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MaxLinear SP7661

Wide Input Voltage Range 3A, 600kHz, Buck Regulator

Overview

TopologyBuck Converter
Input voltage9.6-22 V
Output 13.3 V / 3 A
IC revisionN

Description

The SP7661 is a synchronous step-down switching regulator optimized for high efficiency. The part is designed for use with a single 4.75V to 22V single supply or 3V to 22V input if an external Vcc is provided. The SP7661 provides a fully integrated buck regulator solution using a fixed 600kHz frequency, PWM voltage mode architecture. Protection features include UVLO, thermal shutdown, output current limit and short circuit protection. The SP7661 is available in the space saving DFN package.

Features

  • 4.75V to 22V Input Voltage Range using Single Supply
  • 3V to 22V Input Voltage Range using Dual Supply
  • ±1% 0.8V Reference
  • 3A Output Capability
  • Current Limiting using Inductor DCR
  • Built in Low RDS(ON) Power Switches
  • 600kHz Fixed Frequency Operation
  • Over Temperature Protection
  • Short Circuit Protection with Auto-Restart
  • Wide BW Amp Allows Type II or III Compensation
  • Programmable Soft Start
  • Fast Transient Response
  • High Efficiency: Greater than 93% Possible
  • Nonsynchronous Start-Up into a Pre-Charged Output
  • Available in RoHS Compliant, Lead Free Packaging:Small 7mm x 4mm DFN
  • U.S. Patent #6,922,041

Products

Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
MaterialVersion Samples
744311220
STE ALT EAG CAD LTS PSP SPE IGS CADWE-HCI SMT Flat Wire High Current Inductor 2.2 9 1.75 13 11.4 52 Superflux SMT
Order Code Data­sheet
744311220
Samples
Order Code Data­sheet Downloads Product seriesL
(µH)
IR
(A)
LR
(µH)
ISAT
(A)
RDC
(mΩ)
fres
(MHz)
MaterialVersion Samples