NCP5252: Synchronous Buck Regulator, Integrated, 2.0 A, 1.0 MHz, with Light Load Efficiency

NCP5252 is a synchronous buck regulator with integrated high-side and low-side MOSFETs. The device is capable of operating from a +5V or +12V supply and can output a voltage down to 0.6V. The switching frequency is adjustable from 333 kHz up to 1.0 MHz and has the ability to provide skip mode for light load efficiency. NCP5252 protection features include Under Voltage Lock Out (UVLO), Over Voltage Protection (OVP), Cycle-by-Cycle Current Protection (OCP) and Thermal Shutdown. The parts are packaged in a 3x3mm QFN-16.

Features
  • Input voltage from 4.5 to 13.2 V
  • 0.6V +/-1% Accurate Reference
  • Transient Response Enhancement (TRE)
  • Lossless low side current sense
  • Cycle-by-cycle current limit
  • PowerGood Indication
  • Power Saving Mode at Light Load
Benefits
  • Ability to use +5V or +12V supply
  • Accurate system level solution
  • Decreased output voltage ripple
  • Increased accuracy
  • Enhanced protection
  • Power sequencing capability
  • Enhanced efficiency at light load operation
Applications
  • Buck Regulator
  • Desktop/Server power
  • Set-Top-Box & LCD-TV
End Products
  • LCD-TV
  • Set-Top-Box
Design & Development Tools (1)
Document TitleDocument ID/SizeRevisionRevision Date
NCP5252 Design WorksheetNCP5252 DWS.XLS (1090.0kB)1
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
2A 1.0MHz Integrated Synchronous Buck Regulator with Light Load EfficiencyNCP5252/D (1068.0kB)4
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
Operation of NCP5252 in Low Dropout ApplicationsAND9095/D (226.0kB)P0
Package Drawings (1)
Document TitleDocument ID/SizeRevision
QFN16, 3x3, 0.5P485G-01 (57.3kB)F
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP5252MNTXGActivePb-free Halide freeQFN-16485G-011Tape and Reel3000$0.4
Specifications
ProductTopologyControl ModeVCC Min (V)VCC Max (V)VO Typ (V)IO Typ (A)Efficiency (%)fSW Typ (kHz)
NCP5252MNTXGStep-Down4.513.22Up to 1000
2A 1.0MHz Integrated Synchronous Buck Regulator with Light Load Efficiency (1068.0kB) NCP5252
NCP5252 Design Worksheet NCP5252
Operation of NCP5252 in Low Dropout Applications NCP5252
QFN16, 3x3, 0.5P NLSF308
NCP5252