Synchronous Buck Controller, Low Voltage

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Overview

The NCP1587 and NCP1587A are low cost PWM controllers designed to operate from a 5V or 12V supply. These devices are capable of producing an output voltage as low as 0.8V. These 8 pin devices provide an optimal level of integration to reduce size and cost of the power supply. The NCP1587 and NCP1587A provide a 1A gate driver design and an internally set 275kHz (NCP1587) and 200kHz (NCP1587A) oscillator. Other efficiency enhancing features of the gate driver include adaptive non overlap circuitry. The NCP1587 and NCP1587A 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.

  • Graphics Cards
  • Desktop Computers
  • Servers/Networking
  • DSP and FPGA Power Supply
  • DC-DC Regulator Modules
  • DSP and FPGA Power Supply
  • Input voltage range from 4.5 to 13.2V
  • Voltage Mode PWM Control
  • 0.8V +/- 1% Internal Reference Voltage
  • Adjustable Output voltage
  • Capacitor Programmable Soft-Start
  • Internal 1A Gate Driver
  • Programmable Current Limit

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NCP1587ADR2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Step-Down

1

Voltage Mode

4.5

13.2

180 - 220

$0.2947

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