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2A 23V Synchronous Buck Converter

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The LSP5526 is a monolithic synchronous buck regulator. The device integrates 95mΩ MOSFETS that provide
2A continuous load current over a wide operating input voltage of 4.5V to 23V. Current mode control provides
fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn


  • 2A Output Current
  • Wide 4.5V to 23V Operating Input Range
  • Integrated Power MOSFET Switches
  • Output Adjustable from 0.925V to 18V
  • Up to 96% Efficiency
  • Programmable Soft-Start
  • Stable with Low ESR Ceramic Output Capacitors
  • Fixed 340KHZ Frequency
  • Cycle by Cycle Over Current Protection
  • Input Under Voltage Lockout
  • Package: SOP-8L
  • Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)


  • Distributed power systems
  • Networking systems
  • FPGA, DSP, ASIC power supplies
  • Green electronics / appliances
  • Notebook computers

Product Specifications

Product Parameters

Compliance(Only Automotive supports PPAP) Standard
Type Buck
Minimum Input Voltage (V) 4.5
Maximum Input Voltage (V) 23
Output Current (A) 2
Minimum Output Voltage (V) 0.925
Maximum Output Voltage (V) 18
Quiescent Current Typ (µA) 1300
Shutdown Current Typ (µA) 0.3
Frequency Typ (kHz) 340
HS RDS(ON) (mΩ) 95
LS RDS(ON) (mΩ) 95

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Orderable Part Number Status Package Environmental Compliance Packing Buy from Distributor /
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Qty. Carrier
LSP5526-S8A Active SO-8 TPGP 2500 T&R Contact Sales Request Sample

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free