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reference designSP7662

MaxLinear SP7662

12A 300KHz Synchronous Step Down Regulator

Overview

TopologyBuck Converter
Input voltage18-22 V
Switching frequency255-345 kHz
Output 112 V / 5 A
IC revision2.1.0

Description

The SP7662 is a synchronous voltage modePWM step down (buck) regulator capable of aconstant output current up to 12 Amps. A wide5V to 22V single input voltage range allows forsingle supply operations from industrystandard 5V, 12V and 18V power rails.Operations down to 3V are supported with anadditional biasing voltage.With a 300kHz constant operating frequencyand integrated high and low side switch, theSP7662 reduces the overall component countand solution footprint. In addition to a 1%output setpoint accuracy, this device provideshigh efficiency, low ripple and excellent lineand load regulation. An enable function andsoft start feature allow for controlled power upsequencing implementation.Built-in current limiting, UVLO, output shortcircuitand over temperature protection insuresafe operation under abnormal operatingconditions.The SP7662 is offered in a RoHS compliant,lead free 26-pin 7mmx4mm DFN package.

Features

  • 12A Continuous Current
  • 5V-22V Single Input Voltage Rail-3V-22V Input Voltage with 5V Bias
  • PWM Voltage Mode Control-300kHz Fixed Synchronous Operations-Low RDSON Power Switches-0.8V Min. Output Voltage 1% Accuracy
  • Type II & III Compensations Support
  • Programmable Soft Start
  • Over Temperature & Short CircuitProtection/Auto-Restart
  • Current Limiting
  • RoHS Compliant Lead Free 26-Pin DFN
  • US Patent #6,922,041

Typical applications

  • Point of Load Converters
  • Distributed Power Architectures
  • FPGAs, DSPs and Processors Supplies
  • Power Supply Modules

More information

Products

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Data­sheet
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Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
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7443551730
SPECWE-HCI SMT Flat Wire High Current Inductor, 7.3 µH, 16.5 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance7.3 µH
Performance Rated Current16.5 A
Saturation Current @ 10%5.5 A
Saturation Current @ 30%12 A
DC Resistance5.9 mΩ
Self Resonant Frequency28 MHz
MaterialWE-PERM 
Packaging Unit400 
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