1587DR2G Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1587DR2G Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 16 page © Semiconductor Components Industries, LLC, 2012 May, 2012 − Rev. 5 1 Publication Order Number: NCP1587/D NCP1587, NCP1587A Low Voltage Synchronous Buck Controller The NCP1587 and NCP1587A are low cost PWM controllers designed to operate from a 5 V or 12 V supply. These devices are capable of producing an output voltage as low as 0.8 V. These 8−pin devices provide an optimal level of integration to reduce size and cost of the power supply. The NCP1587/A provide a 1 A gate driver design and an internally set 275 kHz (NCP1587) and 200 kHz (NCP1587A) oscillator. In addition to the 1 A gate drive capability, other efficiency enhancing features of the gate driver include adaptive non−overlap circuitry. The devices also incorporate 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 NCP1587/A comes in an 8−pin SOIC package. Features • Input Voltage Range from 4.5 to 13.2 V • 275 kHz (NCP1587) and 200 kHz (NCP1587A) Internal Oscillator • Boost Pin Operates to 30 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 • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant Applications • Graphics Cards • Desktop Computers • Servers / Networking • DSP & FPGA Power Supply • DC−DC Regulator Modules SOIC−8 D SUFFIX CASE 751 1 8 MARKING DIAGRAM PIN CONNECTIONS 1587x = Specific Device Code (x = A for NCP1587A, blank for NCP1587) A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Device 1 BST 8 PHASE 2 TG 3 GND 4 BG 7 COMP/DIS 6 FB 5 VCC (Top View) 1587x ALYW G Device Package Shipping† ORDERING INFORMATION NCP1587DR2G SOIC−8 (Pb−Free) 2500/Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. 1 8 http://onsemi.com NCP1587ADR2G SOIC−8 (Pb−Free) 2500/Tape & Reel |
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