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NCP1587E

ON Semiconductor
Part Number NCP1587E
Manufacturer ON Semiconductor
Description Low Voltage Synchronous Buck Controller
Published Feb 24, 2011
Detailed Description NCP1587E Low Voltage Synchronous Buck Controller The NCP1587E is a low cost PWM controller designed to operate from a 5 ...
Datasheet PDF File NCP1587E PDF File

NCP1587E
NCP1587E

Overview
NCP1587E Low Voltage Synchronous Buck Controller The NCP1587E 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 NCP1587E 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 device 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 NCP1587E comes in an 8−pin SOIC package.
Features http://onsemi.
com MARKING DIAGRAM 8 8 1 SOIC−8 D SUFFIX CASE 751 1 1587E= Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Device 1587E ALYW G • • • • • • • • • • • • • • • • • Input Voltage Range from 4.
5 to 13.
2 V 275 kHz 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 This is a Pb−Free Device PIN CONNECTIONS BST 1 TG 2 GND 3 BG 4 (Top View) 8 PHASE 7 COMP/DIS 6 FB 5 VCC Applications Graphics Cards Desktop Computers Servers / Networking DSP & FPGA Power Supply DC−DC Regulator Modules ORDERING INFORMATION Device NCP1587EDR2G Package SOIC−8 (Pb−Free) Shipping† 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.
www.
DataSheet4U.
com © Semiconductor Components Industries, LLC, 2009 June, 2009 − Rev.
0 1 Publication Order Number: NCP1587E/D NCP1587E 12 V 3.
3...


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