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reference designSP7648

MaxLinear SP7648

Low Reference High Efficiency Boost Regulator

Overview

TopologyBoost Converter
Input voltage2.7-4.5 V
Output 15.5 V / 0.8 A
IC revision2.0.0

Description

The SP7648 is an ultra-low quiescent current,high efficiency step-up DC-DC converter idealfor single cell Li-Ion or dual cell alkalinebattery applications to drive various LEDs. TheSP7648 combines low quiescent current andexcellent light-load efficiency of PFM control.The SP7648 features synchronous rectification,a 0.3 charging switch, an anti-ringinginductor switch, under-voltage lockout andprogrammable inductor peak current. Thedevice can be shut down by a 1nA active LOWshutdown pin. A very low 0.288V referencevoltage is optimized for driving a constantcurrent load.

Features

  • True Shutdown
  • 700mA Output Current at 3.3V Input; 4.2V output
  • 92% Efficiency from 2.7VIN to 3.3VOUT
  • 2.7V to 4.5V Wide Input Voltage Range
  • 5V Fixed or Adjustable Output0.3ohm Switch
  • Integrated Synchronous Rectifier:0.3
  • Anti-Ringing Switch Technology
  • Programmable Inductor Peak Current
  • Logic Shutdown Control
  • Low 0.8V or 0.288V Reference Voltage
  • Small 10-pin DFN and MSOP Package

Typical applications

  • LED Driver
  • Handheld Portable Devices
  • Camera Flash

More information

Products

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L(µH)
IR(A)
ISAT(A)
fres(MHz)
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SamplesAvailability & Sample
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744042004
SPECWE-TPC SMT Tiny Power Inductor, 4.7 µH, 1.72 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance4.7 µH
Rated Current1.72 A
Saturation Current1.65 A
Self Resonant Frequency70 MHz
MountSMT 
–Check availability
744042006
SPECWE-TPC SMT Tiny Power Inductor, 6.8 µH, 1.5 A
Simu­lation
Availability
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance6.8 µH
Rated Current1.5 A
Saturation Current1.25 A
Self Resonant Frequency60 MHz
MountSMT 
–Check availability