NCP1589A: Synchronous Buck Controller, Low Voltage

Te NCP1589A or NCP1589B is a low cost PWM controller designed to operate from a 5V or 12V supply. This device is capable of producing an output voltage as low as 0.8V. This device is capable of converting voltage from as low as 2.5V. This 10 pin device provides an optimal level of integration to reduce size and cost of the power supply.

Features
  • VCC range from 4.5 to 13.2V
  • Boost pin operates up to 30V
  • Voltage mode PWM control
  • Precision 0.8V Internal reference
  • Internal 1.5A gate drivers
  • Input Under Voltage Lockout
  • Programmable Current Limit
Applications
  • Graphic Cards
  • Servers/Networking
End Products
  • Graphic Cards
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Synchronous Buck Controller, Low VoltageNCP1589A/D (87kB)2
Package Drawings (1)
Document TitleDocument ID/SizeRevision
DFN10, 3x3, 0.5P485C (33.7kB)E
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP1589AMNTWGActivePb-free Halide freeDFN-10485C1Tape and Reel3000$0.32
NCP1589AMNTXGActivePb-free Halide freeDFN-10485C1Tape and Reel3000$0.32
NCP1589BMNTWGLast ShipmentsPb-free Halide freeDFN-10485C1Tape and Reel3000
NCP1589BMNTXGActivePb-free Halide freeDFN-10485C1Tape and Reel3000$0.32
Specifications
ProductTopologyPhasesControl ModeVCC Min (V)VCC Max (V)fSW Typ (kHz)tres Typ (ns)
NCP1589AMNTWGStep-Down1Voltage Mode4.513.2
NCP1589AMNTXGStep-Down1Voltage Mode4.513.2
NCP1589BMNTXGStep-Down1Voltage Mode4.513.2
Synchronous Buck Controller, Low Voltage (87kB) NCP1589A
DFN10, 3x3, 0.5P NLAS4684