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SP6655 Datasheet High Efficiency 400ma Synchronous Buck Regulator

Manufacturer: Sipex

Overview: ® SP6655 Ideal for portable designs powered with Li Ion battery High Efficiency 400mA Synchronous Buck.

Datasheet Details

Part number SP6655
Manufacturer Sipex
File Size 181.64 KB
Description High Efficiency 400mA Synchronous Buck Regulator
Datasheet SP6655_SipexCorporation.pdf

General Description

The SP6655 is a 400mA synchronous buck regulator which is ideal for portable applications that use a Li-Ion or 3 cell alkaline/NiCD/NiMH input.

The SP6655’s proprietary control loop, 20µA light load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range of output currents.

As the input battery supply decreases towards the output voltage the SP6655 seamlessly transitions into 100% duty ratio operation further extending useful battery life.

Key Features

  • 98% Efficiency Possible.
  • Small 10-Pin DFN Package.
  • Ultra-low 20µA Quiescent Current.
  • 625mA Inductor Peak Current Limit.
  • Guaranteed Minimum 400mA Output Current.
  • 2.7V to 5.5V Input Voltage Range.
  • Output Adjustable Down to 1.0V.
  • 100% Duty Ratio Low Dropout Operation.
  • 80µA Light Load Quiescent Current in Dropout PVIN VIN BLON D1 D0 1 2 3 4 5 10 SP6655 10 Pin DFN LX 9 P GND 8 GND 7 V OUT 6 FB Now Available in Lead Free Packaging.

SP6655 Distributor