NCP1587A: Synchronous Buck Controller, Low Voltage

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.

Features
  • 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
Benefits
  • Versatility
  • Ease of use
  • Enhanced performance
  • Versatility
  • Ease of use
  • Enhanced performance
  • Ease of use
Applications
  • Graphics Cards
  • Desktop Computers
  • Servers/Networking
  • DSP and FPGA Power Supply
End Products
  • DC-DC Regulator Modules
  • DSP and FPGA Power Supply
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Synchronous Buck Controller, Low VoltageNCP1587/D (407.0kB)5
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP1587ADR2GActivePb-free Halide freeSOIC-8751-071Tape and Reel2500$0.2667
Specifications
ProductTopologyPhasesControl ModeVCC Min (V)VCC Max (V)fSW Typ (kHz)tres Typ (ns)
NCP1587ADR2GStep-Down1Voltage Mode4.513.2180 - 220
Synchronous Buck Controller, Low Voltage (407.0kB) NCP1587A
SOIC-8 Narrow Body CM1216